[65] N'iNTH Report of the State Entomologist 405 



FAMILY AVYLIDM. 

 APHIS. Linn. 



Apple-tree Aphis, A. tnali, (Fab.) Ent. Syst. iv. 216. Common on 

 the under side of the leaves and tips of the vouiig branches of 

 the apple-tree. No. 839, male. 



" Chekry-treb Aphis, A. cerasi, (Fab.) Ent. Syst. iv. 211. Com- 

 mon on the under side of the leaves of the garden cherry, 

 {Cerasus vulgaris, Mill.) No. 840, male. 



''■' Cherry-inhabiting Aphis, *A. cerasieolens. Pale greenish yel- 

 low; antennie and legs black, base of the femurs pallid; 

 nerves of the fore wings dusky, stigma pellucid white; 

 abdomiual horns quite short. When irritated, the legs and 

 antennae instantly emit from their pores a bluish white cotton- 

 like substance, which remains adhering to them, resembling 

 fine mould. Length, 0-20, to the tips of the wings. On the 

 common black-cherry-tree, [Cerasus serotinci, DC) No. 841, 

 male. 



"Berberry Aphis, *A. herheridis. Black; pectus and abdomen 

 pale yellow, tip black; legs dusky; larva and pupa pale, with 

 a green or black vitta on each side of the back, parallel with 

 the outer magin. Length, 0"10. On the under side of ber- 

 berry leaves. No. 842, male; 843, female. 



Cabba-GE Aphis, A. brassicm, (Linn.) Syst. Nat. ii. 734. Common on 

 the under side of cabbage leaves. No. 844, male. 



''* Silk-weed Aphis,*.-!, asdepiaiis. Black; abdomen pale green; 

 sides with two rows of impressed fuscous dots, three in the 

 lower, larger, five iu the upper; abdominal horns nearly 

 equalling the tip; stigma smoky whitish; nerves brown; the 

 costal whitish. Length, 0-15. On the lower surface of young 

 leaves of the common silk-weed. No. 845, male. 



Dogwood-leaf Aphis, *.L cornlfolm. Apterous females black, sub- 

 pruinose, obovate; legs pale yellow, feet black; antenna? pale 

 yellow, tips black; horns nearly equalling the truncated tip 

 of the abdomen. Length, 0-05, to tip of abdomen. On the 

 under surface of the leaves of Cornus iKiniculata. No. 846, 

 female. 



