18 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 69 



punctate and opaque; malar space shorter than basal width of man- 

 dible; frons strongly punctate laterally and with fine curved striae 

 below median oscellus; vertex and temples punctate, subopaque; 

 ocell-ocular line subequal with postocellar line; antennae nmch shorter 

 than the body, the three or four apical segments hardly longer than 

 broad ; mesoscutum finely punctate anteriorly, polished posteriorly ; 

 scutellum impunctate, highly polished ; propodeum rugose with a 

 prominent median longitudinal carina; mesopleura shallowly punc- 

 tate anteriorly, polished posteriorly; stigma a little more than twice 

 as long as broad; radius arising from beyond middle of stigma, 

 strongly tending outwardly, and longer than first intercubitus ; pos- 

 terior coxae smooth and shining on the outer face; abdomen short 

 and stout; first tergite short and broad, broadening strongly pos- 

 teriorly, distinctly broader at apex than long, finely closely rugulose 

 over its entire surface, more weakly so in the median impression at 

 base ; second tergite rectangular, three times as broad as long, entirely 

 finely rugulose and opaque; suturiform articulation fine, straight, 

 not at all curving forward laterally; third tergite scarcely as long 

 as the second, smooth and shining, with only a few faint punctures 

 at base; remaining tergites much shorter, smooth, and polished; 

 hypopygium large, but not surpassing apex of last dorsal segment; 

 ovipositor sheaths about half as long as the abdomen. Black ; scape 

 black ; antennal flagellum brownish beneath, black above and at apex ; 

 wings uniformly slightly dusky ; all coxae entirely black ; trochanters, 

 femora, tibiae and tarsi of all legs entirely testaceous ; abdomen com- 

 pletely black, including even venter at base. 



Male. — Like the female except for sexual differences. The an- 

 tennae are about as long as the body. 



Cocoons. — Gregarious, encased in a ball of silk, which very closelj 

 resembles the cocoon mass of Apanteles atdlantae^ and is easily mis- 

 taken for a spider egg cocoon. 



Type.— C?it. No. 28052, U.S.N.M. 



Type-locality. — Melrose Highlands, Mass. 



Host. — Scopelosoma devla Grote. 



Described from 4 female and 2 male specimens reared from the 

 above-named host by J. V. Schaffner, jr., under Gipsy Moth Labora- 

 rorv. No. 12164 J 34. 



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