INSECTS FROM MIOCENE OF FLORISSANT, COLORADO 719 



In the hind wing, the approximating ends of the cubital and 

 transversomedial are about 64 microns apart, the cubital more 

 apicad, not more basad as it is in Cryptocheilus sericosoma {Pompilus 

 sericosoma Sm.). 



Miocene shales of Florissant, Wilson Ranch, a very beautiful 

 specimen (H. F. Wickham). In Rohwer's table {Psyche, April, 

 1909) this runs nearest to Cryptocheilus florissantensis {Hemi- 

 pogonius florissantensis CklL), but differs by the great inequality 

 in the widths of the second and third submarginal cells above, and 

 also by the lack of a dusky cloud on the outer margin of the wing. 

 It is actually nearest to C. laminarum, which has a dusky band in 

 the region of the basal nervure, although it is light and incon- 

 spicuous in the type. I hesitated at first whether to refer the 

 insect to C. laminarum, but there are so many differences in the 

 details of the measurements that I can only regard it as distinct. 



It appears that in Miocene times Crypto- 

 cheilus was producing a number of closely 

 allied species, exactly as in the modern fauna, 

 and in all this time there is no evidence of 

 any generic modification. 



Janus disperditus Cockerell 



Wilson Ranch (Wickham). Professor 

 Wickham was so fortunate as to pick up the 

 reverse of my original type ! 



Hemichroa eophila Cockerell 

 Wilson Ranch (Wickham). About 9 mm. 

 long, anterior wing 7I; thus smaller than the 

 type, but otherwise similar. 



HEMIPTERA 



Tingis florissantensis n.sp. ' . " . c-j r 



^ •' ^ santensts. A. bide of 



Length of body about 3 mm. ; robust, thorax and elytron; B. 



black, of ordinary form; elytra extending ^"^ ^^ antenna, 

 perhaps half a mm. beyond abdomen; 

 antennae not especially long, length about 1280 jit, the last joint 

 about 240 jLi long; pronotal lateral margins not much expanded, 



