1909] GIRAULT —OLIGOSITA AMERICANA 109 
tant from the eye margins, the caudal ocelli slightly farther apart than either is from 
the respective eye margin or from the cephalic ocellus. 
Legs normal, the intermediate tarsal joint of the intermediate and caudal legs 
slightly the shortest, the proximal and distal joints subequal; proximal and inter- 
mediate tarsal joints of the cephalic legs subequal, slightly shorter than the distal 
joint. Spurs inconspicuous, excepting on the caudal tibiae, single. Mandibles 
apparently tridentate, the two outer (lateral) teeth largest, subequal. 
Antennae 7-jointed, with a single ring-joint, a 1-jointed funicle and a 3-jointed 
club, clothed with moderately long, sparse setae. Scape slightly convexed ventrad, 
somewhat longer than the pedicel, ring-joint and single funicle joint combined, 
subequal in length to the club; pedicel obconic, longer than the funicle joint or any 
of the club joints; ring-joint minute, transverse; funicle joint longer than wide, oval, 
longer than either of the club joints, excepting the distal one; the 3-jointed club ovate, 
the proximal and intermediate joints subequal in length, the intermediate joint wid- 
est, the distal joint slightly the longest, conical, intermediate in length between the 
funicle joint and the pedicel. 
Abdomen moderately stout, longer than the thorax, ovate; ovipositor not 
exserted. 
(From 5 specimens, $-inch objective, 1-inch optic, Bausch and Lomb.) 
Male: Unknown. 
Described from five females mounted in balsam received from Mr. R. L. Webster, 
Towa State College of Agriculture and Mechanic Arts, Ames, Iowa, and labelled as 
follows: ‘“‘Oligosita americana Ashmead MS. Urbana, Illinois, 1 April, 1905; 
emerged 27th May, 1905. R. L. Webster.” The specimens were described while 
mounted in balsam; the character of the sculpture, however, was obtained after- 
wards by clearing in xylol, then remounting in xylol-balsam for permanent preserva- 
tion. 
Type: Accession No. 41078, Illinois State Laboratory of Natural History, Ur- 
bana, Illinois, 5 2’s in xylol-balsam (1 slide). 
There are but three other species of the Genus Oligosita now known, all Euro- 
pean, the second described species — subfasciata Westwood — having been removed 
in 1904 by Ashmead to form the type of the genus Westwoodella Ashmead. ‘The 
three remaining European species are collina Haliday (Walker), nodicornis West- 
wood and staniforthii Westwood. The hosts of these species are as yet unknown and 
nothing is known concerning the biology of any species of the genus. 
