ART. 7 NEW PARASITIC HYMENOPTEEA MUESEBEOK 13 



APANTELES COXALIS. new species 



Falls near euphydryidis Muesebeck, but differs particularly in the 

 smoother face, the much more strongly sculptured and darker pos- 

 terior coxae, and the less strongly compressed abdomen. From 

 acronyctae Riley, which is a parasite of the same host, it differs in 

 having yellow tegulae, in the distinctly curved posterior margin of 

 second abdominal tergite, in the smaller, less polished scutellum 

 and the more strongly sculptured posterior coxae. 



Female. — Length, 2.2 mm. Face much broader at base of clypeus 

 than long, faintly punctate, shining; frons and vertex smooth and 

 shining ; temples and cheeks practically impunctate, smooth and shin- 

 ing; antennae fully as long as the body, slender, the four apical 

 segments considerably shorter than the preceding, but slender and 

 much longer than broad ; postocellar line slightly shorter than ocell- 

 ocular line ; median ocellus removed from lateral ocelli by the length 

 of its own diameter ; mesoscutum closely, coarsely punctate, much more 

 shining laterally than in the middle ; scutellum small, strongly convex, 

 distinctly sparsely punctate, strongly shining; propodeum coarsely 

 rugoso-reticulate, with a more or less distinct median longitudinal 

 carina ; mesopleura closely punctate anteriorly, polished posteriorly ; 

 stigma more than twice as long as its greatest breadth, radius arising 

 beyond middle of stigma, slightly directed outwardly and not longer 

 than intercubitus, sometimes distinctly shorter, posterior coxae punc- 

 tate and subopaque, not distinctly half as long as the abdomen ; spurs 

 of posterior tibiae of equal length and not quite half as long as 

 the metatarsus; abdomen slightly longer than the thorax, somewhat 

 compressed toward apex; chitinized plate of first tergite broadening 

 graduall}^ from base to apex, finely, very closely rugulose; lateral 

 membranous margins along this plate slender; second tergite rec- 

 tangular, about as broad at apex as at base, entirely closely rugulose 

 and opaque, the posterior margin distinctly curving forward later- 

 ally; third tergite twice as long as broad, and with the following 

 tergites, smooth and polished; hypopygium large, extending a little 

 be3'ond the last dorsal abdominal segment; ovipositor sheaths only 

 slightly exserted. Black; antennae black, except the scape, which is 

 yellow beneath; wings hyaline, stigma and veins brown; legs bright 

 testaceous except the basal half of posterior coxae, which are black, 

 and the posterior tarsi, which are more or less dusky ; venter of abdo- 

 men testaceous, except on the apical third. 



Male. — Like the female in practically all respects. The antennal 

 scape, however, is darker. 



Type.—Q?it. No. 28048, U.S.N.M. 



Type-locality. — Manchester, Conn. 



Host. — Aero ny eta ohlinita Smith and Abbot. 



