Catalogue of North American Sphinges. 311 
the outside with long orange-colored hairs; spurs covered with 
white hairs. Expands from thirteen to fifteen lines. Larva, 
similar in form and color to those of other species of the genus, 
lives in the pith of squash and pumpkin vines, which it leaves at 
the root, and forms in the ground a cocoon composed of grains of 
earth cemented by a gummy matter. Pupa, by the aid of the 
abdominal denticulations, almost entirely excluded from the co- 
coon during the last transformation. 
The sudden death of the squash-vines, during midsummer, is 
occasioned by the ravages of the larva of this insect. For further 
Particulars relating to it, a communication, by the author, in the 
New-England Farmer, Vol. VIII, p. 33, for 1828, may be con- 
sulted. This species seems to be closely allied to, but sufficiently 
distinct from the tibialis of Drury, and the Bombiliformis of 
ramer. 
3. Ai. caudata. H. = fulvicornis. H.* (Catalogue.) 
Brown ; male with the fore-wings transparent from the base to 
the middle ; hind-wings transparent, with a brownish border, 
fringe, and subcostal spot ; antenne, palpi, collar, and tarsi tawny 
Yellow ; hind-legs yellow, end of the tibie and first tarsal joint 
fringed with tawny yellow and black hairs; tail slender, cylindri- 
cal, nearly as long as the body, tawny yellow, with a little black 
tuft on each side at base. The female differs from the male in hav- 
ing the fore-wings entirely opaque; the hind-legs black, with a 
Tusty spot in the middle of the tibize, and fringed with black ; cau- 
dal tuft of the ordinary form and size. Expands from one inch 
10 one inch and three lines. Larva inhabits the stems of our 
Indigenous currant, Ribes Floridum. , 
The Zyzena caudata, of Fabricius, has a somewhat similar 
fail, but does not belong to the genus 4igeria. 
- 4B. Syringe. H. 
Brown ; fore-wings with a transparent line at base ; hind-wings 
transparent, with a brown border, fringe, and subcostal spot ; an- 
enna, palpi, collar, first and second pairs of tarsi, and middle of 
the intermediate tibice rust-red ; middle of the tibie and the tarsi 
of the hind-legs yellow. Expands one inch and two lines. Larva 
"Ves in the trunks of Syringa vulgaris, the common lilac. 
PN oko ht inlt brie be eee se BOT 
be Credited to Mr. Say, in the Catalogue of the Insects of Massachusetts, by 
Mistake 
