TROCIIILIUM. 137 



Fam. YI. J^GERIAD^ Harris. 



With false eyes or ocelli. Secondaries wide, entire; fringe 

 short, vitreous, with fx. frenulum ; two or three nerves on the 

 interior margin, besides five others without a costal. Hy- 

 menopterous like insects, whose primaries usually are vitre- 

 ous to the margins, and secondaries altogether. Body large; 

 eyes naked; antennre longer than half the primaries, gradu- 

 ally enlarging and again diminishing at the tip; seldom fili- 

 form; usually ciliate in the male, more seldom lamellar or 

 pectinate. Palpi strongly developed, erect, hairy below ; 

 terminal joint sharp, naked. For the most part a distinct 

 spiral tongue; in Trocliiliwm only two short soft pieces. Legs 

 robust, covered with scales or hairs, with two pairs of long 

 spurs. Abdomen extending far beyond the anal angle, with 

 seven segments (the female has but six), with red, yellow, or 

 white rings, usually with a caudal tuft. Primaries narrow, 

 at least four times longer than wide; interior angle rounded. 

 Secondaries shorter but much wider; anal angle rounded. In 

 a state of repose the wings are usually about half erected. 

 Larva usually whitish, with head dark. Lives in the bark 

 or the interior of trees and shrubs, seldom in the roots or 

 stalks of herbaceous plants. 



TROCHILIUM Scop. 



AntenncB gradually thickened nearly to the end, which is curved 

 but not hooked ; tip with a pencil of hairs. Two short soft pro- 

 cesses instead of a tongue. 



Hornet like in appearance. Body stout; antennce of the males 

 with a lamellar process at every joint; palpi strong, densely pilose; 

 legs, especially the posterior, clothed with a sort of fur. Male 

 only with a caudal tuft. Primaries often, secondaries always trans- 

 parent. • 



Hakeis. 



1. T. marginatum Harris. 



Black. Wings transparent; first pair with a broad border, the 

 tip and a transverse band beyond the middle pale brown ; hind 

 wings with a broad black fringe; antennce black; two longitudinal 

 lines on the thorax; hind margins of the abdominal segments, 



