August, '10] GILLETTE : APHIDIDAE 369 



ington, "Webster and Springfield, both alate and apterous viviparse 

 were taken. This is a pretty lemon yellow species with antennae 

 beyond second joint, black, with first and second sectors and the inner 

 margin of the stigma conspicuously black, and with 10 to 12 circular 

 sensoria on the very long third joint of the antenna. 



Myzocallis tnfolii (Monell), Figs. 14, 15. What seems with little 

 doubt to be this species was taken in moderate numbers on the under 

 side of leaves of red clover at Lansing, Geneva, Albany and Wash- 

 ington, D. C. The third and fourth joints of the antenna are in 

 the ratio of about 4 to 3 in the specimens taken, instead of being 

 in the ratio of 2 to 1, as originally described. The apterous viviparge 

 are very tuberculate and have what rarely occurs — a row of sen- 

 soria on the third joint of the antenna. 



Myzocallis ulmifolii (Monell), Fig. 16. Taken at Chicago, Lans- 

 ing, Portland, Mich., Detroit. Rochester, Geneva, Albany, New York 

 City, Washington and Portland, Ore. This is an abundant species 

 on elms in Colorado also, wherever the elm is planted. The dainty 

 white lines upon the dorsum, the decidedly transverse sensoria on 

 the third joint of the antenna, and the four long dorsal spines upon 

 the dorsum of the abdomen, seem to be sufiicient characters to sep- 

 arate this from allied species. 



Myzocallis (?) carycefolim (Davis), Figs. 17, 18. Taken on Carya 

 alba at Kansas City, and Rochester, and sent to me by Mr. J. J. Davis 

 from hickory at Lake Forest, Illinois, 6-24-'09. Taken on both 

 upper and lower surfaces of the leaves of Carya alba, fairly com- 

 mon. Body short, verj" dark in general color, almost black, but with 

 conspicuous white markings, and the entire under surface of the 

 body powdered with white. There are strong erect spines or tuber- 

 cles upon the dorsum of the abdomen and the costal margin of the 

 wing has two distinct dusky spots, one at each end of the stigma. 

 The antennal spine is distinctly shorter than joint 6. 



Myzocallis (?) sp., Fig. 24. A small, pale yellow species, with 

 pink cross^band on metathorax and with some pink color upon pro- 

 and meso-thorax, with antenna longer than the body and upon no 

 frontal tubercles, with spur more than twice the length of sixth seg- 

 ment, with two long stout erect spurs on dorsum of abdomen and 

 with wing veins and stigma all somewhat dusky. Rather common 

 upon the under surface of leaves of Quercus alba at Georgetown, 

 D. C. 



Calaphis hetulcecolens (Fitch), Fig. 19. Specimens were taken at 

 Geneva on Betula alba-laciniata. The specimens agree well with 

 Fitch's description and with specimens that Mr. Monell sent me from 



