40 KANSAS UNIVERSITY SCIENCE BULLETIN. 



This form was taken November 1, on the milkweed (AscJe- 

 piadis sp.?). It is gregarious in habit and colonizes the vent- 

 tral side of the leaves. 



Callipterus bellus Walsh, Plate VII, fig. ii. 



Head yellowish brown, and very small in proportion to the 

 prothorax, being somewhat overlapped by the latter, making 

 the head appear about twice as broad as long. Antenna' nearly 

 bare, pale, with distal parts of segments three to six black ; 

 length of segments : I, 0.09 mm. ; 11, 0.05 mm. ; III, 0.59 

 mm. ; IV, 0.43 mm. ; V, 0.41 mm. ; VI, 0.23 mm. ; VII, 0.36 

 mm. ; total length of antennae, 2 mm., extending near to the 

 base of the style. Sensoria circular and few, about five on the 

 third joint ; the usual one on the fifth near the distal end ; a 

 small elongate cluster at the union of the sixth and seventh. 

 Eyes pale red ; ocular tubercles present and small. Ocelli 

 present and inconspicuous. Beak dark, extending to the pro- 

 coxse, being 0,32 mm. long. 



Prothorax extra large. Central part of the same color as the 

 head, but the lateral borders black, which color extends caudad 

 and apparently to the distal end of the wings. Lateral tuber- 

 cles small, and on the boundary of the pro- and mesothorax. 

 Thorax black ; wings hyaline, but black along the costal and 

 subcostal areas, extending to the apex of the wing as shown in 

 the illustration. Discoidals frail and dark brown. Stigma, 0.9 

 mm. long and 0.14 mm, broad. Total wing expansion, 7,25 

 mm. Legs black and hirsute, especially the tibia. 



Abdomen brownish, anal lobes quite prominent and hirsute, 

 extending midway on the knob of the style. Honey-tubes 

 cylindrical, concolorous with the abdomen, 0.05 mm. long, or 

 about one-third the length of tarsi. Style concolorous with the 

 abdomen, hirsute and spinous, knobbed, 0.32 mm., being six 

 times the length of the honey-tubes, or twice the length of the 

 tarsi. Total length of the body, 2.44 mm. 



This form was taken June 14 on the oak (Quercus rubra) . It 

 is sporadic in habit. Only a few specimens were on the ventral 

 side of each leaf where found, 



Callipterus, n. sp. Plate XIV, fig, 76. 



Head brownish yellow. Antenn;r slightly hirsute, black at 

 the distal ends, except the first, second and seventh joints ; 



