532 



PSYCHE. 



[October 1S93. 



spot at the end of the cell, succeeded by a 

 band of transverse limbal markings, lunulate 

 in form, whitish, and margined externally 

 and internally by dark brown, succeeded by 

 an interrupted submarginal series of obscure 

 blackish spots. The secondaries, which are 

 pale ashen like the primaries, have a large 

 translucent circular spot at the end of the cell, 

 and the lines of the primaries are continued 

 upon the secondaries. On the under side the 

 markings of the upper side reappear, but far 

 more sharply defined and darker in color. 

 Both wings, furthermore, are heavily clouded 

 on the median area with dark slaty-gray. 



$. The female does not differ materially 

 from the male, except in the much greater 

 size and the corresponding modifications of 

 outline and the much greater obscurity of 

 the transverse markings. Expanse, $, 65 

 mm. ; ? , 95 mm. 



The female in my possession was reared 

 from a cocoon about three inches in length 

 and three-fourths of an inch in diameter, 

 which was found attached to the trunk of a 

 tree. The cocoon is whitish in color, the 

 exterior compacted of silk mingled with the 

 whitish hair and the short but sharp blackish 

 spines of the larva. The inner layers of the 

 cocoon are hard and coriaceous. The chry- 

 salis is relatively long, black, smooth, and 

 without a cremaster. The insect may be 

 distinguished from G. Gerstdckerii by its 

 uniformly cinereous color and the absence 

 of the broad mesial band of dark brown which 

 characterizes the latter species. 



Lasiocampa, Schrank. 



176. L. viridescens, sp. nov. $ ■ Culmen 

 of antennae pale yellow ; setae dark brown ; 

 body olive-green throughout with the end of 

 the abdomen tufted with reddish hair. Upper 

 side: Primaries olive-green clouded with 

 reddish-brown on the costa and along the 

 outer margin, traversed by a sub-basal and 

 geminate transverse median brown line. 

 There is at the end of the cell a small linear 



brown discal dot. The outer third of the 

 wing is ornamented by an irregularly curved 

 and denticulate series of lilacine-brown mark- 

 ings, which are immediately followed exter- 

 nally by a pale green band conformed to the 

 outer margin of these darker markings. The 

 secondaries are brown, darker at the base, 

 where they are heavily clothed with hair. 

 The fringes on the secondaries are narrow 

 and uniformly pure white. On the under 

 side both wings are brown laved on the 

 costae with pinkish. The marks of the 

 upper surface of the primaries reappear indis- 

 tinctly on the lower side. The secondaries 

 have a dark pinkish-brown incomplete trans- 

 verse line running from the costa and ter- 

 minating about the middle of the cell. The 

 outer margin is grayish-white. The fringes 

 are white as upon the upper side. Expanse, 

 43 mm. 



There is a specimen of this species un- 

 named in the collection of Mr. Herbert 

 Druce of London. 



177. L. immunda, sp. nov. £. Upper 

 side of thorax and abdomen brown, the 

 thorax somewhat hoary. The under side of 

 the body and the legs paler brown. The 

 upper side of the primaries is of the same 

 color as the thorax shading into pale hoary- 

 brown on the outer margin. There is a 

 small silvery dot at the end of the cell. The 

 primaries are crossed by obscure dark brown 

 geminate sub-basal and median transverse 

 bands. There is a submarginal series of 

 sinuous and denticulate narrow brown lines. 

 The secondaries are pale at the base, inclin- 

 ing to ferruginous, with the outer margins 

 broadly brownish-fuscous. On the under 

 side, both wings are pale brownish-fuscous; 

 both are crossed by obscure and diffuse 

 transverse median bands. 



$ . The female differs from the male in 

 having the tips of the patagia and inner 

 margin and outer angle of the primaries 

 laved with pale ochraceous. There are also 

 a few obscure whitish submarginal lines 



