NORTH ABIERICAN LEPIDOPTERA. 135 



in front of primaries. Abdomen very long, tapering gi'adually to a 

 point, the segments armed jiosteriorly with spinules ; vestiture very 

 smooth, a narrow brush of fine hair at t'lyi in the % . Tibiae not 

 spinose ; median pair with unequal terminal spurs, postei'ior with 

 termiiuil and middle spurs. Legs lengthening posteriorly, the hind 

 legs much the longest and stoutest. Primaries narrow, proportion- 

 ately small, apex acute, subfalcate, outer margin very oblique, inner 

 margin sinuate; 12-veined, the venation presenting no peculiarity. 

 Secondaries small and narrow, venation as usual, outer nuirgin 

 sharply produced on vein lb, else even, apex pointed. The genitalia 

 are very much as in Darapsa ; there is no essential difference in the 

 siipra-anal ])late and hook ; the side piece is rather broad, a small, 

 weak, slightly curved hook inferiorly near base. 



This genus differs from all others of our American forms in the 

 long, slender abdomen, and the coniparatively short, narrow wings, 

 the primaries subfalcate. 



Two species are in our lists as North American ; the conunon C. 

 tersa of the East, and C. procrie Clem., from Lower California. This 

 latter species has never since been found in our territory. Mr. Hy. 

 Edwards states that he never saw or heard of it in California. Butler 

 says he thinks it an African form with an erroneous locality. Strecker 

 figures a species which he says agrees with Clemens' description and 

 which may have been Clemens' type, but he has no definite informa- 

 tion in regard to its locality. Mr. Grote suggests that it may be C. 

 lucasil from East India, and Mr. Maassen makes the reference posi- 

 tively. For the l)enefit of those desiring to investigate, I add the 

 l)ibliogra[)hy. 



The only species really belonging to our fauna is tersa, and the 

 genus is essentially a tropical one. 



V. loi-jiia Liuu., Mant. lus. ii, 538, Sphinx: Dru., Ex. i, 61, pi. 28, fig. 3, Sphinx: 

 Westw., ed. i, 56, pi. 28, fig. 3, Deilephila ; Fa))r., Syst. Eut, 547, Sphinx ; 

 Sp. Ins. ii, 153, Sphinx; Mant., Ins. 2, 98, Sphinx; Ent. Syst. iii. 1, 378, 

 Sphinx; A. & S.-" Ins. Ga. i. 75, pi. 38, Sphinx; Cram., Ex. iv, 226, pi. 397. 

 fig. C, Sphinx ; Gmel., ed. Linn. S. N. 2379, Sphinx ; Hiib., Verz. 1.35, Ther- 

 . etra ; Harr.,* Sill. Journ. 36, 303, Chwrocampa ; Duncan,* Nat. Libr. 37, pi. 

 V, fig. 1, and pi. vi, fig. 1, Metopsilus ; Wlk., C. B. M. Lep. Het. viii, 131, 

 Chasrocampa ; Bnnu., Sph. Braz. 61, Philampelus ; Lucas in Sagra ('uba, 1856, 

 293, Choerocampa ; Clera.,* Journ. Ac. N. Sci. Phil, iv, 150, Chcerocampa ; Morr., 

 Syn. 1862, 171, Chwrocampa ; H. S. Corr. Bl. 18, p. 58, Choerocampa ; Grt., 

 Buff. Bull, i, 22, Metopsilus; Bd.,» Sp. Gen. Het. i, 268, Chcerocnmpa ; Butl., 

 Tr. Zool. Soc. Loud, ix, 563, Choerocampa ; Fernald,* Sphing. 62, Chverocampa ; 

 Gundlach, Cont. Eut. Cuba 191, Choerocampa; Grt., Hawk Moths 30, Dei- 

 louche; Edw., Eut. Amer. 3, 165, Choerocampa. 



