564 EPHEMERIN^E. 



legs whitish, rather stout ; a pale brownish band on the middle and 

 another at the tip of each femur: fore-legs long: wings limpid ; 

 veins tawny : fore border of the fore-wing with a slight tawny tinge 

 towards the tip. Length of the body 4 lines ; of the setae 12 lines ; 

 of the wings 12 lines. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 Dr. Barnston. 



28. BAETIS ANGULATA, Mas. 



Ferruginea, testaceo varia; abdominis discum piceum ; setcefuscce, 

 testaceo annulatce, corpore plus duplo longiores ; pedes testacei, 

 antici picei ; alee limpidce, anticce ad costain fuscce, posticce 

 fusco submarginatce. 



Male. Ferruginous, partly testaceous beneath : disk of the 

 head tawny in front : mesothorax and metathorax testaceous : ab- 

 domen less than twice the length of the thorax ; disk above piceous : 

 setae brown with distinct testaceous bands, more than twice the 

 length of the body: legs testaceous: fore-legs piceous: wings 

 limpid ; veins black ; transverse veins numerous and strongly 

 marked : fore border of the fore-wings brown : hind-wings slightly 

 tinged with brown along the hind border. Length of the body 9 

 lines; of the seta3 23 lines; of the wings 20 lines. 



a. Canada. Presented by Dr. Barnston. 



29. BAETIS RE M OTA. 



Picea, ferrugineo varia ; setce testacece, corpore multo longiores ; 

 pedes testacei, antici picei longissimi ; alee limpidcz, anticce 

 longce, costa basi lurida apice fusca. 



Piceous, partly ferruginous on each side and beneath : setae 

 dull testaceous, much longer than the body : legs testaceous, slen- 

 der : fore-legs piceous, very long : wings limpid ; veins black : 

 fore-wings long, with an indistinct tinge on the fore border, which 

 is lurid at the base and brown towards the tip. Length of the 

 wings 16 lines, 

 a. New Zealand. Presented by Dr. Sinclair. 



