118 MANDIBULATA. HYMENOl'TEKA. 



Genus XXXVI.— BRACHYGASTER, Leach. 



AnienncE approximating^ slightJy thickened towards the apex^ 13-jointed, basal 

 joint longest, a little shortest at the apex, 2nd minute, 3rd not much longer, 

 the remainder gradually diminishing in length: head subglobose, transverse 

 above : eyes not prominent : thorax glabrous : wings short, anterior with the 

 discoida! areolets and apical nervures obliterated : abdomen 3-articulate, 



abdomen very short, compressed, consisting of 4 segments, arising from an 

 elongate very distinct peduncle, which is inserted immediately below the 

 scutellum : ovipositor not exserted : -wings moderate ; anterior with 2 or 3 

 distinct areolets on the disc, and the apical nervures conspicuous, with 1 

 marginal areolet : legs elongate : tibiae not clavate, with a pair of spurs at 

 the apex. 

 From Brachygaster these insects differ, as pointed out by Latreille, manifestly 

 by having the anterior wings furnished with distinct areolets on the disc, 

 and 1 large marginal one, besides having the nervures continued nearly to 

 the apex : the antenna are of a different form, and the proportions of the 

 joints dissimilar, as well as those of the palpi: the Evaniae seem destined to 

 keep within bounds the true Blattse, and as I believe that genus of insects 

 not to be an aboriginal native, their parasites certainly cannot be ; I there- 

 fore place the species (of both which I possess English examples) at the 

 foot of the page, in accordance with my usual plan. 



Sp. 1. appendigaster. Toto atra, corpore pube canesceide tenuissi?ne fec/o.(Long. 



Corp. 3§lin.; Exp. Alar. 6^ — 7 lin.) 

 Sp. appendigaster. Linne. — Donovan, v. 13. pi. 329. — Ev. appendigaster. 



Steph. Catal. 313. No. 4003. 

 Entirely deep black, very de'icately clothed with an ashy pile ; thorax deeply 



punctured ; abdomen glabrous and very glossy ; legs and antennae black j 



wings with a dark stigma. 

 I possess a single specimen of this insect, which was taken in London. 



Sp. 2. flavicornis. Nigra, tibiis 4 anticis tarsisque omnibus obscure ritjis, alartim 

 squamis geiiiculis posticis antennisque lastce riifis. (Long. corp. 3^ lin. ; Exp. 

 Alar. 6§lin.) 



Ev. flavicornis. Curtis ?— Steph. Nomen. 2d edit. col. 131. 



Black, with an ashy pile ; anteinise and wing scales light red ; 4 anterior tibiae 

 dull red, lighter at the base; tarsi also dull red, the hinder pair somewhat 

 pitchy, and the apex of the posterior femora and base of the tibiae also red, 

 the rest of the tibite pitchy; thorax deeply punctured; abdomen glabrous 

 beneath ; wings fuscescent, with the stigma dark. 



I have a pair of this species, which was taken, along with others now in the 

 British Musouni, at Bristol. 



