424 TERTIAEY INSECTS OP NORTH AMERICA. 



Coriuni of liemelytra distantly and coarsely punctate along the veins. 

 Head and thorax blackish fuscous ; the legs very dark testaceous. 



Length of body, 5.7"°" ; breadth of thorax, 1.3'°°'. 



Florissant. Four specimens, Nos. 772, 4639, 5114, and perhaps 7926. 



6. Parodarmistus inhibitus. 



Head very large, transverse, roundly, angulate in front, but neverthe- 

 less distinctly longer than broad, not contracted behind the eyes, which are 

 very large but not very prominent ; surface granulate throughout ;" the 

 antennae considerably more tlian half as long as the body. Thorax quad- 

 rangular, transvei'se, about twice as long as broad, scarcely tapering ante- 

 riorly, both base and apex truncate, the whole surface granulate, but nuich 

 more coarsely behind than in front. Head, thorax, and scutellum black ; 

 abdomen blackish fuscous, together with most of the corium of the lieme- 

 lytra ; the membrane fuliginous with a pallid area at the apex of the corium, 

 the veins marked in fuscous ; legs blackish fuscous. 



Length of body, 6.S""" ; breadth of thorax, LS-"-". 



Florissant. Two specimens, Nos. 5829, 8356. 



4. PROTENOR Stai. 



This genus, of which only two species are known, one from the cen- 

 tral Western States, the other from Central America, is represented at Flor- 

 issant by a single species, which seems to agree tolerably well generically 

 with these. It is to be noticed, however, that, as frequently seems to be the 

 case with fossil forms, the antennaj are distinctly shorter than in the exist- 

 ing types, and that the fossil species agrees better in the structure of the 

 head and in general size with the Central American than with the Hlinois 

 species; it is much smaller and stouter than the Illinois species. 



Protenor imbecillis. 



PI. 26, Fig. S. 



The head of the single specimen known is somewhat obscure, but is 

 half as long again as broad, with straight and parallel sides and rather 

 bluntly angulate front, the portion in front of the antennae being equian- 

 gular; the whole considerably longer than the thorax, and not constricted 



