Classification
Aphidinae: Macrosiphini
Diagnosis
Medium-sized to rather large (2.1.-3.3mm) aphids on new growth of wild and cultivated roses, narrowly spindle-shaped, bright yellowish green, green, or pinkish brown. The dorsal abdomen is normally pale except for small brown intersegmental sclerites and the siphunculi are basally pale and apically dark in apterae, wholly dark in alatae. Antennae equal to or less than body length. Processus terminalis 4.7 times as long as base of last antennal segment. Segment III about equal to processus terminalis. Siphunculi 0.25 times as long as body length and almost twice in length of that of cauda. Cauda with nine hairs.
The aphid sometimes co-occurs with M. rosae in a very few numbers.
Distribution
India (Arunachal Pradesh, Assam, Himachal Pradesh, Karnataka, Manipur, Meghalaya, Nagaland, Sikkim, Tamil Nadu, Uttar Pradesh, West Bengal), Nepal, Pakistan.
Host plant(s)
Rosaceae: Rosa sp.
Measurements
Aptera: Length of body 3.01, width 1.54; antennae 2.73, segments III: IV: V: VI 0.68: 0.54: 0.42: (0.14+0.67); u.r.s. 0.11; h.t.2 0.12; siphunculus 0.77; cauda 0.39.Alata: Length of body 3.00, width 1.16; antennae 3.10, segments III: IV: V: VI 0.81: 0.7: 0.49: (0.15+0.71); u.r.s. 0.13; h.t.2 0.12; siphunculus 0.73; cauda 0.46.
Seasonal occurrence
September-October.
Natural enemies
Coleoptera: Coccinellidae: Chilocorus rubidus Hope, Cheilomenes sexmaculata (F.), Coccinella transversalis F., Oenopia kirbyi Mulsant, O. sauzeti Mulsant, O. sexareata (Mulsant), Propylea luteopustulata (Mulsant), Cryptogonus quadriguttatus (Weise), Scymnus (Pullus) pyrocheilus Mulsant.
Diptera: Syrphidae: Allograpta javana (Wiedemann), Ischiodon scutellaris (F.), Episyrphus balteatus (De Geer).
Hymenoptera: Braconidae: Aphidiinae: Aphidius colemani Viereck, A. rosae Haliday, Ephedrus plagiator (Nees), Praon sp.