190S] Bnic.s, Xorth American Parasitic H i/mciioptera. VII. 161 
FAMILY EULOPHID^. 
Chrysocharis aeneus sp. nov. 
Female. Length 1.5 mm. Shining- greenish black, the antennal 
scape and pedicel and most of the legs except sometimes the anterior 
femora, yellow. Head very flat, attached to the thorax near its upper 
side ; viewed from the front it is one-third higher than broad. Front 
with a deep longitudinal depression above the insertion of the antennae 
which is however, markedly narrowed above the middle of the front. 
Antennae inserted close to the clypeus ; 9-jointed, with one ring-joint ; 
scape stout, reaching one-half way from its insertion to the vertex ; 
pedicel one-third as long as the scape, contracted basally ; ring-joint 
so small as to be scarcely discernible; funicle joints three, about 
equal, nearly quadrate or slightly moniliform when seen in side view ; 
seen in another plane they grow thicker apically the third being 
nearly twice as broad as long and as wide as the first joint of the ovate 
club ; second club-joint much narrowed apically, third extremely small, 
pointed and appearing as an appendage of the second. Eyes small, 
oval, bare ; separated by three-fourths their length from the base of 
the mandibles. Thorax elongate, smooth ; pronotum as long as wide 
at the base, anteriorly narrowed, mesonotum with sharply defined 
furrows which converge posteriorly^ where they are very nearly con- 
tinuous with two parallel grooves on the scutellum, metanotum with 
a delicate median carina which forks at the extreme tip, curving out 
ward and forward to form a lateral divergent carina which terminates 
basally near the lateral margin of the scutellum. Abdomen sessile, 
as long or but little longer than the thorax and slightly flattened ; 
first five segments of about equal length, slightly increasing in width 
to the fourth ; apex rounded, ovipositor not projecting. Legs slender, 
yellow, except the coxae which are black, and the anterior femora 
which are piceous, except at the tip ; posterior tibiae with a single spur 
about three-fourths the length of the first tarsal joint. Tarsi four 
jointed. Wings hyaline, marginal vein about one-fourth longer than 
the submarginal ; stigmal clavate, one-fourth the length of the margi- 
nal ; postmarginal faintly indicated but extending for a considerable 
distance. 
Described from a large number of females bred by Dr. George 
P. Barth at Milwaukee, Wisconsin, from the cocoon of a species 
of Crabro. 
