1920] Ball: Review of the Genus Gypona 91 



Gypona (Prairiana) cinerea Uhl. 



Uhler described this species from a rather small stout 

 example from Manitou, Colorado. It, however, occurs in a 

 number of quite distinct varieties. They all agree in possessing 

 the long, flat, angulate vertex, the very narrow parallel mar- 

 gined front and the cinereous color with the fine dark punctures. 

 Beyond this they are remarkably distinct and at first would be 

 regarded as extremely well marked species in both size and 

 form. It is possible that the extreme forms ponderosa and 

 subta may be distinct but in so variable a group it is best to 

 await good life history studies before erecting distinct species 

 when varietal descriptions will serve every purpose and avoid 

 confusion. Gibson refers drier ea to the extreme Southwest, but 

 specimens have been examined from Montana, Colorado, 

 Dakota, Kansas, Iowa and Illinois. It is probable that most if 

 not all of the eastern references should be transferred to the 

 next species. This species has never been taken in the mountains 

 and is probably strictly limited to the "short graSs" regions. 



Gypona (Prairiana) cinerea var. ponderosa n. var. 



Resembling typical cinerea but larger and much broader 

 and heavier. The vertex is so broadened that the apex is 

 broadly rounding rather than angulate. The elytra only equal 

 the abdomen as in typical cinerea. The coloration is that of 

 miliaris females with the black points back of ocelli large and 

 distinct, the pronotal pits back of these deep and fuscous 

 marked. There are slight fuscous markings in many of the 

 elytral cells. Length of females, 11 mm.; width, 4 mm. 



Described from a single female taken by the writer in a 

 meadow on the plains east of Greeley, Colorado. 



Gypona (Prairiana) cinerea var. kansanat n. var. 



Resembling cinerea but with long narrow parallel elytra and 

 definitely angled vertex. Pale cinereous, finely punctured, the 

 males inclined to be smoky. Length, 9 mm.; width, 3 mm. 

 Described from four examples from Onaga, Kansas, collected 

 by Crevecoeur. This is apparently the most common variety of 

 the species. The writer has collected it sweeping over prairie 

 grass in Colorado and Iowa and Crevecoeur took it abundantly 



