82 ENTOMOLOGICAL NEWS [Feb., 'll 



A new Chalcidid from an Oak Gall (Hym.) 



By T. D. A. COCKERELL, University of Colorado, 



Boulder, Colo. 



The beautiful Chalcidid here described was bred by Mr. 

 E. R. Warren, the well-known Mammalogist, from galls of 

 Holcaspis on an oak (Qnercus undulata Torrey) at Trinidad, 

 Colorado. The galls are like those of H. rnbcns, Gillette, but 

 the single fly obtained seems different. 



Syntomaspis warreni n. sp. 



9 . Length (exclusive of ovipositor) 4 1-3 mm. ; ovipositor 5 2-5 

 mm. ; wings ample, perfectly clear, venation pale fulvo-f erruginous ; 

 head broad, peacock green, with faint crimson tints, frontal depressions 

 behind antennae shining golden ; eyes bright terra-cotta red ; mandibles 

 red except at apex ; sides of face very minutely rugosopunctate, sides 

 of front becoming striatulate ; scape and ring-joint ferruginous; fla- 

 gellum black, the joints very minutely longitudinally keeled; meso- 

 thorax and scutellum with large thimble-like punctures, variegated 

 with green and crimson, the posterior part of the scutellum minutely 

 granular, with microscopical punctures, and with a marginal sulcus 

 crossed by fine ridges ; other parts of thorax variegated with green and 

 purple ; anterior coxae brilliant green ; hind coxae very large, crim- 

 son-purple ; femora and tibiae bright chestnut red ; tarsi cream color, 

 rufescent subapically, black at apex ; lower margin of hind femora 

 minutely denticulate beyond the middle, but with no large tooth ; abdo- 

 men brilliant magenta, with blue-purple shades, first segment with a 

 very large flap, which is strongly notched posteriorly; second segment 

 carinate, deeply notched in middle; third segment also deeply notched; 

 hind tibiae with two spurs ; stigma sessile ; ovipositor chestnut-red, its 

 sheath black. 



Type in U. S. National Museum. 



Mr. J. C. Crawford has kindly compared this insect with 

 the material in the National Museum, and writes that it comes 

 very close to Syntomaspis californicus Ashm., which is green- 

 ish or golden greenish, without the purple tints. The species 

 is one of those which might be assigned either to Torymus or 



Syntomaspis. 



*- - 



AT THE ANNUAL MEETiNf, of the Pennsylvania Horticultural Society 

 held December soth, in Philadelphia. Dr. Henry Skinner was re-elected 

 Professor of Entomology for 1911. 



