92 



Studies in Kansas Insects. 



Measurements in Millimeters. 



Body. Tegmina. Post, femora. 



Female 29.0-23.0 25.0-21.0 14.0-13.0 



Male 21.5-19.0 20.5-18.0 12.8-10.0 



Fie. 88. — E. texensis Br. 



Encoptolophus costalis Sc. 



Head blunt and of the same relative size to the size of the body as 

 in sordidus. General size about as in texensis. Color varying from 

 light gray with fuscous maculations through green to brown, the macu- 

 lations very distinct and clear-cut in every case. Antennas rather short 

 and clubbed — that is, thicker on the proximal third — lighter in color 

 at the base. Vertex of the fastigium rather small, trigonal, sulcate; 

 median carina well defined caudad. Frontal costa sulcate at the ocellus, 

 sides parallel below the antenna?, slightly convergent above, meeting the 

 scutellum of the vertex at such an angle as to almost confuse this 

 insect with the Tryxalinse. Pronotum about as in the other two species; 

 median carina thin, sharp, and higher than in texensis; lateral carina? 

 on prozona come nearer meeting those of the metazona than is the 

 case in texensis. Tegmina of medium width and length, always with 

 two well-defined bands, and usually a third; the median and ulnar veins 

 widely separated, the intercalary vein much nearer the ulnar than the 

 median vein and usually curved, the space between them almost always 

 filled by one row of long cells. Wings almost entirely hyaline, slightly 

 infuscated apically; the axillary vein black, the anal white. Posterior 

 femora of medium size, black or bluish-black on the inside, not as dark 

 as in texensis and sordidus, with two apical light stripes and a basal 

 one located on the upper side; tibiae blue with a lighter basal annulus. 



