THE NORTH AMERICAN SPECIES OP CALLIMORPHA LATH. 

 Mty JOHN B. S.^BTII. 



(With one plate.) 



Tlie species of CaUimorpha are ^raeefal, rather sliglitly Imilt motbs^ 

 ■svitli comparatively large wings and smoothly clothed body. Head rather 

 small, but distinct, not at all retracted; eyes large, globose, naked f 

 ocelli present; front broad snbquadrate; tongue moderate in length, 

 corneous. Palpi slender, middle joint much the longest. Antenuiie- 

 slender, filiform, with a single fine bristle at each sideof each joint in both 

 sexes; stronger, however, in the male. Thorax short, oval; abdomen 

 elongate, reaching to or exceeding anal angle of secondaries, cylindric 

 subequal throughout. Legs closely scaled, anterior tibia much the 

 shortest, posterior pair much the longest, middle tibice with a pair of 

 terminal spurs only, posterior with two pairs. Tarsi distinctly spin- 

 ulated. Primaries with distinct, somewhat acute, apex and slightly 

 oblique, rounded outer margin. Twelve veins. Internal vein not fur- 

 cate, ;2 from the submedian, 3, 4, and 5 from the same vein at the end of 

 the cell at equal distances. Six fron) the upper edge of the cell — a 

 distinct accessory cell from which arise veins 7 to 10 — 8 and 9 on a stalk ; 

 the cell is variablejn size and shape even in the same species, and there 

 is, therefore, some inconstancy here. Vein 11 from the subcostal one- 

 third from the end of cell to costal margin. Costal vein (12) as usuaL 

 Secondaries 8 veined, two internal veins. Veins 3, 4, and 5 are nearly 

 equidistant at the end of the median vein, G and 7 formed by the fur- 

 cation of the subcostal at the end of the cell. Costal vein from the 

 subcostal some distance from base. The venation is somewhat vari- 

 able, but after the same general type. Frenelum present. In the (5 

 simple, sliding in a loop from the costal margin. In the female com- 

 l)Ouud covered by a few crossed hairs on the median vein, the loop from 

 costa wanting. The genitalia are all after the same pattern. The hook 

 is very long, slender, and acute; side pieces long, narrow, broadening 

 a little at tip, the angles variably produced. 



This genus contains, according to the most recent list, three species,. 

 c/^mcHC Esp., interriiptomarginata'Deli.. and lecontei Bd., the latter with 

 four varieties and three synonyms. The tirst two of these are well 

 marked si)ecies which have never caused question as to their limits, but 

 the third, lecontei, has bothered authors more than enough — some sub- 

 dividing it into five species, others referring them all as varieties of 

 one and the same form. 



A brief history of the variation of the opinions nuiy not be uninter- 

 esting. 

 336 



