230 MANDIBULATA. TRICHOPTERA. 



with numerous longitudinal nervures, placed very closely towards the apex : 

 abdomen short, slightly compressed, obtuse at the tip ; of the female more 

 robust and obtuse : legs rather long and slender: femora simple : tibioe and 

 tarsi rather thickly armed with longish spines, the former with a pair of 

 short spurs at the apex, and the four hinder ones each with a second pair 

 below the middle. 



The insects of this genus — at least those of the first section — 

 almost too closely resemble those of the immediately preceding, the 

 neuration of the wings exactly corresponding ; but from them they 

 differ in having the body rounded and somewhat compressed, the 

 palpi slightly dissimilar, and the antennae apparently shorter : those 

 of the second section have the wings a little abbreviated and slightly 

 dilated on the inner margin towards the apex, and resemble in form 

 those of the genus Chaetopteryx, from which, however, they are 

 removed by the absence of the rigid setae, with which the wings of 

 that genus are adorned. 



§ A. Anterior wings rather narrow and elongate : palpi very slightly pilose. 



Sp. 1. nervosa. Capite thorace ahdomineque supra fusco-brunneis, infra, 

 ochraceis, antennis nigricantibus, alis anticis fusco-ochraceis macula subcentrali 

 albidd, posiicis subhyalinis apice ochraceo. (Long. corp. 4 — 6 lin. ; Exp. 

 Alar. 13—15 lin.) 



Lim. nervosus. Leach MSS. — Samouelle, pi. 7. f. 3. — An. nervosa. Steph. 

 Catal. 320. No. 3662.— Ph. fusca. Pictet, p. 133. pi. x.f. I. 



Head, thorax, and abdomen dusky-brown above, tawny-ochreous beneath ; 

 antennae blackish; anterior wings ochreous-brown, the nervures dark- 

 brown, the margins, especially the hinder one, dusky-brown, and towards 

 the centre of the disc a lunate whitish spot, and one or two at the base of 

 the 2nd or 3rd marginal areolet; posterior wings somewhat transparent, 

 their apex tinged with ochreous-brown ; legs ochreous, with the tarsi 

 brown. 



Larva with the head and three following segments blackish-brown, the three 

 first adorned with numerous regular blackish markings, the rest of the body 

 ochreous ; legs ochreous, spotted with black. 



Abundant at Hertford, and in other places within the metropolitan 

 district, towards the end of August and beginning of September : 

 found also near Dover and Ramsgate, in the New Forest, and in 

 Scotland. 



Sp. 2. lurida. Supra ochraceo-brunnea, infra lurido-ochracea, antennis brunneis, 

 alis anticis lurido-ochraceis, macula, obsoleta albidl, posticis hyalinis apice 

 lurido. (Long. corp. 5 — 7 lin.; Exp. Alar, ll — 16 lin.) 



Ana. lurida. Steph. Catal 320. No. 3663. 



