314 WILLIAM T. M. FORBES 



H. messelinella Dietz. Gray, sprinkled with whitish scales; thorax whitish, 

 dark brown in front; fore wing with antemedial fascia strongly angled, partly 

 breaking into costal and dorsal dashes; orbicular spot with two dashes before it, 

 above and below fold; postmedial fascia dark, angulate. 15 mm. 



Maryland; Florida. 



H. m. var. spoliatella Dietz. More glossy; marks less distinct; the basal streaks 

 obscure; front of thorax concolorous. 12-13 mm. 



New Jersey ; Pennsylvania. 



H. clemensella Chambers. The unique type is now greasy, but this seems to be a 

 white species. 



Kentucky. 



H. illibella Dietz. Gray, dusted somewhat with white and fuscous. Antemedial 

 fascia reduced to dots on margins; orbicular and discal dots more distinct; post- 

 medial fascia obsolete. 12-13 mm. 



Maryland. 



H. punctiferella Clemens. White, with five black bars, arranged 2, 1, 2; ground 

 dusted with gray toward apex, and shaded with yellowish flesh color in fringe; 

 and fringe at least of hind wing gray. (The five bars are the orbicular and 

 one nearly opposite it in the fold, a spot on Cu, and the two discal dots.) 12 mm. 



Pennsylvania. 



H. triangularisella Chambers. Grayish fuscous; third segment of palpus whitish. 

 Antemedial fascia a broad brown-powdered whitish triangle, resting on the inner 

 margin, followed by a dark brown triangle, resting on the costa. Outer part of 

 wing powdered on a whitish ground; discal dots minute. 18 mm. 



Kentucky. 



4. CALOSIMA Dietz 



Like Holcocera but with fully scaled eye -cap in place of a pecten on the antenna. 

 Fore wing immaculate. 



1. C. argyrosplendella Dietz. Yellowish white. Head white, shining; palpi dusted 

 outwardly with fuscous. Antennae gray; eye-cap white. Fore wing shading into 

 pale reddish brown outwardly; hind wing pure white, nearly as wide as fore wing. 

 11 mm. 



July. 



Pennsylvania; Louisiana; Florida. 



5. BLASTOBASIS Zeller 



(With Epistetus and Prosthesis Walsingham) 



Similar to Holcocera, but with M 3 and CUj completely united. Our species have 

 male antennae without a notch; cilia of male antennae as long as width of shaft; 

 fore wing with M 2 well separated, M 3 , CUj, and Cu, connate; hind wing with M> 

 short-stalked (fig. 176). 



1. B. plummerella Dietz. Ground powdery smoky brown, strongly shot with 

 purple; nearly even, but with a paler shade across the disc at two-fifths way out, 

 and one above anal angle. No definite markings as a rule; the most definitely 

 marked specimens with a small black orbicular and two discal dots. 10-14 mm. 



July. 



Maryland. New York: Rock City. 



Var. fuscopurpurella Dietz is large and practically immaculate, with the purple 

 rather strong, and the dark element of the ground strongly predominant. 



2. B. sagittella Dietz. Gray, speckled with dark brown; a pale antemedial 

 fascia, a little nearer the base at costa, angled out, and sharply extended along Cu 

 in a tooth; a heavy dark shade on its outer side. Base paler, edged along both 



