140 MANDIBULATA. — NEUROPTERA. 



Pale reddish ochreous : eyes and ocelli deep black ; collar and abdomen 

 immaculate ; legs pale ochreous green ; antennae the same, dusky at the 

 apex ; caudal setae pale ; wings hyaline, limpid, with an almost evanescent 

 tinge of yellowish-green, the nervures pale ochreous-green. 



Found near London, in June. 



Genus XXIX.—NEMOURA, Latreille. 



AntenncB setaceous, remote, placed before the eyes, and composed of 

 numerous very short cylindric articulations, the basal one being largest : 

 palpi filiform, with the terminal joint oval-cylindric : labrum distinct, semi- 

 circular or subquadrate, rather broader than long, rounded anteriorly and 

 on the sides ; head rather broad, nearly vertical, not depressed : eyes small, 

 lateral : collar transverse-quadrate : wings incumbent during repose, some- 

 what folded round the body, and giving it a cylindric form : abdomen with 

 two extremely short tubercular processes at the apex, but destitute of setae : 

 legs simple : femora slightly compressed : tarsi with all the joints simple, 

 and of nearly equal length. 



These insects may be readily distinguished from those of the fore- 

 going genera by wanting the elongated reticulated setae at the apex 

 of the abdomen, without taking other characters into consideration : 

 from the genus Leuctra they differ in having the anterior wings more 

 rounded, and furnished with a plexus of nervures towards the apex, 

 resembling a Greek % ; and the nervures themselves are differently 

 disposed. In common with the other genera of this family, these 

 insects are found in damp and marshy places, during the summer. 



A. Anterior wings with a x-like plexus of nervures towards the apex ; the 

 hinder margin with six longitudinal nerves. 



Sp. 1. nebulosa. Fusco-nigra, collaris later ibus rufo-piceis, pedibus pallide 

 rufesceniibus femoribus posticis annulo obscuro, alis cinereis nervis J'uscis' 

 (Long. Corp. 2^—Sk lin.; Exp. Alar. 9— 10§ lin.) 



Ph. nebulosa. Linne? — Steph, Catal. 315. No. 3545. 



Fuscous-black : sides of the collar somewhat pitchy-red ; legs pale reddish, 



the hinder femora with an obscure blackish ring towards the apex ; wings 



dull ashy-brown, with darker nervures. 

 This insect is the Ne. nebulosa of Latreille, but I suspect not of Linnaeus ; 



his insect I believe to be Ne. variegata. 



Abundant in damp hedges within the metropolitan district, espe- 

 cially in Robin Hood lane, near Coombe wood : found also, not un- 

 commonly, in the north of England, and in Scotland, and also in the 

 New Forest, in June. 



