55 
lowish at base; head aiid mesonotum shining, very faintly shagreened; 
metanotum closely punctulate with areolets faintly indicated; abdomen 
shining, very faintly shagreened; joints 4 and 7 subequal in length; 
1 to 4 gradually decreasing in length ; stigma pitchy black, yellowish 
at proximal extremity. 
Described from three males reared from cocoon masses of Orgyia 
leucostigma. 
Habitat: District of Columbia. 
IT. S. National Museum type Xo. 3513. 
Genus APANTELES. 
Apan teles FoersteT. Verb. d. Naturhist. Ver. d. Preus. Ebeiul. u. Westpb. 1862, p. 245. 
Apanteles delicatus new species. 
Male. — Length 2.8 num.; expanse 6.2 mm. General color black; all 
legs, except coxa 1 , light reddish-yellow, hind tibiae somewhat darker 
at the tips; palpi light honey-yellow; face faintly punctate, with a 
slight incomplete median carina below insertion of antenna-; clypeus 
regularly rounded; metascutum with faint median longitudinal carina; 
abdomen rather coarsely punctate on first three joints ; remaining joints 
smooth; joints 1 and 2 with slight median carina, which is absent in 
joint 3; dorsal plate of first segment with somewhat rounded sides; 
pleura faintly shagreened. 
Described from two males reared from Orgyia leucostigma. 
Habitat: District of Columbia. 
U. S. National Museum type No. 3514. 
Genus PTEROMALUS. 
Pteromalus Swederus. Vetensk. Acad. Handl., 1795, T. 16. 
Pteromalus cuproideus new species. 
Female. — Length 3.5 "mm.; expanse (J mm. General color brownish- 
green; antennal scape rufous; funicle dusky; all legs except coxae 
light honey-yellow; teguhe darker honey-yellow; abdomen and meta- 
thorax concolorous with remainder of thorax and head, except that the 
basal two-thirds of second abdominal segment is blue or purplish, the 
second segment occupying a little more than one-third of the dorsal 
extent of the abdomen; joint 3 as long as 4 and 5 united; C> and 7 sub- 
equal, longer than 3, the terminal segment conical; head and thorax 
uniformly and rather coarsely punctate; metascutum with median lon- 
gitudinal carina and two curved lateral carina. 
Male. — Differs from female in possessing yellowish antenna- with 
scape black at extreme base; color somewhat brassy. 
Described from one male and one female reared from Orgyia leu- 
costigma. 
Habitat: District of Columbia. 
1 T . S. National Museum type No. 3515. 
Comes closest to Ashmead's P. acronyctm. 
