^°^ HYMENOPTERA. 



!?pf a'^i'^'^^^^ ^^™'?^ ''°^" tubercles ; wings dark fuscous, with a 

 metallic-green iridescence. Abdomen smooth and shining im- 

 punctate. ""^&» 



ant^Pnlt ^1^^\^ lines.-Differs in having the face, mandibles, 

 antennae, and anterior legs obscure ferruginous; the thorax and 

 wings as m the other sex. 



Hab. West Africa (Whydah). 



22. Mygnimia insignis. g ^ 

 Female. Length 12 lines.-Black : head pale ferruginous or 



the latter slightly spmose, the posterior tibi^ finely serrated 

 the metathorax truncate ; the wings deep fuscous, with a bril- 

 hant violet mdescence. Abdomen black, the apex ferruginous. 

 Hab. West Africa. 



This species is of precisely the same form as M. perplexa 

 and both scarcely appear to belong to the genus; but thi onl^ 

 difference, that of having the metathorax truncate and the ^b^ 

 domen sessile, is of frequent occurrence in the PompiUdcB. 



23. Mygnimia imperialis. g 1^ 



Male. Length 14 hnes.-Black : the face below the insertion 

 of the antennae, the scape in front, the clypeus labrum ™ln^ 

 and mandibles, ferruginoL, the tips oi the laTerWack Tho^x"! 



metltL ^ ^f "^"'^ ^'^^ '^^"^* ^^^^^ ^^l^^ty pubescence the 

 metathorax having an elevated longitudinal carina down the 

 ^ntre the posterior lateral angles produced and forming Tbtuse 

 tubercles; very finely transversely striate ; wings black, wi ha 

 rich purple iridescence, an obscure hyahne spot at the ba e of 



and prtei;""''' "" ' if '^ 'T ^^-g-o-^ the mtermeX^e 

 ^1..? ft! ^7 ""^ ^' well as the posterior femora above, fus- 



b^ kigl^tZm^^^^^^ ^^^^' ^^^"^^ ^^^^^ P"^— ^ ^^^ 

 Hab. West Africa. 



24. Mygnimia Meg^ra. 



Male. Length 12 lines.-Black : the clypeus rounded at its 

 antenor margin; the thorax clothed with short black pubescence, 

 that on the metathorax is long and thinly scattered ; the meta- 

 thorax convex above, transversely striated and truncate behind, 

 the truncation smooth and shining ; wings black, having a bril^ 



