T. D. A. Cocker ell — Descriptions of Tertiary Insects. 229 



Legs long and slender; anterior femur 4f, tibia 5-|, tarsus 

 6imm. m iddle femur 5£, tibia 6 mm ; hind femur 6, tibia 6f mm . 



Wings T inm long : a small dark spot on costa 2f mm from base ; 

 another 4 mm from base ; stigmal spot large, as in D. stigmosa. 

 Venation not well preserved, but the subcosta (mediastinal of 

 Loew) and the four apical veins are all quite normal. 



Allied to D. stigmosa Scudder, but distinguished by the 

 details of the measurements, and especially by the two costal 

 spots. 



Red shale of Green River, Wyoming, in Yale University 

 Museum. Collector unknown. One specimen, with reverse. 



(5) A Pompilid Wasp from Florissant. 



In all, four fossil Pompilida? have been described, three from 

 Florissant, and one from (Eningen. One or two others, not 

 named, are said to occur in Baltic amber. The Florissant 

 species have been referred to Hemipogonius (2) and Ceropal- 

 ites (1) ; an additional species, now described, belongs to 

 Agenia. 



Fig. 3. — Agenia saxigena, x 2. 



Agenia saxigena sp. nov. 



Length about 11 ^ mm ; rather stout, width of abdomen about 

 Z^ mm ; anterior wing 9f mm long ; body and femora black, tibia? 

 and tarsi ferruginous ; wings faintly dusky, with a dark cloud 

 in the marginal cell and below, and another in lower basal 

 part of first discoidal and below ; venation ferruginous ; 

 antenna? more or less curled apically ; legs not at all spinose ; 

 stigma fairly large ; marginal cell lanceolate, ending in a point 



