PSEUDAGENIA. 107 



Type, p. carhonaria. Scop. 



Range. Over both hemispheres. 



General form of the insect long and slender, with long un- 

 armed legs, the fore tarsi not ciliated, and the spines on the 

 tibiae and tarsi small and inconspicuous, or altogether wanting ; 

 wings with three cubital cells, the 3rd always much larger than 

 the 2nd ; abdomen shortly petiolate, the 2ud ventral segment 

 with a transverse furrow. 



Fig. 25. — Pseudagenia clypeata, 2 . \. 



The insects belonging to this genus, so far as known, build little 

 clay cells, like Sceliphron and Eumenes, and fill them with spiders, 

 as provision for the larvae. 



Keij to the Species. 



A. Wings yellow, apex infuscate. 



a. Head, thorax, and abdomen black. 



a! . Head, thorax,and abdomen covered with 



dense glistening golden pile P. hotwsta, p. 109. 



b'. Head, thorax, and abdomen without 



golden pile ; head and thorax marked 



with yellow P. atalanta, p. 109. 



b. Head, thorax, and abdomen pale reddish 



yellow P. deceptrix, p. 110. 



. Head, thorax, and basal half of abdomen [p. 110. 



red, apical half of abdomen black P. frauenfeldiana, 



li. Wings fuscous or fusco-hyaline. 



a. Fore wing fuscous, hind wing hyaline. 



a . Fore wing entirely dark fuscous with a 



purple effulgence P. artemis, p. 111. 



b'. Fore wing hyaline at base, dark fuscous 



for apical two-thirds P. dana'e, p. 111. 



b. Both wiugs entirely fuscous. 

 a'. Wings light fusco-hyaline. 



a'". Head, thorax, and abdomen black 



with a blue tint in certain lights . . P. arid, p. 112. 

 P. Head and thorax black, abdomen red. 

 a^. Median segment lightly trans- 

 versely striate, not or scarcely 

 sulcate down the middle P. conoolor, p. 112. 



