-iBT. 16 NEW ICHNEUMON-FLIES MUESEBECK 3 



slender, about as long as the body. Thorax slender; mesoscutum 

 narrowing gradually anteriorly, opaque, and entirely evenly punc- 

 tate, the punctures not confluent ; scutellum flat, polished, with a few 

 weak punctures; propodeum mostly smooth and shining, with some 

 weak sculpture medially adjoining the shallowly impressed, imper- 

 fectly defined areola; mesopleura mostly polished, weakly punctate 

 , anteriorly ; metapleura polished ; anterior wing with metacarpus 

 distinctly longer than stigma; stigma rather broad; radius not 

 oblique, a little longer than intercubitus, not strongly angled with 

 the latter; posterior coxae smooth; inner spur of posterior tibia 

 scarcely longer than the outer and much less than half as long as 

 metatarsus. Abdomen narrow; chitinized plate of first tergite par- 

 allel-sided, the base and apex of practically equal width, the entire 

 plate very finely rugulose and opaque, and with a poorly defined 

 median longitudinal impression posteriorly; second tergite trans- 

 verse, much shorter than third, the finely rugulose plate broader at 

 upex than at base and defined laterally by oblique impressed lines; 

 membranous margins on apical half of first tergite and along the 

 second, broad; following tergites practically smooth, at least the 

 third subopaque; hypopygium large but not surpassing apex of last 

 tergite; ovipositor sheaths slender, about as long as the abdomen, 

 slightly decurved at apex. Black; tegulae pale; wing bases black; 

 wings hyaline, stigma and veins pale brown; legs blackish, anterior 

 pair beyond coxae mostly yellowish brown ; middle femora sometimes 

 pale brownish, their tibiae at base and their tarsi pale; posterior 

 tibiae pale on basal fourth or third; lateral membranous margins of 

 first and second tergites yellowish brown. 



Male. — Essentially like the female, except for blackish tegulae. 



In the paratypes the tegulae vary from yellow to blackish. 



r^/^e.— U.S.N.M. No. 42870, from Billerica, Mass. 



Host. — ParalecMa pinifolielTa Chambers. 



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

 Schaffner, jr., July 5 to August 4, 1927, under Gipsy Moth Labora- 

 tory No. 12164 N37. 



APANTELES DEPRESSARIAE, new species 



Very closely resembling arktoteliae Viereck, from which it 

 especially differs in the weaker sculpturing of the second abdominal 

 tergite, the less sharply defined propodeal areola, the usually rela- 

 tively broader abdomen, the slightly shorter ovipositor sheaths, and, 

 in the case of the males, the pale stigma. 



Female. — Length, 2.5 mm. Head strongly transverse, narrower 

 than thorax ; face finely, closely punctate ; antennae distinctly shorter 

 than the body, the five apical segments conspicuousl}' shortened 

 although still longer than broad. Thorax stout ; mesoscutum closely, 



