﻿160 CLEMENS' SYNOPSIS OF 



I r ar. ii. — Cinereous browu. Hind wings dull pale fawn color, greenish toward the base. 

 S. America, Honduras, West Indies. 



51. P. Inconspicua. — Walker, p. 190. 



Fawn-color, testaceous beneath. Abdomen with two rows of black dots, and toward the base with 

 two interrupted black bands. Fore wings with three undulating oblique blackish lines, a little darker 

 between the third line and the exterior border. Hind wings a little paler than the fore wings, with two 

 dark brown stripes, the one discal, the other marginal ; a brown undulating line between them. Length 

 of the body 21 lines ; of the wings 48 lines. 



Jamaica. 



MACROSILA Walker. 



Size large, or very large, body thick and long. The head is large, free and 

 advanced ; the front very broad and long, tapering but little to the tips of the palpi ; 

 the eyes very large and salient ; the antennae clavato-prismatic, with a short hook 

 and seta ; the palpi very thick and ascending, and pressed against the front ; the 

 tongue twice or nearly twice the length of the body, or about one-third longer. The 

 thorax is large and thick, somewhat rounded in front and tapering moderately on the 

 sides to the head. The abdomen is tapering and cylindrico-conical, at least twice 

 the length of the thorax. The wings are long, entire ; the anterior rather broad 

 across the inner angle, which is dilated, the hind margin obliquely convex, sometimes 

 slightly wavy, and the interior margin with a long concave excision. The legs are 

 long and strong, the posterior tibiae having four very long spurs. 



This group is very closely allied to Sphinx by the characters of the perfect insect, 

 and I have hesitated much whether to restrict its limits as described by Mr. Walker 

 or to extend it. The general agreement in the length of the tongue of such indi- 

 viduals here included as I have been able to examine, has led me to take the latter 

 course. This will doubtless be regarded as objectionable, but I think a greater degree 

 of clearness of arrangement is attained. Under any arrangement portions of the two 

 groups as compared to each other do not present well marked or decided differences, 

 and if some of the members of the present one strongly recal that of Sphinx, one 

 member of the latter reproduces in its structure most of the peculiarities of Macrosila. 



SPECIES. 



§ Hind wings without distinct bands, 

 f Abdomen with colored spots. 



54. Antaeus. — Hind wings transparent in the middle. 



55. Cluentius. — Grayish black ; hind wings black, with interior margin and interrupted median stripe 



luteous. 



52. Collaris. — Hoary; hind wings brown, with two hoary bands. 



56. Rustica. — Blackish brown, mottled with white ; hind wings blackish brown, whitish above inner angle." 



ff Abdomen without colored spots. 



