306 Catalogue of North American Sphinges. 
dorsal series of white dots on the abdomen; in other respects it 
seems nearly allied to the Chamenerii. When my Catalogues of 
the Insects of Massachusetts were published I was not aware that 
the specific name E’pilobii had been previously appropriated ; for 
the species to which I then applied it I have now substituted 
that of Chamenerii derived from Tournefort’s name for the genus 
E/pilobium. 
ano barbato. L. 
§ Legitine 
Family Il MACROGLOSSIADE. H. The Macroglossians. 
Sesiide. Stephens. Sesiada. Kirby. 
* Wings angulated and indented ; antenna tapering at the end, 
with a long terminal hook. 
Genus VII. Prerocon. Boisduval. 
P? inscriptum. H. 
Ash-gray ; wings angularly indented ; first pair with two dusky 
bands near the base, connected on the inner margin by a blackish 
line, a few undulated and zigzag transverse lines beyond the mid- 
dle, a dusky outer margin, a half-oval brown spot at tip, and a 
small deep brown patch including a white I near the tip; hind- 
wings reddish gray, with a dusky hind-margin; collar edged 
with brown; abdomen with two dorsal series of black dots. Ex- 
pands two inches. Inhabits Indiana. 
Of this species I have seen only two individuals, both females, 
having rather long slender and simple antenne, attenuated and 
curved so as to form a hook at the end. In the shape of the 
wings and distribution of the colors this insect nearly resembles 
_ some species of Smerinthus, from which genus it is excluded by 
the length of the tongue, which nearly equals that of the body: 
Pterogon Gaure, which I suppose to be the only legitimate spe 
cies of the genus that has yet been discovered in the United 
States, is known to me only by Mr. Abbot’s figure. 
Genus VIII. Tuyrreus. Swainson. 
1. T. lugubris. L. 
Brown; wings sinuated and slightly angulated on the outer 
edge ; first pair with an oblique streak and an eye-like dot before 
