﻿130 CLEMENS' SYNOPSIS OF 



Measurements — a Male. 





HEAD. 



THORAX. ABDOMEN. 



BODY. 



ANT. WING, 



Length. 



Breadth. 



Length. Breadth. Length. Breadth. 



Length. 



Length. 



2-00 



2-50— 1-50 



3-50 4-25 6-50 5-00 



Group II. 



12-00 



1300 



The thorax tapers on the sides markedly to the head, which is small and prominent. 

 The front is smooth and narrow, the eyes very small, the palpi acutely haired at the 

 extremity and exceeding the front, the antennae with a moderate hook without seta ; 

 the tongue extends to about the third abdominal ring. The tip of the anterior wings 

 is rounded, the hind margin circularly excavated beneath tip and above the inner 

 angle, the middle being convex. Posterior wings, hind margin scarcely denticulated 

 and slightly excavated near the inner angle. 



13. T. Nessus. — Sphinx Nessus Cramer, II. 9, pi. 107, f. D. Fabr. Sp. Ins. II. 140, 2 ; Mant. Ins. II. 



92, 2 ; Ent. Syst. III. 1, 355, 2. Gmel. Syst. Nat. I. 5, 2372, 91. Amphion Nessus Hubn. Ycrz. 



Schmett, 135, 1444. Thyreus ? Nessus Harris, p. 308, 3. Walker, p. 99. 

 The head, palpi and thorax dull ferruginous brown, palpi beneath and breast rufescent ; a yellowish- 

 white streak on the sides of the head and thorax, and a transverse ferruginous line on the hind part of 

 metathorax. The abdomen a dark chestnut brown, with the hind margins of fourth or fourth and fifth 

 segments pale yellow, with three or four bright ferruginous, lateral spots beginning on the fourth segment, 

 and two very small pure white tufts on the segments adjacent to the triple apical tuft, which is deep 

 chestnut ; beneath rufescent, with three lateral white dots on the hind portions of the posterior segments. 

 Anterior wings brown, with a purplish hue, costa grayish brown ; an indistinct dark brown band and line 

 in basilar space ; a dark chestnut, broad median band, divided above the medio-supei-ior nervule to the 

 costa, and containing a lighter colored discal spot ; a grayish brown subterminal line interrupted by the 

 central nervules and edged anteriorly with brownish, with a long, dark chestnut patch interposed in the 

 medio-central interspace; a ferruginous patch at the base of apical interspace, with two dark brown 

 adjacent patches in the succeeding interspaces. The fringes dark brown in the middle, pale yellow in the 

 excavations and bordered by dark brown. Posterior wings bright red with a dark brown terminal band ; 

 fringes from the tip to the centre brownish, and thence to anal angle pale yellow. 



Egg. ? 



Young Larva. ? 



Mature Larva. ? 



Pupation. ? 



Food-plants. ? 



Geographical distribution. — Canada, Massachusetts, New York, Pennsylvania, New Hampshire. 



Measurements — a Male. 





HEAD. 



THORAX. 



ABDOMEN. 



BODY. 



ANT. WING 



Length. 



Breadth. 



Length. Breadth. 



Length. Breadth. 



Length. 



Length. 



1-50 



2-00—1-25 



2-75 3-50 



5-75 4-00 



9-75 



9-50 



