52 MAINE AGRICULTURAL EXPERIAIENT STATION. I914. 



iaiKXD2iEnirr~- 



Fig. 7. Aphis z'arians, green variety. Antenna of alate female. 



lateral tubercle on the prothorax, another on first abdominal 

 segment, and a third between the cau'da and cornicle. The wing 

 is shown in Fig. 34 (23-10) and Fig. 39 (28-13'). 



In the fall a return migration to the currant and gooseberry 

 occurs, the fall migrants give birth to nymphs which grow to 

 mature males and egg laying females. Eggs are deposited 

 upon the bushes where they remain all winter hatching in the 

 first warm days of spring to the young stem-mother which is 

 the point in the life cycle with which we began this account. 



This species is characterized both in the winged and wingless 

 forms by a prominent lateral tubercle on the prothorax, an- 

 other on the first abdominal segment, and a third between the 

 cornicle and cauda. 



Maine collection numbers 6-04, 20-06, 48-06, 24-09, 23- 10. 

 19-12, 16-13, 22-13, 28-13. 



Aphis sanborni n. n. : 



Green aphid of gooseberry (23-13). 

 Figs. 8, 9, 10, II, 29, 35. 



Associated with the foregoing species upon wild gooseberry 

 on the terminal shoots and ventral surface of the leaf, I found 

 for the first time in 19 13 a plantlouse at Highmoor Farm 

 which I have named sanborni, thinking it probable that it is 

 the species described without a name by Mr. C. E. Sanborn in 

 Kansas Aphididae (1904), p. 50-51, and Fig. 71. 



The apterous forms are pale green and immaculate v/ith 

 water- white cornicles and pale cauda. The coloring of the 

 piipa is the same except that the wing pads are dusky. 



Fig. 8. Aphis sanborni. Antenna and cornicle of stem female. 



