Chalcidoid Parasites 151 

1910] Girault and Sanders 
joint by far the longest, cylindrical, narrowed or constricted obtusely at 
the middle, over half the length of the scape, subequal to the club in length, 
somewhat shorter, with an indication of a petiole or peduncle at its apex 
and a third longer than the second funicle joint; the latter slightly con- 
stricted at proximal third, with a more distinct petiole, the third and fourth 
funicle joints subequal, each a fourth shorter than the second funicle joint; 
funicle joints 5 and 6 subequal, each a fourth shorter than either the third 
or fourth funicle joints, and each about half the length of the proximal 
funicle joint. Petiole or peduncle of joints 3, 4, 5, and 6 of the funicle 
distinct but not long; funicle joints 5 and 6 acute at their disto-lateral 
angles, the others less distinctly so; club moderately long, tapering to a 
point, distinctly shorter than the scape, its proximal joint somewhat shorter 
than the sixth funicle joint, but nearly as wide, its second joint slightly 
longer and as wide, its third joint conical, with a narrow truncate apex, 
not quite as long as the proximal joint, and the fourth distal joint minute, 
nipple-like, resembling a small conical spur and terminating in a seta. 
(From 80 specimens.) 
Types: Accession No. 40,250, Illinois State Laboratory of Natural 
History, Urbana, Illinois, 32 ¢’s, 81 $’s, tagmounted. 
Cotypes—Cotype No. 12,240, United States National Museum, Washing- 
ton, D. C., 2 o’s, 2 9’s, tagmounted. 
Viewed with a hand-lens, the female is uniformly glossy black with a 
conic-ovate, smoother abdomen which projects to the tip of the wings, 
marked yventrad near base with brownish-yellow, the wings hyaline with 
brownish-black marginal, postmarginal and stigmal veins, the latter dis- 
tinctly tapering from the thicker base to apex; the legs, excepting black 
shining cox, brownish-yellow marked indistinctly with darker, the lateral 
aspect of the posterior femora dark; the antenne black with the scape 
dark brownish. Eyes and ocelli dark garnet, the former with a discal 
blackish spot, not distinct; the pubescence indistinct on antennze and body, 
giving the former an indistinct greyish appearance in direct light. The 
sculpture of head and thorax appears distinctly as a very slight, uniform 
“and delicate roughening. The antennal flagella are about as long as the 
thorax. The sculpture appears rougher along the surface of the metanotum. 
The male appears the same as the female, excepting the shorter, flattened, 
depressed abdomen containing a moderately large, brownish-yellow spot in 
the middle near base, and the slenderer, loosely-jointed, softly hairy anten- 
nal flagella, the pilose pubescence of which is distinct and yellowish grey. 
When viewed with the naked eye, the parasites look like black gnats with 
long bodies, indistinct brown-yellow legs and indistinct clear wings which 
are folded along the back in the usual position for the Pteromalide. They 
appear a third smaller in size than Pteromalus pwparum (Linn.) for 
instance to the naked eye and the sexes cannot be certainly separated with- 
out enlargement. Through a lens, however, the antennal and abdominal 
characters previously mentioned, together with the exserted genitalia of the 
male, allow them to be distinguished with readiness. To some extent, to 
