234 HEMEROBIDES. 



a. United States. Presented by the Entomological Club. 

 b. ? From Mr. Milne's collection. 



4. OSMYLUS TENUIS. 



Testaceus ; caput flavo varium ; prothorax lineuris, albidus, fusco 

 strigatus ; abdominis dorsum piceum ; alee subcinerece, angustce, 

 anticarum venis fusco albidoque alternatimfasciatis. 



Subcostal veinlets much like those of O. chrysops ; veinlets of 

 the second sector more numerous ; areolets in the disk more nume- 

 rous, especially in the hind-wings, more regular in form, generally 

 rectangular; marginal areolets much more numerous. Testaceous: 

 head yellow on each side by the eyes, and with some yellow spots in 

 front : antennae pale testaceous, very pubescent : prothorax linear, 

 whitish, with some brownish streaks; its length about twice its 

 breadth : abdomen pitchy above except at the tip : legs pale testa- 

 ceous : wings slightly gray, narrow ; stigma a little darker ; veins 

 of the fore-wings alternately brown and whitish, of the hind-wings 

 testaceous. Length of the body 4j lines ; of the wings 18 lines. 



a, b. Van Dieman's Land. From Dr. Hooker's collection, 

 c. Adelaide. From Mr. Stevens' collection. 



5. OSMYLUS CONSPERSUS. 



Testaceus ; caput fusco maculatum ; prothorax linearis^ nigro 

 6-maculatus ; thoracis discus piceus, flavo bimaculatus ; ab- 

 domen piceum ; alee sublirnpidce, marginibus apice flavo macu- 

 lalis, venis fusco albidoque alternatim fasciatis, transversis 

 fusco nebulosis. 



Veins of the wings much like those of O. chrysops ; areolets of 

 the disk more regular in form especially in the fore-wings, and 

 mostly quadrilateral. Testaceous: head with some brown spots on 

 the vertex : antennae pale testaceous, pubescent : prothorax linear, 

 with six black spots, not longer than broad : mesothorax and meta- 

 thorax pitchy with a yellow spot on each disk : abdomen pitchy : 

 legs pale testaceous : wings almost limpid ; some yellowish marks 

 on the borders towards the tips ; veins alternately brown and 

 whitish ; transverse veins clouded with brown, of which there are 

 a few spots in the disk and along the fore border. Length of the 

 body 4 lines ; of the wings 16 lines. 



a. East Indies. From Archdeacon Clerk's collection. 



