Diarrhegma modestum (Fabricius)

Nomenclature

Dacus modestum Fabricius, 1805: 278

Rioxa modesta: Wiedemann, 1824: 53

Diarrhegma modestum: Bezzi, 1913: 108

Ptilona modesta: Wulp, 1899: 219

Tephritis incisa Wiedemann, 1824: 53

Trypeta viana Walker, 1849: 1006

Diarrhegma modestum: Norrbom et al., 1999: 139

Taxonomic position

Diptera: Brachycera: Tephritoidea: Tephritidae: Phytalmiinae: Acanthonevrini

Diagnosis
  • Scutum reddish brown with anterior and posterior black patches
  • Scutum with broad triangular, yellow coloured prescutellar patch 
  • Scutellum entirely yellow with three pairs of scutellar setae
  • Wing predominantly dark brown to black with hyaline spots and wedges
  • Oviscape black with aculeus tactile (elongate preapical setae)
Host plants

They are predominantly saprophytic. Larvae of D. modestum were found feeding on frass coming out of drumstick trunk damaged by coleopteran borer.

Distribution

Delhi, Karnataka, Tamil Nadu, West Bengal

References

Bezzi, M. (1913) Indian trypaneids (fruit-flies) in the collection of the Indian Museum, Calcutta. Memoirs of Indian Museum, 3, 53-175.

David, K.J. & Ramani, S. (2011) An illustrated key to fruit flies (Diptera: Tephritidae) from Peninsular India and the Andaman and Nicobar Islands. Zootaxa, 3021, 1–31.

Fabricius, J. C. (1805) Systema antliatorum secundum ordines, genera, spcies, adiectis synonymis, locis, observationibus, descriptionibus. Reichard, Brunsvigae [= Brunswick]. 1 + 373 + 30 p.

Norrbom, A.L., Carroll, L.E., Thompson, F.C., White, I.M. & Freidberg, A. (1999) Systematic Database of Names. In: Thompson FC (Ed.) Fruit fly expert identification system and systematic information database. Myia, 9, 65–251.

Habitus (dorsal) female
Habitus (lateral) female
wing copy.