﻿NORTH AMERICAN SPHINGID^. 131 



margin entire, very obliquely convex, and the inner margin concave above the inner 

 angle. 



Larva. — The European type of this genus has a small head and a caudal horn on 

 the 11th ring, and tapers anteriorly; the skin is finely shagreened and is marked by 

 a stigmatal and substigmatal line. It undergoes its transformation on the surface 

 of the ground in an imperfect cocoon. The pupa is elongated, with the head-case 

 very salient. 



SPECIES. 



4. Flavofasciata. — Wings blackish brown, with a broad oblique luteous band. 



5. Thetis. 



6. Tantalus. — The third abdominal segment white or silvery on the dorsum. 



7. Ceculus. — Hind wings with a central, pale orange-yellow band ; abdomen with two lateral orange-colored 



spots at base, and two near tip. 



8. Sagra. — Hind wings with a central and narrow terminal, pale yellow band ; blackish at the base. 



§ Antennae subclavate ; tongue as long as the body. (?) 



4. M. flavofasciata Walker, p. 87. — Testaceous blackish beneath. Head with a blackish band in front. 



Abdomen blackish, with a testaceous tuft on each side at the tip. Wings blackish brown, with a 

 broad oblique luteous band. Fore wings somewhate luteous beneath toward the base. Length of the 

 body 8 lines, of the wings 20 lines. 

 ' Egg. ? 



Young Larva. ? 



Mature Larva. ? 



Pupation. ? 



Food-plants. ? 



Geographical distribution. — Albany River, Hudson's Bay. 



5. M. Thetis Boisduval, Ann. Soc. Bnt. Fr. 3me ser. 



§§ Antennae slender, scarcely clavato prismatic ; tongue about one-half as long as the 

 body ; not pilose. 



6. M. Tantalus.— Sphinx Tantalus Linn. Mus. Lud. 21, Fair. Sp. Ins. II. 153, 1 ; Mant. Ins. II. 98, 



1. Gram. I. 107, pi. 68, f. F.; Gmel. Syst. Nat. I. 5, 2386, 25. Sesia Tantalus, Syst. Ent. III. 1, 



379, 1. Sphinx Ixion, Syst. Nat. II. 803, 26. Sp. Ins. II. 154, 2 ; Mant. Ins. II. 98, 2 ; Gmel. 



Syst. Nat. 5, 2386, 26. Sphinx zonata Drury, I. 57, pi. 26, f. 5. Sphinx Titan Cram. II. 73, 



pi. 142, f. F. Aellopus Tantalus Hubn. Exot. Schmet. Macroglossum annulosum Swainson, III. 



pi. 132, f. 1. Macroglossa balteata Kirtland, Sill. Jour. Sci. 13 N. S., 39, p. 337. Macroglossa 



Tantalus Walker, p. 88. 



Head, palpi above and thorax brown, but in the recent specimen tinged with deep olivaceous ; palpi beneath 



whitish, and the breast and legs ash-colored or brownish wbite in the male, in the female these parts have 



a more or less brownish hue. Abdomen brown or olivaceous brown, with the third segment banded above 



with white ; beneath brown, the upper segments in the males having an ashy hue, with four white points 



on the lateral, hind portions of the ventral segments ; lateral terminal tufts blackish brown, the central 



testaceous. Anterior wings ferruginous-brown with a double row of whitish spots extending from the 



discal spot to the inner margin ; discal spot blackish surrounded with white ; with three white subterminal 



