LAGOA. 257 



spurs. Wings moderately broad, generally rather long. Fore 

 wings slightly convex along the costa, hardly angular at the tips, 

 oblique along the exterior border; interior angle more or less 

 rounded ; first and second inferior veins nearly contiguous. An- 

 tennae of the male deeply pectinated ; of the female, minutely. 

 Female winged. 



1. D. achatina Sm. Abb. Figured in Sm. Abb. pi. 77. 



Crested ; primaries cinereous, with a white streak before, inter- 

 sected behind with a black arc terminating in an angular white 

 point. 



Georgia. 



WALKER. 



2. D. rossii Curtis. 



Transparent gray. Fore wings with two blackish waved lines, 

 forming a fascia across the middle, with a spot between them and 

 a sinuated, abbreviated band beyond them. Hind wings cream- 

 color, ochreous along the hind border, with a broad blackish 

 margin. 



Arctic America. 



WALKEB. 



LAGOA WALKER. 



Male. Body stout, short, very pilose. Proboscis obsolete. 

 Palpi very short. Antennas deeply pectinated, rather less than 

 half the length of the body. Abdomen extending a little beyond 

 the hind wings. Legs stout, thickly clothed with long hairs ; hind 

 .tibiae with short apical spurs. Fore wings moderately broad, not 

 long, straight along the Costa, rounded at the tips ; second infe- 

 rior vein as far from the first as from the third; fourth proceeding 

 from the base of the wing. 



1. L. opercularis Sm. Abb. Figured in Sm. Abb. pi. 53. 



Male. Pale luteous. Head whitish on the vertex, brown in 

 front. Antennae white ; branches brown, with white tips. Ab- 

 domen and hind wings testaceous. Legs partly clothed with 

 17 



