NORTH AMERICAN LEPIDOPTERA. 197 



median lines. Anal angle powdered with white. Fringres of both wings cut with 

 white and brown. Beneath primaries mouse or dark ash gray, with the outer 

 series of transverse lines faintly reproduced; secondaries paler, powdered with 

 whitish to the dark outer margin, crossed by three dentate black lines, which 

 are often more or less confluent. Expands 2 — 2.50 inches; 50 — 62 mm. 



Hah. — Canada to Alabama ; westward to Missouri, Iowa. 



This species varies greatly in ground color and much in distinct- 

 ness of maculation. Some specimens are nearly black, and in these 

 the maculation is very indistinct, sometimes only indicated by the 

 white scales, which in such specimens are prominent. In other pale 

 specimens the black transverse lining is very distinct, and the speci- 

 men has somewhat the appearance of a miniature S. nistica with the 

 white omitted. It is rather common. Smith and Abbot first figured 

 the larva on ink berry illex glabra) and until the present time no 

 one has written the life history of the species. 



CHI.^IVOGRAMiVIA Smith. 

 Ent. Amer. iii, p. 154. 



Form rather robust, yet graceful. Head small, retracted, tliough 

 scarcely sunken. Eyes not lashed. Palpi stout, scarcely attaining 

 front; antenna fusiform, the tip hardly recurved ; a small tuft be- 

 tween the antennae ; tongue moderate. Thorax rather short, stout,. 

 not produced before base of primaries, as usual with indefinite pos- 

 terior tufts. Abdomen long, conic, pointed, with small, loose dorsal 

 tufts. Legs rather short and not very sti'ong, subequal, tibiae not 

 spinose, anterior tarsi not armed in any way. Primaries large, rather 

 broad, outer margin even or very faintly scalloped, somewhat exca- 

 vated above the hind angle. Secondaries of the usual form, vena- 

 tion as usual. 



The only species referred here is the Diludia ja^minearum of our 

 lists. 



The genus Diludia was created by Messrs. Grote and Robinson in 

 1865, with SjMux bronies as type, and with it were associated /or csian 

 and collaris, all West Indian or South American species (see Proc. 

 Ent. Soc. Phil. 1865, pp. 163 and 188). In describing the genus 

 they say that Sphinx jasminearwn and iS. leucophceata would probably 

 be referable to the same genus when identified. 



Three species of Diludia accordingly appear in our lists : ja&)nine- 

 armn Bdv., brontes Dru. and leucoplioiata Clem. 



