552 EPHEMERIN^. 



Subimago. Dull testaceous, slightly shaded with brown : an- 

 tennae black: abdomen with two interrupted brown stripes, about 

 thrice the length of the thorax : setae tawny with darker bands, very 

 hairy, a little shorter than the body : legs dark testaceous ; tibiae 

 and tarsi brown : wings grayish ; veins black, clouded with blackish 

 brown except at the tips and along the hind borders: fore-wings 

 with three or four black spots in the disk. Length of the body 9 

 lines; of the setae 7 lines; of the wings 18 lines. 



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

 by Dr. Barnston. 



14. PALINGENIA HUMERALIS. 



Testacea ; abdomen olivaceo-fuscum^ subtus piceo-fuscum ; setce 

 pubescentes ; tibice anticce albidce, alee subcinerece, costa basali 

 flava apicali subfusca. 



Dull testaceous ; abdomen olive-brown above, piceous brown 

 beneath, about twice the length of the thorax : setae testaceous, pu- 

 bescent, longer ? than the body, composed of very short and nu- 

 merous joints : legs pale testaceous ; fore-tibiae whitish : wings 

 slightly gray ; veins black ; fore border of the fore-wings yellow at 

 the base, slightly tinged with brown towards the tip, its intermediate 

 veins clouded with black. Length of the body 4 lines; of the 

 wings 16 lines. 



a. New Zealand. Presented by Dr. Sinclair. 



15. PALINGENIA BICOLOR. 



Ferruginea ; pectus nigro bimaculatum ; abdomen fuscum; setce 

 testacece, pilosce, abdomine duplo longiores ; pedesflavi, antici 

 fusco-testacei, tarsis basi albidis , alee cinerece. 



Subimago. Pale ferruginous : pectus with a blackish spot on 

 each side : abdomen brown, paler beneath, full twice the length of 

 the thorax : setae testaceous, hairy, about the length of the abdo- 

 men : legs yellow : fore-legs brownish-testaceous ; tarsi whitish to- 

 wards the base : wings gray, pubescent along the hind borders ; 



