﻿NORTH AMERICAN SPIIINGID^. 149 



30. D. riiodocera. — Walker, p. 184. 



Fawn color, paler beneath. Sides of the head and of the thorax whitish. Antennae rose color above. 

 Abdomen paler than the thorax, with a blackish spot on each side at the base. Fore wings with a cinereous 

 tinge, with an oblique exterior line, with a brownish discal dot, and with two diffuse ferruginous spots, one 

 in front, the other behind ; ciliae ferruginous. Hind wings blackish, whitish about the interior angle ; 

 ciliae mostly whitish. Length of the body 17 lines ; of the wings 36 lines. 



Geographical distribution. — St. Domingo. 



CHiEROCAMPA Dwp. 



The body in this group is slender, long and tapering. The thorax is smooth, rather 

 short, advanced in front of the base of the anterior wings and tapers on the sides to 

 the head. The head is rather large, prominent and moderately broad ; the front 

 smooth, conical and broad ; the eyes moderate and salient ; the palpi ascending to a 

 level with the front ; the tongue extends to the end of the abdomen ; the antennas 

 are short, but longer than the thorax, clavato-prismatic, terminating suddenly in a 

 short hook and seta. The abdomen is quite long, more than twice longer than 

 thorax, oblanceolate, tapering very much to the tip, which is acute. The wings are 

 narrow, the anterior three times longer than broad across the inner angle, and the 

 length much less than that of the body ; the tip very acute, the hind border very 

 oblique and nearly straight or slightly excavated beneath the tip. Hind wings, the 

 tip somewhat acuminated, hind border very oblique, and interior angle well marked. 

 The legs are long and slender, the anterior tibiae hairy, and hind tibiae with four 

 moderate spurs. 



Larva. — The head is small and the anterior segments very much attenuated from 

 the third, and retractile ; third and fourth swollen, with a large subdorsal ocellus on 

 the latter, followed by a row of ocelli, similar ; eleventh segment with a caudal horn 

 [Abbot & Smith). The larval transformation takes place in an imperfect cocoon spun 

 on the surface of the ground. 



SPECIES. 

 § Hind border of anterior wings nearly straight. 



31. Tersa. — Hind wings black, with a row of subterminal yellow spots. 



32. Chiron. — Hind wings black, with a band of pale yellow dots ; fore wings without distinct lines. 



35. Procne. New sp. — Hind wings uniform blackish brown. 



38. Versuta. New sp. — Hind wings dark brown, dull greenish at base, with an irregular central luteous 

 band, tinged with orange. 



§§ Hind border of anterior wings somewhat hooked. 

 34. Falco. — Hind wings with two blackish stripes. 



36. Drancus. — Hind wings uniform dark brown. 



37. Nitidula. New sp. — Hind wings black, with a row of central, pale tastaceous spots and terminal 



border the same ; fore wings with a single line. 



33. ITialassina. New sp. — Hind wings black with a central, dull greenish band. 



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