THE CANADIAN ENTOMOLOGIST. 253 



sheath, apex of hind femora, distinctly defined apical two-thirds of hind 

 tibiie, hind tarsi and large spot on upper angle of meso-epimera, black or 

 dark brown ; wings hyaline ; veins, except costal, brown ; stigma brown. 

 Described from a specimen reared by H. G. Dyar, from a green 

 larva (edge eater?) supposed to have come from hornbeam (Ostrya 

 americana) taken in New Jersey. This species is closely allied to 

 F. odoratus, Dyar. 



Pontania terminalis, n. sp. 



Female. — Length, 4 mm.; not very robust; shining; clypeus very 

 shallowly. broadly emarginate ; vertex with scarcely distinguishable pen- 

 tagonal area, smooth or with ridges rounded, subobsolete ; fovea shallow ; 

 antennae with third joint slightly longer than fourth ; venation about 

 normal ; outer veins of discal cells of hind wings interstitial ; stigma not 

 very broad, tapering regularly to tip ; claws large, deeply cleft ; sheath 

 narrow, regularly tapering, or slightly emarginate on lower edge ; cerci 

 short. Colour black, shining ; apex of clypeus, other mouth-parts, 

 angles of pronotum, tegul^e and legs, for the most part, light yellow ; 

 extreme bases of coxae and hind tibiae and tarsi brownish-black ; wings 

 hyaline or nearly so ; veins, including all of stigma, strongly infuscated. 



Male. — Length, 3.5 mm ; much more slender than female ; structure 

 as in female; antennae slightly more robust and with shorter joints; 

 colour as in female, except venter, which is reddish-yellow, more or less 

 infuscated, especially on the lateral area. 



Described from three females and two males reared by H. G. Dyar, 

 from imperfect galls in the partly-rolled terminals of willow leaves. 

 Specimens collected near New York City. Types in Coll. U. S. Nat. 

 Mus., and collection of H. G. Dyar. 



This species is somewhat closely allied to Fontania hyalina, but 

 differs in important characters and distinctly in the habit of the larva 

 in partly rolling the leaf and formation of im[)erfect gall. 



Fontania populi, n. sp. 



Female. — Length, 5 mm. ; robust ; shining ; clypeus deeply emar- 

 ginate ; lobes somewhat pointed ; labrum with rather long yellowish 

 hairs ; ridges about ocellar basin sharply denned ; frontal crest stout, 

 unbroken ; fovea oval ; antennae short, moderately' robust, tliird joint a 

 little longer than fourth ; venation normal, except that the second recur- 

 rent is very near the second transverse cubital, and the outer veins of the 

 discal cells of hind wings are interstitial or nearly so ; claws deeply and 



