TROCHILIUM, 139 



T. cucurbitae Harris. 



Fore wings opaque, lustrous olive brown; liind wings transpa- 

 rent, with the margin and fringe brown; antennas greenish-black; 

 palpi pale yellow, with a little black tuft near the top ; thorax 

 olive; abdomen deep orange, with a transverse basal black band, 

 and a longitudinal row of five or six black spots; tibijs and tarsi 

 of the hind legs thickly fringed on the inside with black and on 

 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. Lives 



in the pith of squash and pumpkin vines. Forms in the ground a 



cocoon composed of grains of earth cemented by a gummy matter. 



Piipa almost entirely excluded from the cocoon during the last 



transformation. 



North America. 



Harris. 



T. caudata Harris. 



Brown. 3Iale with the fore wings transparent from the base to 



the middle ; hind wings transparent, with a brownish border, fringe, 



and subcostal spot; antennae, palpi, collar, and tarsi tawny yellow; 



hind legs yellow; end of the tibite and first tarsal joint fringed with 



tawny yellow and black hairs; tail slender, cylindrical, nearly as 



long as the body, tawny yellow, with a little black tuft on each 



side at base. ^hQ female differs from the male in having the fore 



wings entirely opaque; the hind legs black, with a rusty spot in 



the middle of the tibite, and fringed with black; caudal tuft of the 



ordinary form and size. Expands from one inch to one inch and 



three lines. Larva inhabits the stems of our indigenous currant, 



Ribes jioridum. 



Harris. 



T. syringae Harris. 



Brown. Fore wings with a transparent line at base; hind wings 

 transparent, with a brown border, fringe, and subcostal spot; an- 

 tennie, palpi, collar, first and second pairs of tarsi, and middle of 

 the intermediate tibi* rust red ; middle of the tibite and the tarsi 

 of the hind legs yellow. Expands one inch and two lines. Larva 

 lives in the trunks of Syringa vulgaris, the common lilac. 



Harris. 



