214 IOWA ACADEMY OF SCIENCES. 



This is a widely distributed species, having been received 

 from Maryland and Kansas. Specimens are in the VanDuzee 

 collection from Ontario, and it has been taken at Ames for a 

 number of years. It occurs only on blue grass in wooded areas, 

 where it may be found in immense numbers. It was first 

 observed this season, Juae 4th, in considerable numbers, and 

 from then on nearly through July. Observations were not 

 made again until September, when it was found as thick as 

 ever. The larvas were not successfully separated from those 

 of other species occurring in the same location and so no sepa- 

 ration into broods can be made at present. 



DELTOCEPHALUS CINEREUS VAN D. 

 Trans. Am. Ent. Soc. XIX, p. 304, 1892. 



This is a neat, compact little species, slightly stouter in 

 appearance than melscheimeri and of a distinctly fuscous or 

 cinereus cast. 



Tne vertex is twice as long on the middle as next eye, length 

 and width about equal, tip acutely produced, pale fulvous brown, 

 with narrow margins and a broader median line enclosing a 

 black impressed line, white; elytra with cinereus nervures, 

 heavily margined with fuscous. 



Genitalia: Ultimate ventral segment of female slightly 

 rounding behind, distinctly notched in the center, slightly arc- 

 uated and deeply black either side of the notch; male valve 

 produced, sides emarginated, apex obtusely rounding; plates 

 more than twice the length of the valve, convexly pointed. 



Specimens of this species have been received only from Cal- 

 ifornia, from which place it was originally described. This 

 species and the preceding one are closely allied, but may be 

 readily separated by the length of the vertex and the female 

 genitalia, as well as by the difference in color. 



DELTOCEPHALUS AURATUS G. & B. 

 Hemiptera of Colorado, p. 85, 



The female described under this name by Gillette and Baker 

 (Hemiptera of Colorado, p. 85) was evidently a freshly issued 

 example of melscheimeri as may be readily determined by com- 

 paring his description and drawing with the descriptions and 

 drawings of D. affinis on the preceding page of same work, 

 affinis being also a synonym of melscheimeri as proved by exam- 

 ination of typical specimens of both sexes. The male auratus, 

 however, is a very distinct species, with a more roundingly 

 margined vertex, and narrower front and clypeus. 



