360 Journal of Agricultural Research voi. vi, no. 10 



forms the eyes are composed of three facets and are very minute, whereas in these 

 specimens the eyes are large and composed of numerous facets, thus approaching the 

 compound eyes of the winged form. All other characters met with are those of the 

 wingless viviparous female. 



Pupa. — Antennal segments in length as follows: 1,0.048 mm.; 11,0.064 mm.; Ill, 

 0.192 mm.; IV, 0.064 mm.; V, 0.08 mm.; VI, 0.08 mm.; segments armed with hairs 

 and sensoria as in the wingless female. Wing pads about 0.64 mm. long. Compound 

 wax pores similar to those of the wingless females. Hind tibia, 0.432 mm.; hind 

 tarsus, 0.128 mm. Body with long hairs as in the wingless form. Length, 2.32 mm.; 

 width, 0.96 mm. 



Pinkish, with a brick-red diffusion.; wing pads whitish yellow; wool sparse, erect. 



Winged viviparous female (fall migrant). — Antennal segments in length as 

 follows: 1,0.048 mm.; 11,0.064 mm.; Ill, 0.432 mm.; IV, o. 112 mm.; V, 0.112 mm.; 

 VI, 0.08 mm. (unguis, 0.032 mm.); segments I and II armed with a few hairs; segment 

 III armed with about 20 transverse sensoria, which extend a little over half way around 

 the segment as in E. lanigerum, the dorsal side of the segment armed with numerous 

 prominent hairs; segment IV similar to segment III and armed with four or five 

 transverse sensoria; segment V (fig. 1, A) armed with three or four transverse sen- 

 soria and a distal fringed sensorium, a few hairs, and many rows of setse; segment VI 

 similar to segment V, but without transverse sensoria. The fringed sensorium at the 

 base of the unguis varies in shape. Fore wing somewhat similar to that of E. ameri- 

 canum; stigma short and rounded at the distal extremity. Hind tibia, 0.88 mm.; 

 hind tarsus, 0.128 mm. Form elongate ; length, 1.76 mm.; width, 0.72 mm.; fore wing, 

 2.4 by 0.88 mm. Without wool. 



Dark brown or very dark green. Base of fem.ora and tibiae yellowish gray. Stigma 

 bluish gray. Abdomen shining. 



Described from wingless females, intermediates, pupae, and winged 

 viviparous females in balsam mounts. 



Type: Cat. No. 20083, U. S. National Museum. 



