Abrol, D. P. (1986). Time and energy budgets of alfalfa pollinating bees Megachile nana Bingham and Megachile flavipes Spinola (Hymenoptera:Megachilidae). Proceedings of the Indian Academy of Sciences. (Animal Science), 95(5): 579-586.
Abrol, D. P., Shankar, U., Chatterjee, D. & Ramamurthy, V. V. (2012). Exploratory studies on diversity of bees with special emphasis on non-Apis pollinators in some natural and agricultural plants of Jammu division Indian. Current Science, 103:780-783.
Ahmad, R. and Srivastava, D. P. (2002). Relative visitation of Hymenopteran bees to pigeon pea. Indian Journal of Pulse research, 15(2): 203.
Aiyar, T. V. R. (1917). Catalogue of new wasps and bees (Fossores, Diploptera, Anthophila) described from the Indian region since 1897. Journal of the Bombay Natural History Society, 25: 92-103.
Akram, W., Sajjad, A., Ali, S., Farooqi, M. A., Mujtaba, G., Ali, M. & Ahmad, A. (2019). Pollination of Grewia asiatica (Malvaceae) by Megachile cephalotes (Hymenoptera: Megachilidae): Male vs. Female Pollination. Sociobiology, 66(3): 467-474.
Albrecht, M., Schmid, B., Hautier, Y. and Muller, C. B. (2012). Diverse pollinator communities enhance plant reproductive success. Proceedings of the Royal Society B, 279: 4845-4852.
Amala, U. & Shivalingaswamy, T. M. (2018). Trap-nest diameter preference of Megachile lanata (Hymenoptera: Megachilidae). Journal of Entomological Science, Vol.53 No.1 pp.96-98.
Arathi, P. (2010). Diversity of bee pollinators in a micro-landscape element of GKVK farming system in Eastern Dry Zone of Karnataka. M. Sc. Thesis, University of Agricultural sciences, Bangalore.
Araujo, V. A., Antonini, Y. and Araujo, A. P. A. (2006). Diversity of bees and their floral resources at altitudinal areas in the Southern Espinhaco Range, Minas Gerais, Brazil. Neotropical Entomology, 35(1): 30-40.
Baker, D. B. (1995). A review of the Asian species of the genus Euaspis Gerstacker (Hymenoptera: Apoidea: Megachilidae). Zoologische mededelingen, 69(22): 281-302.
Baker, J. R., Kuhn, E. D. and Bambara, S. B. (1985). Nests and immature stages of leaf cutter bees (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society, 58(2): 290- 313.
Batra, S. W. T. (1977). Bees of India (Apoidea), their behaviour, management and a key to the Genera. Oriental Insects, 11(3): 289–324.
Batra, S. W. T. (1982). The horn faced bee for efficient pollination of small farm orchards. In: H. W. Kerr, Jr. and L. V. Knutson (eds.), Research for Small Farms, pp. 117-120.
Bentley A. & Thomas J. (2022). Snow Entomological Museum Collection. Version 26.61. University of Kansas Biodiversity Institute. https://www.gbif.org/occurrence/856611261
Bingham, C. T. (1897). The Fauna of British India Including Ceylon and Burma, hymenoptera. Vol. I. Wasps and Bees. Taylor and Francis, London, 577 pp., 4.
Bingham, C. T. (1897). Fauna of British India, Hymenoptera- bees and wasps. Edi. Taylor and Francis, 1975, 1:1-579.
Bingham, C. T. (1898). On some new species of Indian hymenoptera. Journal, Bombay Natural History Society, 12: 115-130.
Bingham, C.T. (1899). On some New Species of Indian Hymenoptera. Journal, Bombay Natural History Society, 12: 115-129.
Bosch, J. and Kemp, W. P. (2001). How to manage the blue orchard bee, Osmia lignaria, as an orchard pollinator. Sustainable Agriculture Network, Washington.
Bosch, J. and Kemp, W. P. (2002). Developing and establishing bee species as crop pollinators: the example of Osmia spp. (Hymenoptera: Megachilidae) and fruit trees. Bulletin of entomological research, 92(1): 3-16.
Brar, H. S., Jhajj, H. S. and Gatoria, G. S. (1992). Abundance and activity of the bee visitors to (Cajanus cajan L. Millsp.) and role of Apis mellifera L. in its pollination. Indian Bee Journal, 54(1-4): 76-80.
Cameron, P. (1897). Hymenoptera Orientalia, or Contributions to a knowledge the Hymenoptera of the Oriental Zoological Region. Memoirs of the Manchester Society, 41: 1-144.
Cameron, P. (1901). Description of a new genus of bees from India. The Entomology, 34: 262-263.
Cameron, P. (1904). On some new species of Hymenoptera from Northern India. Annals & magazine of natural history, 7(13):211-233.
Cameron, P. (1907) Description of new genera and new species of Hymenoptera captured by C. G. Nurse at Deesa, Matheran and Ferozpur. Journal of the Bombay Natural History Society, 17: 1001-1012.
Cameron, P. (1908a) A distribution of the aculeate Hymenoptera of Bombay Presidency. Journal of the Bombay Natural History Society, 18: 300-311.
Cameron, P. (1908b) Description of a new species of Megachile from India. The Entomologist, 41: 88-89.
Cameron, P. (1909). On some undescribed bees and wasps captured by Lieut. Col. C. G. Nurse in India. Journal of the Bombay Natural History Society, 19: 129-138.
Cameron, P. (1913) On some new and other species of non parasitic Hymenoptera in the collection of zoological branch of Forest Research Institute. Indian Forest Records, 4: 117-123.
Cane, J. H. (2001) Habitat fragmentation and native bees: a premature verdict?. Conservation Ecology, 5: 3.
Chagnon, M., Ingras, J. and Oliveira, D. D. (1993). Complementary aspects of strawberry pollination by honey bees and indigenous bees (Hymenoptera). Journal of economic entomology, 86: 416-420.
Chatterjee, D., Remadevi, O. K. and Abdul Latheef, C. (2008). In: FORTROP II International Conference on Tropical Forestry Change in a Changing World, Faculty of Forestry, Kasetsart University, Bangkok, Thailand, pp. 17-20.
Cockerell, T. D. A. (1907). On a collection of Australian and Asiatic bees. Annals & magazine of natural history, 23: 221-236.
Cockerell, T. D. A. (1910). Some bees from high altitudes in the Himalaya. The Entomologist, 43: 238-242.
Cockerell, T. D. A. (1911a). Descriptions and records of bees. Annals & magazine of natural history, 8(43): 179-192.
Cockerell, T. D. A. (1911b). Descriptions and records of bees. Annals & magazine of natural history, 8: 310-319.
Cockerell, T. D. A. (1919a). Descriptions and records of bees. Annals & magazine of natural history, 3: 191-198.
Cockerell, T. D. A. (1919b). Descriptions and records of bees. Annals & magazine of natural history, 9: 355-360.
Cockerell, T. D. A. (1920). Descriptions and records of bees. Annals & magazine of natural history, 5(9): 113-119.
Cockerell, T. D. A. (1922a). Descriptions and records of bees. Annals & magazine of natural history, 9(10): 244-249.
Cockerell, T. D. A. (1922b). Descriptions and records of bees. Annals & magazine of natural history, 9: 360-367.
Dauber, J., Hirsch, M., Simmering, D., Waldhardt, R., Otte, A. and Wolters, V. (2003). Landscape structure as an indicator of biodiversity: matrix effects on species richness. Agriculture, Ecosystems & Environment, 98: 321-329.
Dhanyavathi, P. N. (2009). Studies on non Apis bee faunal diversity of Mysore district of Karnataka. M.Sc. Thesis, University of Agricultural Sciences, Bangalore.
Eardley, C., Kuhlmann, M. and Pauly, A. (2010). The bee genera and subgenera of sub-Saharan Africa. Abc Taxa, 7: 1-139.
Engel, M. S. & Gonzalez, V. H. (2011). Alocanthedon, a new subgenus of Chalicodoma from Southeast Asia (Hymenoptera, Megachilidae. Zookeys, 101:51-80.
Engel, M. S. (2005). Family-group names for bees (Hymenoptera: Apoidea). American Museum Novitates, 3476: 1–33.
Friese, H., (1899). Neue Arten der Bienengattung Osmia. (Palaearktisches Gebiet). Entomologische Nachrichten, 25: 25–27.
Friese, H. (1903). Neue Arten der Bienengattung Megachile (Blattschneidebiene) aus Amerika (Hym.). Zeitschrift für systematische Hymenopterologie und Dipterologie, 3: 241-248.
Friese, H. (1904). Ueber Megachile heteroptera Sich. (Hym.). Zeitschrift für systematische Hymenopterologie und Dipterologie, 4: 327-230.
Friese, H. (1914). Neue Bienenarten der orientalischen region. Deut. Entomolo. Zeits., 3:320-324.
Friese , H. & Schwerin, I. M. ( 1914 ). New bee species of the oriental region. German Entomological Journal, 3, 320-324.
Friese , H. ( 1920 ). New species of ventral collectors (Hymenoptera). German entomological journal, 49-55.
Gaston, K. J. (1993). Special pattern in the description and richness of the Hymenoptera. In: Lasalle, J. and Gauld, I.D. (Eds.) Hymenoptera and Biodiversity. CABI, Wallingford, 277-293.
GBIF Secretariat (2021). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2022-02-01.
Gonzalez, V. H. & Engel, M. S. (2012). African and Southeast Asian Chalicodoma (Hymenoptera: Megachilidae): New subgenus, new species, and notes on the composition of Pseudomegachile and Largella. Annales Zoologici, 62:599-617. https://doi.org/10.3161/000345412X659669
Gonzalez, V. H., Diego, A., Guevara, J., Jaramillo-Silva & Ospina, R. (2011). Discovery of Megachile (Pseudomegachile) lanata (Fabricius, 1775) (Hymenoptera, Megachilidae) in Colombia, an adventive bee species from the Old World. Check List, 15 (1): 45–48. https://doi.org/10.15560/15.1.45
Gotelli, N. J. and Colwell, R. K. (2001). Quantifying biodiversity: procedures and pitfalls in the measurement and comparison of species richness. Ecology Letters, 4: 379-391.
Griswold, T. and Parker, F. D. (2003). Stelis rozeni, new species, the first record of the parasitic bee genus Stelis from Southern Africa (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society,76: 282-285.
Gruber, B., Eckel, K., Everaars, J. and Dormann, C. F. (2011). On managing the red mason bee (Osmia bicornis) in apple orchards. Apidologie, 42(5): 564-576
Gupta, R. K. (1993). Taxonomic studies on the Megachilidae of North-western India (Insecta, Hymenoptera, Apoidea). India Council of Agricultural Research. New Dehli. Reprint: 1999, Scientific Publishers (India) Jodhpur, 294 pp.
Gupta, R. K. (1999). Taxonomic studies on the Megachilidae of North-Western India. Jodhpur: Scientific Publishers (India).
Gupta, R. K. (1990b). Descriptions of the male genitalia of some Indian megachilid bees. Entomologische Abhandlungen, 54: 97-102.
Gupta, R. K. and Simlote, S. (1995). A new species of Anthidium Fabr. from Himachal Pradesh, India. Reichenbachia, 31(15): 77-80.
Gupta, R. K. and Tewari, V. K. (1987a). A new species of genus Lithurgus Latr. from India. Journal of the Bombay Natural History Society, 84(2): 405-407.
Gupta, R. K. And Tewari, V. K. (1987c). A new species of Heriades spinola from India. Reichenbachia, 25: 65-66.
Gupta, R. K. (1987b). On a new subgenus Oriento heriades and two new species of genus Heriades spinola from India. Reichenbachia, 25: 67-71.
Gupta, R. K. (1988). Two new species of genus Eumegachile Friese from India. Reichenbachia, 26: 71-74.
Gupta, R. K. (1989). A new species of genus Creightonella Cockll. Journal of the Bombay Natural History Society, 86: 416-419.
Gupta, R. K. (1990a). On a new subgenus Neoashmeadiella and two new species of genus Ashmeadiella Cockerell from India. Reichenbachia, 29(10): 55-59.
Gupta, R. K. (1991a) A new subgenus of Coelioxys Latreille (Hymenoptera: Apoidea: Megachilidae) from India. Journal of the Bombay Natural History Society, 88: 425-428.
Gupta, R. K. (1991b). On genus Robertsonella Titus, with description of a new species from Himachal Pradesh, India. Reichenbachia, 28: 173-175.
Gupta, R. K. (1992). A key for the identification of Indian genera of family Megachilidae. Journal of the Bombay Natural History Society, 89(3): 296-301.
Gupta, R. K. (1992a). On a new subgenus Orientocoelioxys and a new species of genus Coelioxys Latr. from India. Reichenbachia, 29: 73-76.
Gupta, R. K. (1992b). Two new species of genus Coelioxys Latr. from northern India. Reichenbachia, 29: 155-159.
Gupta, R. K. (1993). Taxonomic studies on the Megachilidae of north-western India. (Insecta: Hymenoptera: Apoidea). Science Publishing, (India), Jodhpur, 1-294.
Gupta, R. K. (2003). An Annotated Catalogue of the Bee Species of the Indian Region. http://beesind.com
Gupta, R. K. (2003). The diversity of bees (Hymenoptera: Apoidea) in India. Advances in Insect Biodiversity. Agribios (India), Jodhpur.
Gupta, R. K., Simlote, S. and Sharma, S. L. (1997). Taxonomy of the Indian genus Noteriades Cockerell. Opuscula zoologica fluminensia, 157: 1-9.
Holzschuh, A., Steffan-Dewenter, I., Kleijn, D. and Tscharntke, T. (2007). Diversity of flower-visiting bees in cereal fields: effects of farming system, landscape composition and regional context. Journal of Applied Ecology, 44: 41-49.
Hooda, S. & Jain, N. (2020). Diversity of Bees (Hymenoptera: Apoidea) in Kota, Rajasthan (India). Journal of Environment and Bio-Sciences, Vol.34 (1), June-2020: 65-68.
Inoka W. A., Karunaratne, P. & Jayanthi, P. (2008). Edirisinghe Keys for the identification of common bees of Sri Lanka. Journal of the National Science Foundation Sri Lanka, 36 (1): 69-89
Javorek, S. K., Mackenzie, K. E. and Vander Kloet, S. P. (2002) Comparative pollination effectiveness among bees (Hymenoptera: Apoidea) on lowbush blueberry (Ericaceae: Vaccinium angustifolium). Annals of the Entomological Society of America, 95: 345-351.
Kamel Soliman, M. (2008). Hospicidal behavior of the cleptoparasitic bee Coelioxys (Allocoelioxys) coturnix, including descriptions of its larval instars (Hymenoptera, Megachilidae). http://hdl.handle.net/2246/5945
Kannagi A., Sivakumar, V., Santhi, V. & Borgia, J. F. (2013). Hymenopteran diversity in a deciduous forest from South India. International Journal of Biodiversity and Conservation, Vol. 5(10), pp. 666-670.
Kapil, R. P., Grewal, G. S., Kumar, S. and Atwal, A. S. (1974). Insect pollinators of alfalfa, Medicago sativa L. Indian Journal of Entomology, 36(3): 214-220.
Kearns, C. A. and Oliveras, D. M. (2009). Environmental factors affecting bee diversity in urban and remote grassland plots in Boulder, Colorado. Journal of insect conservation, 13: 655-665.
Kleijn, D. and Langevelde, F. V. (2006) Interacting effects of landscape context and habitat quality on flower visiting insects in agricultural landscapes. Basic and Applied Ecology, 7: 201-214.
Kornmilch, J. C. (2011). Einsatz von Mauerbienen zur Bestäubung von Obstkulturen; Handbuch zur Nutzung der Roten Mauerbiene in Obstplantagen und Kleingärten. Bienenhotel, Rostock, 1-92.
Kremen, C., Williams, N. M. and Thorp, R. W. (2002). Crop pollination from native bees at risk from agricultural intensification. Proceedings of the National Academy of Sciences, 99(26): 16812- 16816.
Kumar Ghorpade (2009). Identification and study of Indian bees (Hymenoptera- Apoidea): A scenario of the taxonomic status quo in our subregion. Colemania, 19:1-26.
Kumar, V. (1989). A new species of genus Osmia panzer (Hymenoptera: Apoidea: Megachilidae) from India. Journal of the Entomological Research, 13(1-2): 137-139.
Kumari, P. & Kumar, N. R. (2014). Studies on Megachile Latreille subgenus Callomegachile Michener (Hymenoptera: Megachilidae) from Chandigarh and Haryana plains, India. Zootaxa, 4:591-599.
Kumari, P. (2020). Taxonomic studies on subgenus Pseudomegachile Friese under genus Megachile Latreille (Hymenoptera) from Sutlej basin plains (India). Journal of Applied and Natural Science, 12(2): 146 - 155. https://doi.org/10.31018/jans.vi.2259
Kunjwal Neha, Khan, M. S. & Srivastava, P. (2016). Observations on nesting behaviour and nest structure of the resin bee, Megachile lanata Fabricius (Megachilidae: Hymenoptera). Trends in Biosciences, Vol.9 No.4 pp.220-224 ref.16.
Magnacca, K. N. (2015). Notes on native and alien Hymenoptera and Diptera (Insecta) from the Hawaiian Islands. Bishop Museum Occasional Papers, 116: 19-22.
Magnacca, K. N., Gibbs, J. & Droege, S. (2013). Notes on alien and native bees (Hymenoptera: Apoidea) from the Hawaiian Islands. Bishop Museum Occasional Papers, 114: 61-65.
Magurran, A. E. (1983). Ecological diversity and its measurement. 1-179.
Malyshev, S. I. (1968). Genesis of the Hymenoptera and the phase of their evolution. Methuen, London. ( Editors: Professor O. W. Richards and Boris Uvarov K.C.M.G., ISBN: 978-1-4684-7163-2 (Print) 978-1-4684-7161-8).
Mavromoustakis, G. A. (1937). Some new asiatic bees species of the subfamily Anthidinae (Apoidea). Annals & magazine of natural history, 10(19): 151-157.
Mavromoustakis, G. A. (1948). On the bees (Hymenoptera, Apoidea) of Cyprus, Part I. Annals & magazine of natural history, 1(12): 541-587.v
Meade-Waldo, G. (1912). Notes on the Apidae (Hymenoptera) in tlie collection of the British Museum, with descriptions of new species. Annals & magazine of natural history, 10: 461- 478.
Meade-Waldo, G. (1914). Notes on the Hymenoptera in the collection of the British Museum, with descriptions of new species. Annals & magazine of natural history, 4(18): 450-464.
Meyer, R. (1922) Apidae - Stelidinae 11. Gat . Euaspis Gerst. Archiv für Naturgeschichte, Abteilung A, 87, 233–247.
Michener, C. D. and Fraser, A. (1978). A comparative anatomical study of mandibular structure in bees. University of Kansas science bulletin, 51: 463-482.
Michener, C. D. and Griswold, T. L. (1994). The classification of old world Anthidiini. University of Kansas science bulletin, 55: 299-327.
Michener, C. D. (1944). Comparative external morphology, phylogeny, and a classification of the bees (Hymenoptera). The Bulletin of the American Museum of Natural History, 82: 151- 326.
Michener, C. D. (1966). A new species of Anthocopa from India (Hymenoptera: Megachilidae). The Entomologist, 99: 146-150.
Michener, C. D. (1986). Family-group names among bees. Journal of the Kansas Entomological Society, 59: 129-142.
Michener, C. D. (1996), The first South African dioxyine bee and a generic review of the tribe Dioxyini, contributions on Hymenoptera and associated insects dedicated to Karl V. Krombein. Memo. Entomological Society of Washington, 17: 142-152.
Michener, C. D. (2000). The bees of the world. The Johns Hopkins University press, pp. 913.
Michener, C. D. (2007). The Bees of the World, 2nd edition. The Johns Hopkins University Press, Baltimore, Maryland, Pp. 953.
Minz, K. A., Gupta, A. & Shaw, S. S. (2020). Diversity of bees along elevational gradient in different agro-climatic zones of Chhattisgarh. Journal of Entomology and Zoology Studies, 8(3): 1864-1867.
Mitchell, T. B. (1962). Bees of the eastern United States. II. Technical bulletin (North Carolina Agricultural Experiment Station), 152, 1-557.
Mitchell, T. B. (1962). Bees of the Eastern United States, North Carolina agricultural experiment station. Technical Bulletin, 2: 152-557.
Nagase, H. (2006). Synopsis of the bee genus Coelioxys Latreille (Hymenoptera: Megachilidae) of Japan, with description of a new species. Entomological Science, 9: 223-238.
Nayana, E. D. (2008), Studies on non-Apis bee faunal diversity of Western Ghat region of Karnataka, M.Sc. Thesis, University of Agricultural Sciences, Bangalore.
Ngat, T. T. & Lien, N. T. P. (2018). A survey on species composition and distribution of bees (Hymenoptera: Apoidea) in cao bang province. Institute of Ecology and Biological Resources - Vietnam Academy of Science and Technology, 184(08): 115 – 119.
Nixon, K. C. (1999–2002). WinClada ver. 1.0000. Published by the author, Ithaca, New York.
Nurse, C. G. (1901). New species of Indian Hymenoptera. Journal & proceedings of the Asiatic Society of Bengal, 70: 146-154.
Nurse, C. G. (1903a). New species of Indian aculeate Hymenoptera. Annals & magazine of natural history, 11: 393-404.
Nurse, C. G. (1903b). On new species of Indian aculeate Hymenoptera. Annals & magazine of natural history, 11: 529-549.
Nurse, C. G. (1904). New species of Indian Hymenoptera. Journal of the Bombay Natural History Society, 15: 573-578.
Oertli, S., Muller, A., Steiner, D., Breitenstein, A. and Dorn, S. (2005). Cross-taxon congruence of species diversity and community similarity among three insect taxa in a mosaic landscape. Biological Conservatio, 126: 195-205.
Parmar, H. & Rajpurohit, L. H. (2019). Morphological Study of the Immature Stages of the Solitary Bee, Megachile cephalotes (Smith) (Hymenoptera, Megachilidae). International Journal of Emerging Technologies and Innovative Research, ISSN:2349-5162.
Pasteels, J. J. (1972). Revision des Anthidiinae (Hymenoptera: Apoidea) de la region indo-malaise. Bulletin and Annals of the Royal Belgian Entomological Society, 108: 72-128.
Peters, D. S. (1972). Eine neue Osmia aus Sudindien (Hymenoptera: Megachilidae: Osmia). Senckenbergiana Biologica, 53(5/6): 383-385.
Popov, V. B. (1953). The reduction of the sting apparatus of Dioxynae, a parasitic subfamily of bees. Trudy Zoologicheskova Instituta Akademii Nauk SSSR., 13: 337-351.
Prashanth, K. (2009). Role of flower visitors in pollination and pod set of pigeonpea, Cajanus cajan (L.) Millspaugh. M.Sc. Thesis, UAS, Bangalore.
Priyanka Kumari and Neelima, R. Kumar. (2014). Studies on Megachile Latreille subgenus Callomegachile Michener (Hymenoptera: Megachilidae) from Chandigarh and Haryana plains, India. Zootaxa, 4:591-599.
Rahman, A. and Chopra, N. P. (1994). Three new species of bee pollinators of the genus Megachile Lat. (Hymenoptera: Apoidea: Megachilidae) together with their foraging plants and period of activity. Journal of entomological research, 18(4): 369-376.
Raw, A. (2002). New combinations and synonymies of leafcutter and mason bees of the americas (Megachile, hymenoptera, megachilidae). Zootaxa, 71: 1-43.
Richards, K. W. (1984). Alfalfa leafcutter bee management in western Canada. Agriculture Canada, pp. 56.
Richards, K. W. (1991). Effectiveness of the alfalfa leafcutter bee as a pollinator of legume forage crops. Acta Horticulturae, pp.180-184.
Saeed, S., Bashir, M. A., Khan, K. A., Sajjad, A., Alvi, A. M., Atta, S. & Ansari, M. J. (2019). Assemblage of pollinator communities in four widely isolated nature reserves of southern Punjab, Pakistan. Saudi Journal of Biological Sciences, Volume 26, Pages 860-865.
Sampson, B. J., Cane, J. H., Kirker, G. T., Stringer, S. J. and Spiers, J. M. (2009). Biology and management potential for three orchard bee species (Hymenoptera: Megachilidae): Osmia ribifloris Cockerell, O. lignaria (Say) and O. chalybea Smith with emphasis on the former. In: Hummer, K.E. (Ed.), Acta Horticulturae, 810: 549-555.
Sanath, R. M., Revannavar, R., Belavadi, V. V., Hanumantharaya, L., Nataraj, S. K., Raviraja & Shetty G. (2020). Checklist of non-Apis bees from eight districts of Karnataka. International Journal of Ecology and Environmental Sciences, Volume 2; Issue 4; 540-543.
Sardar, S., Warrit, N., Rameshkumar, A. & Kazmi, S. I. (2021). New distributional records of Megachile Latreille, 1802 (Apoidea: Megachilidae) from Indian States. Records of the Zoological Survey of India, Vol. 121(1)/23–29.
Schwarz, M. (2001). Revision der Gattang Radoszkowskiana Popov 1955 and ein Beitrag zur Kenntnis der Gattung Coelioxys Latreille 1809. Linzer Biologische Beitrag, 33: 1267-1286.
Shankar, U. (2012). Exploratory studies on diversity of bees with special emphasis on non Apis pollinators in some natural and agricultural plants of Jammu division, India. Current Science, 103(7):780-783.
Shankar, U., Abrol, D. P., Chatterjee, D. & Rizvi, S. E. H. (2017). Diversity of native bees on Parkinsonia aculeata L. in Jammu region of North-West Himalaya. Tropical Ecology, 58(1): 211–215.
Sharkey, M. J. (2007). Phylogeny and classification of Hymenoptera. Linnaeus Tercentenary: Progress in invertibrate taxonomy. Zootaxa, 1668: 1-766.
Sharma, S. L. and Gupta, R. K. (1994). A new species of genus Heriades Spinola from Rajasthan, India (Insecta: Hymenoptera: Apoidea: Megachilidae). Reichenbachia, 30(28): 173-175.
Sivakumar, A. K., Santhi, V. and Borgia, J. F. (2013). Hymenopteran diversity in a deciduous forest from South India. Int. International Journal of Biodiversity and Conservation, 5(10): 666- 670.
Smith, F. (1853). Catalogue of Hymenopterous insects in the collection of the British Museum part I London. British Museum, pp. 133-197.
Smith, F. (1859). Catalogue of British fossorial Hymenoptera, Formicidae, and Vespidae, in the collection of the British Museum London. British Museum, pp. 132-158.
Smith, F. (1870). Notes on the habits of some Hymenopterous insects from the North- West provinces of India by Charles Horne, with an appendix containing descriptions of some new species of Apidae and Vespidae collected by Mr. Horne. Transactions of the Zoological Society of London, 7: 161-196.
Smith, F. (1873). Descriptions of new species of fossorial hymenoptera in the collection of the British Museum, and of a species of the rare genus Iswara belonging to the family Dorylidae. Annals & magazine of natural history, 4:253-260.
Smith, F. (1875). Descriptions of new species of Indian aculeate Hymenoptera, collected by Mr. G. R. James Rothney, member of the Entomological Society. Transactions of the Zoological Society of London, pp. 33-50.
Smith, F. (1879). Descriptions of new species of Hymenoptera in the collection of the British Museum London. British Museum, 21:61-91.
Sopera, J. and Beggs, J. R. (2013). Assessing the impact of an introduced bee, Anthidium manicatum, on pollinator communities in New Zealand. New Zealand journal of botany, 51(3): 213-228.
Sue, S. H. (1998). Going native with pollinators. Maine Organic Farmer & Gardener, pp. 16-17.
Suma, S. (2006). Studies on bee faunal diversity of Bangalore region. M. Sc. Thesis, University of Agricultural Sciences, Bangalore.
Suresh, P. V., Sudheendra Kumar, V. V., Binoy, C. F., Mathew, G. and Narendran, T. C. (1999). The macro Hymenopteran fauna of Parambikulam wildlife sanctuary. Zoos' Print Journal, 14(4):1-2.
Syed, N. E., Khadri, N. & Begum, R. (2021). Complete Sting Morphology of Megachile anthracina Smith, 1853 and Megachile disjuncta (Fabricius, 1781). Uttar Pradesh Journal of Zoology, 42(16): 22-27, ISSN: 0256-971X (P).
Tkalců, B. (1980). Zwei neue Arten der Gattung Wainia gen.n. aus Vorderindian. Annotationes Zoologicae et Botanicae, Bratislava, 135: 1-20.
Tkalcu, B. (1978). Funf neue palaarktische arten der familie Megachilidae. Casopis Slezskeho Muzea, Serie A, Vedy Prirodni, 27: 153-169.
Tkalcu, B. (1988). Neue palaarktische arten und unterarten der Gattungen Chalicodoma und Megachile (Hymenoptera: Apoidea: Megachilidae). Vestnik Ceskoslovenske Spolecnosti Zoologicke, 52: 48-62.
Torchio, P. F. (1976). Use of Osmia lignaria Say (Hymenoptera: Apoidea: Megachilidae) as a pollinator in an apple and prune orchard. Journal of the Kansas Entomological Society, 49: 475-482.
Usman, S. and Puttarudraiah, M. (1955). A list of the insects of Mysore including the mites. Entomology series Bulletin, 6: 1-194.
Veereshkumar & Kumaranag K. M. (2018). Diversity and conservation of leaf cutter bees (Hymenoptera: Megachilidae). Advances in Plants & Agriculture Research, 8(1):53-54. https://doi.org/10.15406/apar.2018.08.00291
Veereshkumar, Kumaranag, K. M., Uthappa, A. R. Dibyendu Deb, Srivastava, M., Sridhar, K. B. A. & Handa, K. (2021). Wild bee pollination in Grewia flavescens Juss. International Journal of Tropical Insect Science. volume 41, pages1087–1093. https://doi.org/10.1007/s42690-020-00294-6
Vereecken, N. J. and Patiny, S. (2005). On the pollination of Ophrys catalaunica Danesch, O & Danesch, E by pseudocopulating males of Chalicodoma pyrenaic (Hymenoptera: Megachilidae). Natural, 86: 57-64.
Victor, H. G., Michael, S. Engel and Terry, L. Griswold. (2013). The lithurgine bees of Australia (Hymenoptera: Megachilidae), with a note on Megachile rotundipennis. Journal of melittology, 11: 1-19.
Victor, H. G., Terry, G., Christophe J. P. and Danforth, B. N. (2012). Phylogeny of the bee family Megachilidae (Hymenoptera: Apoidea) based on adult morphology. Systematic Entomology, 37: 261-286.
Wallace, A. B. and Smith, F. (1857). Catalogue of the Hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, alacca; and at Singapore. Journal of process Linnean Society, 2: 42-130.
Warncke, K. (1992). The West Palearctic species of the bee genus Coelioxys Latr. (Hymenoptera, Apidae, Megachilinae). Report of the Naturf Gesellsch Augsburg, 53: 31-77 (in German).
Warncke, K. (1980). For the distribution of the bee genus Andrena F. in Tunisia . Communications of the Munich Entomological Society, 70 : 86-87
Whitfield, G. H., Richards, K. W. and Kveder, T. M. (1987). Number of instars of larvae of the alfalfa leafcutter bee, Megachile rotundata (f.) (Hymenoptera: Megachilidae). The Canadian Entomologist, 10: 119.
Williams, N. M., Minckley, R. L. and Silveira, F. A. (2001). Variation in native bee faunas and its implications for detecting community changes. Conservation Ecology, 5(1): 7.
Willmer, P. G., Bataw, A. A. M. and Hughes, J. P. (1994). The superiority of bumblebees to honeybees as pollinators: insect visits to raspberry flowers. Ecological Entomology, 19: 271-284.
Winston, M. L. (1979). The proboscis of the long-tongued bees: a comparative study. The University of Kansas science bulletin,, 51: 631-667.
Wu Yan Ru (2004). The first record of the genus Anthidiellum cockerel, 1904 from china with descriptions of three new species (Apoidea: Megachilidae: Anthidiini). Acta Zoo taxonomica Sinica, 29(4): 774- 777.
Wu, Y. R. (2006). Hymenoptera: Megachilidae, Fauna Sinica, Insecta. Science Press, Beijing, Vol. 44, 474 pp.
WWW. Nurturing Nature. (2011). Leaf cutter bees-harmless, useful and often neglected pollinator.
Yasumatsu K. & Hirashima Y. (2011). Red-haired leaf-cutter bees of the group of Megachile bicolor from japan, the Ryukyus and Formosa (Hymenoptera, Megachilidae). Bulletin of the Bio-geographical Society of Japan, 66, 257-260, 12-20.