266 WILLIAM T. M. FORBES 



Circumpolar; south to Maine, northern New Jersey, and Manitoba. New York: 

 Peru. 



9. G. viduella Fabricius. Black, amount of white on head variable; sometimes 

 with white on thorax also. Antemedial fascia as in lugubrella, postmedial par- 

 allel to outer margin, and often interrupted for a very short distance at middle. 

 Fringes white-tipped. Typically with the white covering about a fourth of the 

 wing surface; in var. labradoriella Clemens covering about half. 15 mm. 



July. 



Circumpolar; south to Mt. Washington, New Hampshire, and Alberta. 



10. G. bosquella Chambers. Thorax and fore wing rich chocolate brown, face 

 yellowish white; antennae brown with extreme tip of scape white; palpi dark brown 

 with two pale rings each on the second and third joints. Fore wing mixed brown- 

 ish and bluish black, with a large, irregular, bilobed, yellow or orange dorsal patch, 

 normally extending to costa at a third way out, and a white, postmedial costal spot. 

 A jet black spot in cell. 12 mm. (costipunctella Moschler; Parastega Mayrick). 



August and September. Caterpillar on Cassia chamcecrista, green, with head, 

 cervical shield, feet, and the small tubercles black; thorax mostly deep purplish 

 red. 



District of Columbia to Chicago, Illinois; Kansas; and south. 



G. ochreosuffusella Chambers may approach our territory on the southwest. It 

 is dark brown; third segment of palpus light, with two narrow brown rings; 

 thorax, base of fore wings, and a streak in fold yellowish. Fore wings finely 

 veined with dark brown, with four fine dark lines in the cell. 18 mm. July to 

 September. 



11. G. fluvialella Busck. Brown, somewhat yellowish, the veins broadly and 

 diffusely lined with dull black; often with the blackish color suffusing considerable 

 areas of the wing. Discocellular vein marked with a blackish spot. Hind wing 

 somewhat paler gray; rather broader than fore wing; palpi with second joint 

 somewhat dusted with white, no darker than third, but darker than fore wing, 

 brush as wide as eye, widest about the middle. Wings relatively broad, with broad 

 fringes. 18-22 mm. 



June to early July. 



Pennsylvania. New York: Peru, Rock City, Ithaca. 



12. G. hibiscella Busck. Dark Brown, antennas concolorous; palpi with large 

 spreading brushes on second segment, yellowish white with a few black scales 

 outside, extreme tip of second segment and an annulation of third black. Face, 

 head, and thorax yellowish white; shoulders and sometimes entire tegulae blackish. 

 Fore wing with brown or brown-black costal half, and ochreous dorsal half and 

 apex;, the boundary slightly diffuse. Dark part showing obscure pale spots and 

 pale part with dark bars and striae. Hind wing a little broader, light bluish 

 fuscous with yellower fringe. 16 mm. 



May to June; August. Caterpillars on leaves and capsules of rose mallow 

 (Hibiscus), semisocial, when mature often cutting a leaf to make it wither, and 

 form a shelter for pupation. Head and cervical shield black; thorax reddish 

 brown with third segment and front of second white; abdomen white with three 

 pairs of reddish dorsal lines. Tubercles black. Two broods; the larva hibernating. 



New Jersey to Illinois. 



G. ochreostrigella Chambers is a western species, or western race of G. hibiscella, 

 which has been reported from the northeast. 



13. G. discoccellella Chambers. Dark purplish brown, as a rule, shading into 

 wood-brown toward inner margin. Veins sometimes darker. Outer discal dot 

 yellow, usually with a black point in the center, at least in the female. Hind 

 wing pale and yellowish, palpus light dull yellow, with second and base of third 

 segment nearly black. 18 mm. 



Caterpillar on yellow dock (Rumex), and Polygonum; green, with yellow-green 



