234) MANDIBULATA. TRICHOFTEEA. 



Genus XXXV.— NEURONIA, Leach. 



Antennas longer than the body, but shorter than the wings, very stout, pubes- 

 cent : palpi very pubescent and pilose; maxillary longest, 5-jointed, the 

 three basal joints short, the two apical ones longer, stout, ovate ; labial 

 3-articulate, the basal joints slender, the terminal one robust, ovate : head 

 broad, transverse, with a tuft of hair between the antennas : ei/es slightly 

 prominent : collar pilose : thorax ample, subovate : wings very slightly 

 pilose, shining, and hyaline, furnished with coarse and numerous nervures, 

 anterior with the costal one in place of the stigma, suddenly curved; at the 

 apes of the disc is a short ovate areolet ; posterior smaller, rounded on the 

 hinder margin : bod>/ robust, cylindric, of the male with the apex broadly 

 expanded, of the female larger and obtuse : legs rather slender and elongate : 

 tibi{B not armed with spines, but all furnished at the apex with a pair of long 

 spurs, the four hinder ones also with a pair below the middle : tarsi also 

 spineless. 



This genus — the last of the order — is rendered conspicuous by 

 the remarkable transparency of its wings, which are very slightly 

 pilose, but are furnished with strong and very distinct nervures, of 

 which the second longitudinal one is abruptly waved towards the 

 apex, in place of the usual stigma, as in the genera Phryganea and 

 Halesus ; but from these genera the structure and form of the wings, 

 exclusively of the diversity in the palpi, and their stout, short 

 antennae, remove them. 



Sp. 1. fusca. Plate xxxiv. f. 2. — JVigricante-fusca, tibiis posticis ochraceis, 

 alis subochraceo-fuscescentibus, nervis piceis. (Long. corp. 5 — 7 lin. ; Exp. 

 Alar. 10—15 lin.) 



Phry. fuHca. Linne? — Neu. fusca. Steph. Catal. 323. No. 3733. 



Blackish-brown : collar clothed with griseous hairs ; anterior wings of a dark 

 uniform fuscous, with an ochreous tinge and pitchy nervures ; posterior 

 rather paler and more transparent, especially at the base; legs blackish- 

 brown, with the hinder tibiae bright yellowish-ochreous. 



This appears to be a scarce insect : it is met with occasionally 

 within the metropolitan district in the summer. 



