136 W. H. ASHMEAD. 



6. AiKli'ictis topiarius n. sp.— (The Leafy Bower Gall.) 



Galls.— In general appearauce exactly similar to Cynips frondosa Bass., but not 

 so large, comprising a cluster of small, deformed, lanceolate leaflets, with from 

 three to five small, smooth, oval cells in its matrix ; these cells are deciduous, 

 measure but .06 or .07 of an inch in diameter and like other leafy galls fall to 

 the ground on reaching maturity. 



Gall-fly. — 9- Length .09 of an inch. Color: uniform red -brown, punctate; 

 eyes dark brown ; autennje 13-jointed, slightly longer than thorax and very 

 slightly thickened towards tip ; thorax with the usual grooves, so characteristic 

 of this genus, only not so distinctly apparent as usual, the median longitudinal 

 line being faintly traceable, as well as the two short lines on the shoulders ; scu- 

 tellum rugoso-punctate, cushion -shaped with two small, oblique fovete at base; 

 abdomen polished, second segment occupying more than half the length of ab- 

 domen, third, fourth and fifth .segments subequal ; wings hyaline, veins hyaline, 

 so clear as to be traced with diflBculty, the radial area open, areolet so pale as to 

 be invisible, excepting when held up to the light, then it is seen to be distinct; 

 cubitus obsolete. 



Described from two 9 specimens bred March, 1886. It is terribly 

 preyed upon by parasites ; have bred from it Eurytoma studiosa Say, 

 a Torymus, a Synergus, a Ceroptres, and a Platygaster with clavate 

 legs. 



7. Ainlriciis stropii!^ n. sp.— (The Leafy-wreath Gall.) 



Galls. — A diminutive, brown, acorn-shaped gall, issuing from a bud axil, sur- 

 rounded at base with small, narrow, dense leaflets. The gall, itself, when re- 

 moved from its leafy matrix is oblong-oval ; in height .15 inch ; diameter 

 through .10 inch, and has a little nipple on top. It, too, drops to the ground, but 

 unlike the other species just described, there is but one cell to each gall. 



Gall-fly. — 9 • Length .10 inch. Head and thorax dark brown, finely punctate, 

 subopaque. Head obfuscate on vertex ; ocelli black ; antennae 14-jointed, yel- 

 lowish brown, infuscated at tips; thorax considerably shorter than abdomen, 

 parapsidal grooves distinct, the median groove obsolete, a slight trace of it visible 

 in front, with two short subobsolete grooves in front on either side of it, scutel- 

 lum rugoso-punctate, pubescent ; pleurse coriaceous ; legs reddish brown, pubes- 

 cent, and slightly obfuscated; abdomen black, smooth and shining, a few sparse 

 whitish pubescence on sides of second segment ; wings hyaline, veins brown, 

 radial area open, areolet distinct, the cubital cell nearly closed. 



Described from several specimens bred March, 1886. 



8. Acraspis vaceinii n. sp.— (The Huckleberry-like Gall.) 



Galls. — "(;iusters of small, somewhat bell-shaped, petiolate, greenish galls on 

 the under side of the leaves, along the midrib. Their shape may be compared 

 to that of the flowers of vacciniium. They are attenuated at the basis into a short 

 petiole, fastened to the midrib of the leaf; the opposite end is truncated the 

 truncature being excavated ; the length, from the foot of the petiole to the trun- 

 cated end, is from 0.12 to 0.15 inch. They grow in numbers, sometimes of ten 

 or more together, so that six, for instance, form a row on one side of the midrib 

 and four or fi\e on the opposite." — Csten Sackeu. 



