MATERIALS FOR A FAUNA CANADENSIS. 487 



anteriorly pointed with luteous, and with a broad luteous sub-apical 

 band. Length 27 millim. ; alar expanse 50 millim. Kova Scotia. 



N. OCELLIGEEA, Walker. — Black, with pale hair ; tibiae piceous ; 

 wings testaceous, the anterior ones reticulated and dotted with black. 

 Length 26 millim. ; alar expanse 28 millim. JS^ova Scotia. 



N. SEMiFASCiATA (Sfl' /. — Tulvous ; antennae annulated with fus- 

 cous, the apex fulvous ; head fuscous ; dorsum of the mesothorax 

 each side black ; head and thorax partly ciliated with black ; feet 

 with brown spines; wings fulvous, the veins obscurer, the aiterior 

 ones transversely flecked with brownish-black, a small basal spot, 

 and an abrupt medial streak at the posterior margin, brownish black, 

 the disk with two yellowish points ; posterior wings with the apical 

 margin hardly irrorated with fuscous, having a short fuscous sub- 

 apical band. 



Male : Having the dorsal lamina elongated, the sides involuted, 

 the apex with two long spines ; superior appendages larger than the 

 lamina ; ventral lamina 4-toothed. 



Female : Ventral lamina shining, the base brownish-black, very 

 much narrower at the apex, recurved, bifid. Length 23-28 millim. ; 

 alar expanse 44-52 millim. 



St. Martin's Falls, Albany Kiver, Hudson's Bay (Barnston), 

 Nova Scotia, Ohio, Pennsylvania. Massachusetts, New York, &c. 



N. POSTiCA, Walker. — Fulvous ; antennae annulated with fuscous, 

 the apex fulvous ; head and thorax fuscous, with fuscous hair ; feet 

 with fulvous spines ; wings fulvous, veins of the same colour ; the 

 anterior ones transversely irrorated with fuscous, a small basal spot 

 and an abrupt streak upon the middle of the posterior margin, fus- 

 cous ; disk, with two whitish points ; hind wings with an angulated, 

 subapical, fuscous band. 



Male : Having the dorsal lamina elongated, the apex narrower, in- 

 cised; su[)erior appendages with a longer lamina; the ventral la- 

 mina bidentate. 



Female : Ventral lamina shining, middle of the base brownish- 

 black, each side ciliated with fulvous, the apex narrow, recurved, en- 

 tire ; each side with a rather long anal palpus. Length 28 millim, ; 

 alar expanse 52 millim. 



Massachussetts, Pennsylvania, and North Ked Eiver, llupert's 

 Land ; also Southward. 



