344 VROCEEDTXOS OF THE NATIONAL MUSEUM. vol. xxxi. 



grooves; sparsely clothed with short, whitish hairs; mesosternum 

 coarsely, sparsely punctured, glistening, and with a few, short, trans- 

 verse stride between the mesocoxa*; petiole straight, brownish black, 

 finely, not closely punctured, longer than the posterior coxai and 

 bearing short, whitish hairs. 



Ahdomen. — Ferruginous, sometimes shaded with darker; pointed 

 behind, elongate, less so anteriorly but not rounded, rising (juite high 

 above the petiole but not at right angles with it; a])ove, rather glis- 

 tening, with traces of whitish sericeous at the side; stigma of the first 

 segment l)ehind the middle; with a few scattered punctures, most 

 abundant on the last two plates where there are also a few whitish 

 hairs; margin of last plate rounded behind; beneath, similar to above, 

 the hinder margins of the fourth and fifth plates slightly emarginate, 

 however; terminal plate conical, with a narrow, rounded tip. 



Wmgs. — Almost hyaline, the front pair faintly fuliginous; the 

 larger veins dark, the smaller ones light brown: fore wing; third 

 cubital cell quite long, extending about as far out toward the wing 

 margin as the outer end of tiie radial cell; first and second transverse 

 cubital veins running al)out parallel: hind wing; transverse median 

 vein straight or almost so, making a right angle or slightly less with 

 the medial vein; discoidal vein not interstitial; cul)ital vein not devel- 

 oped be3"ond the transverse cubital which joins the radial almost at a 

 right angle; teguhe dull brow^nish, lighter at the edges, somewhat 

 whitish pubescent anteriorly. 



Leys. — Black, but with a brownish ferruginous tinge, somewhat 

 glistening, generally more or less whitish sericeous; front and hind 

 pair of coxai so nmch so as to be almost pubescent; fore coxjb with 

 coarse, scattered punctures and rather fine hairs, the punctures absent 

 from the other coxse; fore trochanters with a very few punctures and 

 hairs, middle pair with fewer, hind pair with almost none; fore 

 femora with a slight groove beneath, along which is a row of short, 

 brownish hairs; fore tibia? short, rather stout, with numerous spines; 

 fore tarsi strongly white-sericeous above; the fore metatarsus with 

 seven (sometimes six) long com!) teeth alternating with verj^ short 

 spines; claws ferruginous, with five teeth; middle femora with a very 

 few fine punctures and short hairs; middle tlbiiv minutely punctured, 

 witii numerous spines; hind femora with a few scattered, minute 

 punctures and fine hairs beneath; posterior surface of hind tibijB 

 densely l)rownish sericeous; the tibial s|)ine with coarse, spaced blunt 

 teeth on its outer half. 



Male. — Difl'ers as follows: Bod}- generallv more hairy; with coarser 

 punctures on the sides of the thorax; al)domtMi quite compressed lat- 

 erl}', somewhat crescentic in outline when viewed from the side; first 

 and second segments of the filament taken together not equal in 

 length to the third; fourth and fifth ventral abdominal plates silky 



