l6o KANSAS UNIVERSITY QUARTERLY. 



at the anterior end. Seven females from Douglas county, Kansas, 

 May and June, also show no black on the thoracic dorsum; while in 

 a single male, June, the black stripe-beginning is distinct. The 

 picture of the wing of the latter specimen is like that of the females, 

 only less distinct. 



Variety typica of Loew is represented b\- numerous specimens. 

 The female of this variety shows but a very slight infuscation at the 

 tip of the ovipositor, while in perfecia the ovipositor is much more 

 broadly blackened. Five females, Douglas county, Kansas, and two 

 from Connecticut. In two of the former and one of the latter 

 the picture of the wings is similar to that of the females, except 

 that the brown which runs along the end of the fourth vein is 

 more attenuated. The brownish spot in the second costal cell varies 

 in size in the different individuals and is sometimes lacking in the 

 male. All the Kansas specimens were taken in May. A male and 

 female from Connecticut come nearest this variety, though the lateral 

 stripes of the thorax show a little darker than the rest of the dorsum. 

 In the male, moreover, the brown rivulets which cross respectively the 

 anterior and i)Osterior cross veins are continent between the third and 

 fourth veins. 



Two females, Connecticut, differ from the i)receding variety in the 

 picture of their wings. The hyaline l)an(l running between the 

 two cross veins, ends between the second and third veins, and does 

 not reach the costa, resembling in this point Loew's variety arciilata. 

 The brown rivulet bordering the tiij of the wing, joins the brown 

 along the end of the fourth vein. Thus the brown border of the 

 wing is uninterrupted from the triangular hyaline spot near the stigma 

 to beyond the termination of the fourth vein. .\ female from Cali- 

 fornia differs from the Connecticut specimens in not showing the 

 conjunction of the two brown stripes at tip of wing; the oblique 

 hyaline band between the cross veins ends abruptly at the second 

 vein; the metathorax has a black picture and the abdomen is reddish 

 brown, doubtless darkened in process of drying. 



Six specimens, male and female, from California and Douglas 

 county, Kansas (May and June), agree with variety vitiii:;era, Loew. 

 The Kansas specimens are smaller than the others, measuring but 

 5 mm. 



Two males, Douglas county, Kansas, add, if possible, to the con- 

 fusion in this group. One has comparatively slender and pointed 

 frontal bristles, a black spot upon each basal corner of scutellum, 

 and two blackish spots on metathorax. Dorsxim of thorax without 

 lateral black stripes. Wings, on first fourth yellowish, on remainder, 

 deep smoky-black except a small triangular hyaline space at end of 



