7a 



GlaUCOPTEKYX SABINIAEIA Packard. Plate 8, fig. 20. 

 Paycliopliora Sabinii Curtis, Appendix Ross's -M Voyage, 73, pi. A, iijj. 7, 7«, 1S3j. 



7 cf and 1 9. — While this species belongs to a subgenus of Glau- 

 copteryx, differing in the venation, in the pectinated antenna', and hairy, 

 stouter, shorter abdomen, in the general shape of the wings it closely 

 approaches G.polata, but still differs in the straighter costa of the fore wings, 

 which are also a little narrower than in polata, and the head is a little fuller 

 in front. Antennae with short, slender pectinations, as long as the antennae 

 arc thick, also thickly ciliated beneath. Body and wings of a peculiar silk 

 sable-brown ; fore wings sable-brown, frosted over with gray scales, darker 

 at base; the dark portion (basal line) bent outward on the subcostal vein ; 

 a broad, median, darker band, no wider on the costa than inner edge of the 

 wing, with a large projection outward opposite the discal dot, and below 

 scalloped quite regularly; a scallop in each interspace. Discal dot linear, 

 dark, obscure. No other lines or markings on the wing. Hind wings (in my 

 eight specimens) immaculate, concolorous with the fore wings, being sable- 

 brown, without any gray scales, and with no lines. (In Curtis's figure, two 

 curved lines beyond the discal dot arc represented.) Fringe uniformly sable- 

 brown, concolorous with the wings. Legs and under side of the body darker 

 than above. Abdomen very stout ; the tip broad and very hairy. 



Length of body, <? 0.40, 9, 0.31; of fore wing, <?, 0.52, 9,0.-10; 

 expanse of wings, 0.95-1.10 inches. 



Polaris Bay, North Greenland, latitude 81° 38' N. (Dr. E. Bessels, 

 scientist to the United States Polaris Expedition to the North Pole). 



This is an exceedingly interesting form, as it differs so remarkably, both 

 structurally and in coloration, from the other species. The uniform sable- 

 brown color, with the slightly darker median band on the fore wings, and 

 the pectinated and ciliated antenna 1 , and very stout, broad, hairy, tipped 

 abdomen, separates it from the other species found on this continent. 



None of the specimens collected by Dr. Bessels in Polaris Bay had the 

 two dark lines or discal dot on the hind wings, figured by Curtis in the 

 Appendix to Boss's Voyage. Five of my specimens an 4 immaculate sable- 

 brown, with no dusky band on the fore wings, and the tore wings are of a- 

 pure sable color, with a rich silken gloss; no gray scales frosting (hem over, 

 as in the more typical examples. My specimens differ so much from two 



