628 WILLIAM T. M. FORBES 



89. LAODAMIA Ragonot 

 (Pinipestis, in part) 



Venation (fig. 380) and habitus practically as in the genus Dioryctria; Cu 2 of 

 hind wing just about at one-third, discooellular vein separated by a distinct space 

 from lower side of cell, approaching it on a long slant. Male antennae (fig. 390) 

 and palpi about as in Salebria, but male palpi longer, and shaft of antennas more 

 laminate than in our Salebrias; front rougher. 



1. L. fusca Haworth. Blackish, lightly powdered with gray except on veins 

 and lines; lines gray, normal, inconspicuous; antemedial zigzag. Discal dots 

 large, black. 28 mm. 



In variety frigidella Packard, the ground is gray, black only along the lines. 



Locally common in July and August, especially on burnt-over heaths. The larva 

 eats Vaccinium and willow. 



Arctic America, south to Northern New Jersey and British Columbia. New 

 York: Waterville, Rochester Junction, Ithaca. 



90. ELASMOPALPUS Blanchard 



Hind wing (fig. 383) with Cu-j arising about a third way out on the wing, 

 the discocellular vein well beyond it, and well separated from the lower side of 

 the cell. Palpi as in Salebria, more oblique and straighter, with well-developed 

 plume. Male antennae strongly flattened, with hardly any notch, but a well- 

 marked scale tuft not reaching the base of the shaft. 



Key to the species 

 1. Fore wing with raised scales before the antemedial line; gray, with a 



blackish tuft 1. decoloralis. 



1. Fore wing smoothly scaled. 



2. Markings distinct, normal, gray 2. petrellus. 



2. Markings strigose and broken; or obsolete; male light wood-brown; female 

 dark 3. lignosellus. 



1. E. decoloralis Walker. Pale gray with a paler postmedial line; antemedial 

 indicated by a few dots, with a small, slightly raised black patch before it toward 

 the inner margin; black discal and terminal dots. 26 mm. 



Not seen. 



United States (Florida?) 



2. E. petrellus Zeller. Head, thorax, base of fore wings, antemedial and sub- 

 terminal spaces light wood-brown, the rest white, dusted and shaded with light 

 dull gray, darker toward the inner margin; fold suffused with wood-brown in the 

 median area; lines whitish, dentate, defined with dark gray dots, or broken den- 

 tate lines; discal dots partly confluent, darker gray, with some brown scales 

 around them. Black terminal dots. < 20 mm., $ 25 mm. 



In variety hapsella Hulst the areas normally brown are only slightly browner 

 than the rest. 



New Jersey to Colorado, and south. 



3. E. lignosellus Zeller. Male typically ochre yellow or light wood-brown, less 

 rusty than the brown parts of the last species; costa and outer and inner mar- 

 gins normally shaded with fuscous brown, dusted with white, but sometimes con- 

 colorous; the borders disappearing at the base of the wing; ante- and post- 

 medial lines of a few dots; only lower discal dot distinct, black; Cu sometimes 

 narrowly shaded with powdery fuscous. Hind wing translucent white, with fus- 

 cous border. Typical female blackish, varying in details, and sometimes with a 

 yellow bar on the disc. 15-25 mm. 



