MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPIDyE. 293 



Anteuiue inserted Just above the clypens; in 9 8 jointed, the scape 

 subcliiviite, lengthened, exteadinj^ far above the vertex; pedicel long, 

 thicker than the first funichir joint; funichir Joints subeqnal, gradually 

 becoming wider and shorter, the first the longest and slenderest; club 

 thicker than the last Joint of funide and as long as the two ])receding 

 Joints together, nnjointcd, but un<ler a higli power 3 indistinct Joints 

 can be detected; in S 10-Joiuted, verticillate from the third Joint; ped- 

 icel short and thick; first flagellar Joint as long as the pedicel but 

 thinner and obconic; second nearly twice the length of first, thicker 

 at apex than at base; third to last cylindrical and subeqnal; last Joint 

 elongate, conical. 



Thorax robust, subovoid, convex, the mesonotum broader than long 

 with two delicate gnjoved lines; scutelluni large, semi<'ircular, con- 

 vex, separated from the mesonotum by a transverse grooved line at 

 base; metathorax exceedingly short, abrupt. 



Wings broad, ciliated, veinless, although a trace of the submarginal 

 vein can be detected when the wing is viewed through transmitted light. 



Abdomen broadly ovate or subcordate, sessile, about as long as the 

 thorax, the first segment very short, transverse; the second very large, 

 occupying most of the surface. 



Legs rather long. The femora clavate, tibi;e subclavate, tarsi slen- 

 der, 5 Jointe<l, longer than their tibiu', the basal Joint of hind tarsi 2J 

 times as long as the second. 



Amitus aleurodinis H:il<l. 



(PI. XII, Fig. 8, 9.) 



AmitiisnlnirodhiiHUiM., Sil. .Tour. Sci.. 2(1 ser., ix, i>. 110, 1S."(); Cr., Syn., Hyin., 



p. 250, 

 ElaptuH alearodis Forbes, 14th III. Rep., 18Hi. p. 110, PI. n, Fi<i. 6, 9 

 .-l/rtjjfKS o/eMrof/is Or., Syn. Hym., p. 250. 



(J 9. LengihO.75 to 1™". Polished black; legs variable in color, 

 most frequently l)rownish yellow or pale rufons, the coxie and femora 

 sometimes dusky or blackish; sometimes only the hind femora and 

 coxa', black. 



Antenna^ in 9 8-Jointed, as long as the body, terminating in an iin- 

 Jointed club, brownisli yellow, the club brown; the pedicel and first 

 funichir Joint long, the former a little the longer and thicker, the follow- 

 ing joints to dnb subeqnal in length but gradually thickened; in $ 10 

 Jointed, yellow, the flagellar joints with verticillate hairs. Thorax with 

 2 delicate furrows. Metapleura pubescent. Wings hyaline, ciliated. 



Abdomen broad, about as long as the thorax; the fii U segment very 

 short rugose; the second, except foveohe at base, and the following, 

 smooth, polished. 



Habitat. — Pennsylvania, District of (\>lumbia, and Illinois. 



Types in Coll. American Entomological Society. 



The types 1 have seen ; they are still preserved in tlie Coll. Ameri- 

 can Entomological Society, although in poor condition. The National 



