ICHXEUMONID^ . 



197 



Fig. 139. 



Army-worm, is the Ichneumon ^xiraiws, which is blackish, 

 banded and spotted with yellow. 



The singular genus Grotea, established by Mr. Cresson, has 

 along and narrow thorax (Fig. 130a), and a very long and 

 petiolated abdomen (c). We have 

 taken G. angidna Cresson, the only 

 species known, from the cells of 

 Crabro in raspberry stems received 

 from Mr. 4.ugus. 



Cryptus is a genus of slender 

 form, with a long, cylindrical abdo. 

 men, which is petiolate. In the fe- 

 jnale it is oval with an exserted 

 ovipositor. Cresson figures a wdng 

 (Fig. 131) of CJ ornatipennis, a Cuban species, which has the 

 wings differently veined from the other species. Westwood 

 remarks that in Europe a species of this genus preys on the; 

 lai-vte of the Pt in idee, 



Pezomachus is usually wingless, and might at first sight read- 

 ilj^ be mistaken for an ant. The body is small, the oval abdo- 

 men petiolate, and the wings, when pres- 

 ent, are very small. The species are very 

 numerous. Gerstascker suggests that 

 some may be wingless fema-les, belong- 

 ing to winocd males of allied genera. 



The third subfamily is the Braconidm, containing those 

 genera having long multiarticulatc antennie, and with the first 

 subcostal cell separate from the first median, lying just behind 

 it. The second subcostal cell is usually 

 large, and there is only one recurrent vein. 



The genus Bracon is distinguished by the 

 deeply excavated clypeus. The fu'st sub- 

 costal cell is completely formed behind, 

 Avauting the recurrent nerve ; the second cell 

 is long, and four-sided. More than five 

 hundred species, mostly of bright, gay 

 colors, are already known. The genus Rhopcdosoma of Cres- 

 son connects Bracon and other minute genera (Braconidae) 

 with the true Ichneumons. li. Poeyi Cresson (Fig. 132) is a 



Fig. 131. 



Fisr. 1.30. 



