NEW GALL MIDGES 117 



Family DALCERID/E 



Paracraga argentea Schaus. 



Elliptical, flattened, onisciform; abdominal feet wanting, venter mem- 

 branous ; thoracic feet minute ; head incomplete above, retracted in joint 



2 ; joint 2 forming a hood, low^er than joint 3 and partly folded under it, 

 but pigmented and with a large spiracle high up laterally. Other spiracles 

 on joints 5 to 1 2 in line, in the edge of the membranous ventral area. 

 Joint 2 yellow dorseJly with purple-brown anterior line ; joint 3 with a 

 broad semilunate collar-like purple-brown band in front ; dorsum of joints 



3 to 1 2 yellow, with a subdorsal dark red band, joined at the ends and 

 bent out a little at joints 4, 7, and 1 0, where a black superlateral spot 

 cuts the edge of the yellow area. Sides colorless, presumably transpzu:- 

 ent. Appendaiges shrunken and undecipherable in the inflated specimen, 

 apparently fleshy with black cores, three on joint 3, two on joint 2, one 

 lateral one on joints 5 to 13. 



Cocoon spun on the back of a leaif , a thin net of yellow silk, on top of 

 which is an irregularly circular area of flesh-colored opaque silk, with a 

 band of the same reaching to the anterior and posterior ends of the 

 cocoon. These bands widen outwardly and cover, beneath the base of 

 the widened part, a mass of silk stained dark brown. 



Food plant : Terminalia buceras. 



NEW GALL MIDGES (ITONIDID.^) 



By E. P. FELT, Albany. N. Y. 



This paper characterizes a new species of Tritozyga, an American 

 genus known for nearly half a century only by a brief generic diagnosis 

 and represented during this time only by a unique and mutilated male. 

 Konisomyia is an exceedingly interesting synthetic form. The other 

 species described in this paper were reared and are therefore accompa- 

 nied by valuable biological data. 



Tritozyga fenestra, new species. 



One specimen of this peculiar female was taken on the office window 

 June 3 and another June 6, 1914. Nothing is known concerning its 

 life history and habits. 



