8 PEOCEEDIjSTGS of the national museum vol. 69 



compressed; first abdominal tergite broadening a little posteriorly, 

 finely closely rugulose, its lateral membranous margins exceedingly 

 narrow, apparent only at apex ; second tergite rectangular, two and 

 one-half times as broad as long, finely closely rugulose, its posterior 

 margin straight; third tergite not distinctly twice as broad as long, 

 and, together with the following segments, entirely smooth and 

 highly polished ; hypopygidium not surpassing apex of last dorsal seg- 

 ment; ovipositor sheaths only slightly projecting. Black; scape of 

 antenna black, the flagellum brownish beneath toward base, darker 

 above and toward apex; all coxae black; remainder of legs entirely 

 testaceous ; tegulae deep black ; wings hyaline ; stigma and veins dark 

 brown ; abdomen black above and below, the venter slightly brownish 

 laterally at base. 



Male. — The antennae are longer than in the female, but hardly 

 longer than the body; the extreme apex of posterior femora above, 

 apex of posterior tibiae and the posterior tarsi are slightly in- 

 fuscated; otherwise as in the female. 



Cocoons. — ^White, gregarious, not embedded in a mass of silk. 



Type.—C^t. No. 28047, U.S.N.M. 



Type-locality. — Stonington, Conn. 



Host — Undetermined noctuid larva on white oak. 



Described from nine females and three males reared by J. V. 

 Schaffner, jr., under Gipsy Moth Laboratory No. 12164 H 157. The 

 type, allotype, and 8 paratypes are in the United States National 

 Museum ; the other two paratypes are at the gipsy moth laboratory. 



APANTELES AMMALONIS, new species 



Quite similar to diacrisiae Gahan, but at once distinguished from 

 that species by the tegulae and all coxae being black and by the 

 smooth third tergite. It also resembles somewhat depressus Viereck 

 and pyralidis Muesebeck, but is more elongate, with a narrower, more 

 parallel-sided first tergite, and with a less transverse second tergite. 

 From euchaetis Ashmead, which it resembles in habit, and in its 

 cocoons, it differs especially in the distinctly shorter posterior tibial 

 spurs, the more parallel-sided first tergite and the less polished 

 scutellum. 



Fei)iale. — Length, 2.3 mm. Head transverse, the temples not 

 broad, but bulging slightly; face much broader than long, and, to- 

 gether with the clypeus, very finely closely punctate and shining; 

 frons laterally, vertex and temples, closely minutely punctate and 

 subopaque ; antennae nearly as long as the body, the apical segments 

 shortened but distinctly longer than broad; mesoscutum thickly 

 punctate and opaque; scutdillum with shallower, more scattered 

 punctures and shining; propodeum finely rugulose except narrowly 

 along basal margin where it is smooth and shining, and provided 



