DESCRIPTIONS OF NEW REARED PARASITIC HYMEN- 

 OPTERA AND SOME NOTES OF SYNONYMY 



By C. F. W. MuESEBECK 



Of the Bureau of Entomology, United States Department of Agriculture 



In addition to the descriptions of 14 new species of Hymenoptera 

 belonging to the family Braconidae, this paper contains synonymical 

 notes involving certain of Provancher's species of the braconid sub- 

 family INIicrogasterinae. All of the new species are described from 

 reared material, and all but three from specimens reared at the gii-'sy 

 moth laboratory of the Bureau of Entomology at Melrose Highlands, 

 Mass. The notes on synonymy are the result of a recent examination 

 of the types of Provancher's species of Microgasterinae, which are in 

 the Museum of Public Instruction, in the Parliament Building, at 

 Quebec, Canada. 



Superfamily ICHNEUMONOIDEA 

 Family BRACONIDAE 



Subfamily Vipiinae 



MICROBRACON HELIANTHI, new species 



Most similar to pi7ii Muesebeck, but at once separated by the black- 

 ish wings, the mostly red thorax, the entirely red abdomen, the ab- 

 sence of a distinct stub of a median longitudinal carina toward ape.x 

 of propodeum, and the slightly longer ovipositor sheaths. 



Female. — Length, 3 mm. Head long antero-posteriorly, polished; 

 frons completely smooth and shining; diameter of opening between 

 clypeus and mandibles about twice as long as the malar space; 

 antennae 34-segmented, all the flagellar segments longer than broad, 

 but not even the first twice as long as broad ; thorax robust; mesoscu- 

 tum smooth and polished, the lobes not at all prominent, the parapsi- 

 dal grooves not distinctly impressed; furrow in front of scutellum 

 fine, straight, finely foveolate; scutellum large, polished; propodeum 

 entirely smooth and polished, without a distinct stub of a median 



No. 2633.— Proceedings U. S. National Museum, Vol. 69, Art. 7 



3059—26 1 1 



