196 JOHN B. SMITH. 



of segments spinulose. Tibite not spinulose, median with one pair, 

 posterior with two pairs of moderately long unequal spurs ; legs 

 moderate, but little longer posteriorly. Primaries eleven veined, 

 venation as usual, outer margin entire, but for a slight excavation 

 above anal angle. Secondaries slightly produced at anal angle. 

 The genitalia of the single species offer no great peculiarities ; the 

 supra-anal hook is rather long, somewhat irregular and with a darker 

 bent Lip ; the inferior process but little exceeding half the length of 

 the other. The side pieces are long, rather narrow, somewhat curved, 

 the tip rounded ; the clasper is a stout rolled plate, extended into a 

 rather short, thick spur or process. 



There is but a single species, differing from Chhenogramma, the 

 genus with which it most nearly agrees in structure, by the lashed 

 eyes, the smaller head, comparatively stouter body and shorter wings. 

 From all the other forms with lashed eyes it differs by the non- 

 spinose tibite. The dark coloration and small size of the single species 

 renders it easily recognizable. 



D. liyl»us Dru., Ex. ii, 45, pi. 26, fig. 3, SjjMnx ; Cram., Ex. ii, 16, pi. 107, fig. 

 C. Sphinx ; Fabr., Sp. Ins. ii, 149, Sphinx; Mant.. Ins. ii, 97, Sphinx; Ent. 

 Syst. iii, 1, 373, Sphinx : Gmel , ed. Liuu. S. N. 2383, Sphinx ; Hiib., Verz. 

 139, Ilyloicus ; Westw., ed. Dru. ii, 49, pi. 26, fig. 3, Sphinx; Harr.,* Sill. 

 Jouru. 36, 296, Sphinx; Wlk., C. B. M. Lep. Het. viii, 2.30, Dolba ; Clem.,*" 

 Journ. Ac. N. Sci. Phil, iv, 1859, 178, Dolba; Morris,* Synopsis 1862,203, 

 Dolbn; Harris,* Inj. Ins. Flint ed. 328, f^phinx ; Grt., Buff. Bull, i, 26, Dolba; 

 Scud.,* Psyche, ii, 77; Bd.,* Sp. Gen. Lep. Het. i, 98, Sphinx; Butler, Tr. 

 Zool. Soc. Lond. ix, 612, Dolba ; Pilate,* Pap. ii. 66; Harrington, Can. Eut. 

 xvi, 54; Fernald,* Sphing. 48, Dolba; Holland,* Can. Eut. xviii, 103, Dolba; 

 Grt., Hawk Moths 39, Dolba. 

 prini A & S.,* Ins. Ga. i, p. 69, pi. 35, Sphinx ; Westw., ed. Dru. ii, 47, pr. syn. 



Upper side of body and primaries varying from rusty red brown to blackish. 

 Palpi whitish beneath. Thorax white laterally, and with two white dorsal spots, 

 often wanting; the metathoracic tufts black. Abdomen with au interrupted 

 dorsal line, a row of white on each side of midiile, and a darker lateral baud, all 

 the segments margined with white. The under side of thorax and abdomen is 

 white. Primaries with a white patch at base and a white disc'al dot. A series 

 of three black dentate transverse lines at basal third, the inner lines accompa- 

 nied by white shades. Another series of three similar lines at outer third ; the 

 inner line darkest, heaviest and most dentate, the outer line more or less white 

 powdered, and beyond this the wing is usually more or less blotchy and white 

 marked. A rather evenly sinuate series of somewhat lunate spots, the lunules 

 convex inwardly between this last series of lines aud the outer margin, and a 

 similar but less complete row of marginal lunules, convex outwardly. A sub- 

 apical streak surmounted by au apical white shade. Secondaries smoky brown 

 to blackish, with whitish at base, and a whitish shade accompanying the dentate 



