114 HYDROPSYCHID^. 



37. HVDHOPSYCHE ROBUSTA. 



Ferruginea ; antennis palpis pedihuRque iestaceis ; thorax piceu hi- 

 vittatus ; aLcB cinerece, anticcB irroratce. 



Ferruginous, hairy: palpi, antennae and legs testaceous : thorax 

 with a broad pitchy stripe on each side : wings gray, clothed with 

 yellowish down ; fore-wings with pale dots, which are most distinct 

 along the border ; veins brown. Length of the body 2 lines ; of the 

 wings 8 lines. 



>i, b. North America ? Presented by the Entomological Club. 



38. Hydeopsyche transversa. 



Testacea ; aniennce nigrce^ basi testacece ; abdomen nigrum, mar- 

 ginibm posticis albidis ; pedes albi ; alec albidce, anticce guitis 

 apicibusque subcinereis ad costam Jlavescentes. 



Testaceous : antennae black, very slender, testaceous towards 

 the base : abdomen black ; hind borders of the segments whitish : 

 legs white : wings whitish ; fore-wings yellowish on the fore border 

 and along some of the longitudinal veins, adorned with numerous 

 transverse pale gray marks, some of which are confluent ; tips pale 

 gray, with some whitish marks ; veins pale yellow. Length of the 

 body 3.J lines ; of the wings 12 lines. 



a, b. Georgia. From Mr. Abbot's collection. 



39. Hydeopsyche vicaria. 



Ferruginea ; corpore subtus pedibusque iestaceis ; antenna testaceor 

 nigro-hirt(B ; alee antic (B fiilvce fusco conspersa macula parva 

 rotunda discali jiavescente. 



Ferruginous, clothed with pale hairs, testaceous beneath : an- 

 tennse testaceous, partly clothed with black hairs : legs testaceous : 

 fore-wings hairy, tawny, with numerous brown marks, which are 

 most prevalent towards the tips, and with a small round pale yel- 

 lowish spot in the disk before the middle; hind-wings gray. 

 Length of the body 3^ lines ; of the wings 12 lines. 



a. Venezuela. From Mr. Dyson's collection. 



