CLEAR-WING MOTHS OF FAMILY AEGERIIDAE 133 



THE CALASESIA GROUP 

 Genus CALASESIA Beutenmiiller 



Calasesia Beutenmuller, Journ. New York Ent. Soc, vol. 7, p. 256, 1899. (Genotype, 

 Pyrrhoiaenia coccinea Beutenmuller.) 



Tongue well developed, spiraled. Antenna strong, thickened toward 

 apex, with apical tuft smooth in both sexes. Labial palpus curved up- 

 ward, reaching vertex, second joint with a short, rough, even brush, 

 terminal joint thickened with scales which protrude beyond apex. Thorax 

 smooth. Anal tuft short, blunt; hindtibia smooth with few spinelike 

 scales above spurs; first tarsal joint not thickened. Forewing with 11 

 veins. 7 and 8 coincident to costa: rest separate; 9, 10, and 11 parallel. 

 Hindwing with veins 3 and 4 closely approximate; 5 parallel to 4 and 

 nearer to 4 than to 6. Male genitalia with uncus hood-shaped; gnathos 

 well developed, strong; harpe short, nearly rectangular, cucullus armed 

 with heavy spines ; vinculum with medium anterior process ; aedeagus 

 stout, straight. Female genitalia with very long ductus, greatly enlarged, 

 bulgy on posterior third, then sclerotized for a short space and continued 

 as a narrow tube to the elongate ovate bursa, which contains a small nar- 

 row sclerotization at the entrance of the ductus. 



Only the type species is known. 



CALASESIA COCCINEA (Beutenmuller) 



Plate 2, Figure 15 ; Plate 9, Figures 46, 46a; Plate 15, Figure 76 



Pyrrhotaenia coccinea Beutenmuller, Journ. New York Ent. Soc, vol. 6, p. 241, 



1898. 

 Calasesia coccinea Beutenmuller, Journ. New York Ent. Soc, vol. 7, p. 256, 1899 ; 



Mem. Amer. Mus. Nat. Hist., vol. 1, pt. 6, p. 314, pi. 32, fig. 20, 1901.— 



McDuNNOUGH, Check list of the Lepidoptera of Canada and the United States 



of America, pt. 2, No. 8788, 1939. 



Male. — Antennae dusky black, strongly dilated, not pectinate. Labial 

 palpus sordid pale yellow, terminal joint black. Head black with stiff 

 black and white mixed hair on top ; occipital fringe sordid white. Thorax 

 lustrous blue-black, bright orange or red at the sides, anterior to wing 

 base and beneath ; metathorax laterally tufted with sordid white. Ab- 

 domen lustrous blue-black above and beneath ; anal tuft a fringe of short, 

 stiff black hairs. Legs violaceous-black. Forewing opaque, scarlet ; discal 

 mark conspicuous, round, blue-black ; outer part of costa and broad margin 

 dull black, fringes sordid white; underside dull orange, margin shaded 

 with black scales. Hindwing reddish brown, profusely sprinkled with 

 blackish scales above and beneath, fringes sordid white. 



Female. — Very similar to the male and difficult to determine without 

 dissection. The female appears to lack the sordid white lateral tufts 

 which occur on the metathorax of the male, but more and better examples 

 are needed to prove this difference. 



