EPHE MERINO. 



30. BAETIS VICAKIA, Mas. 



Ferruginea ; antenna nigrce ; thoracis latera flavo notata ; abdo- 

 men fusco fasciatum ; setce testaccce, subannulatce , corpore 

 plus duplo Longiores ; pedes testacei, femoribus nigro bifasci- 

 atis ; alee hyalince, anticce venis costalibus et discalibus fusco 

 nebuiosis. 



Male. Ferruginous : antennae black : thorax with pale yellow 

 marks on each side : abdomen hardly twice the length of the tho- 

 rax ; a brown band on each segment : seta? dull testaceous, darker 

 on the sutures of the joints, more than twice the length of the body : 

 legs testaceous, slender ; a broad brown band on the middle, and a 

 narrower one on the tip of each femur: fore-legs longer and darker: 

 wings hyaline ; veins of the fore-wings brown, indistinctly clouded 

 along the fore border, and in the disk : fore border pale brown for 

 one- third of the length from the tip. Length of the body 6 lines ; 

 of the setae 15 lines; of the wings 15 lines. 



a. North America? Presented by the Entomological Club. 



31. BAETIS BASALTS, Mas. 



Nigro-picea, longa, gracilis ; abdomen testaceo fasciatum ; setce 

 albidce, nigro annulate, corpore fere duplo longiores ; alee 

 anticce limpidce, venis costalibus fusco nebuiosis, posticce fusc& 

 apice limpidce. 



Pitchy black, long, slender: abdomen with dull testaceous 

 bands on the sutures of the segments, more than twice the length of 

 the thorax : tentacula whitish : setae whitish with blackish bauds 

 on the sutures of the joints, nearly twice the length of the body : 

 fore-wings limpid ; veins brown, clouded along the fore border with 

 black, which forms a spot about the middle of the costa: hind- 

 wings brown, limpid towards the tips. Length of the body 6 lines ; 

 of the setae 1 1 lines ; of the wings 14 lines. 



a. Lake Winipeg. Presented by Sir John Richardson. 



3c3 



