LIST OF NEUROPTEKA IN BEITISH MUSEUM. 265 



plerumque pallidis, hamm costalibus, subcostalibus, multis apicem 

 versus dimidioque furcularum nigris. Pedes albidi. Abdomen 

 flavo-fuscum (colores mutati) ; venter ante apicem unguiculis duobus 

 elongatis armatus. (5-) Long. corp. 7"; exp. alar. 1" 11"'. 

 Hab. in Australia boreali. In collect, auct. 



Antennce not more than half the length of the wings, thickened beyond 

 the middle, very pale yellow, the apical portion greenish, slightly hairy. 

 Head yellow, the vertex corrugated in the middle and elevated 

 posteriorly, a slightly raised flattened plate at the base of each 

 antenna ; front with a slightly raised flat transverse space below the 

 antennae, beyond this space irregularly corrugated ; palpi with broad 

 fuliginous rings. Prothorax about twice as long as broad, scarcely 

 narrower in front, the sides nearly parallel, yellow, with obscure lateral 

 fuscous lines; the anterior margin rounded; at about a third of its 

 length anteriorly is a transverse impression ; the hinder portion bears 

 a large concave space the edges of which are raised, the anterior edge 

 being strongly rounded, and divided in the middle by a raised longi- 

 tudinal line. Meso- and metathorax yellow with a greenish tinge, un- 

 ' spotted, but with several impressed lines and spaces. Wings elongate, 

 acute, the costa of the anterior very slightly rounded ; hyaline, the 

 pterostigma whitish; anterior wings with all the longitudinal veins 

 whitish, almost all the transverse veinlets and marginal forks black, 

 in the subcostal area are several transverse veinlets, those towards the 

 base starting from the subcosta but not reaching the radius, and 

 hence appearing as black dots ; a small black spot at the base of the 

 radius : posterior wings with the greater part of the veins and veinlets 

 pale, the costal veinlets, many towards the apex, and the apical fur- 

 cations (for the most part only in their basal half) black. The mar- 

 gins and all the veins and veinlets are strongly hairy in all the wings. 

 Legs whitish, hairy, the tarsi somewhat obscure, and the claws 

 brownish. Abdomen yellowish fuscous (the colours altered) slender, 

 dilated and laterally compressed at the apex, clothed with fine hairs, 

 the apex obtuse and fringed with long hairs ; the seventh abdominal 

 segment beneath is furnished with an extraordinary appendage, con- 

 sisting of a strong tubercle from the lower edge of which proceed two 

 long bent and incurvated needle-shaped claws reaching nearly to the 

 extremity of the abdomen. 

 I possess one example, whicli I have little doubt is a female, 

 from Northern Australia ; the wings are broader and more acute 

 than in sejunctus, and the prothorax is differently formed. 



G-enus Osmtlus, p. 231. 



O. CHRYSOPS, p. 232, 1 = 0. maculatus, F. I adopt the Fabrician 

 name, because the Linnean description of Hemerobius chrysops cannot 

 apply to this insect, although in his collection it bears the label 



