30 
ish-yellow, shaded dorsally with brown ; tibia? yellow ; tarsi fuscous ; middle coxa? 
black at base, rest brownish-yellow ; femora black with metallic luster, and with a 
ventral longitudinal yellow line ; tibiae yellowish, with a dorsal dusky streak; tarsi 
dark fuscous ; hind coxae and femora shiuiug black, light at joints ; tibia) dirty yel- 
low, lined dorsally with brown : tarsi blackish ; antenna? black with light hairs : wing 
A T eins dark brown. 
Described from 4 S specimens ( 2 imknown) bred, July 20, 1872, at 
Saint Louis, Mo., from the leaf curl of a miner and roller on Rhus copal- 
Una, probably Gracillaria rhoifoliella Cham. [G. Y. R. Coll.] 
52. (2) Elasmus nigripes, n. sp. 
Male. — Length, i.58 mm ; wing expanse, 2. ( Jl mm ; greatest width of fore wing, 0.27 mm . 
Differs from E. ravins in size and relative width of fore wing. The scutellar spot is 
small and narrow, and is not of so vivid an orange color as in E. varius. The front 
coxa 3 are black, femora and tibia? earthy yellow, with many black hairs, which on 
the femora obscure the real color: tarsi dusky ; middle and bind coxa>, femora, tibia? 
and tarsi nearly black. 
Described from 1 $ (9 unknown) bred, from Lithocolletis gregariella 
Murtfeldt, at Kirk wood, Mo., by Miss Murtfeldt, 1881. [C. Y. E. Coll.] 
53. (3) Elasmus albicoxa. n. sp. 
Male. — Length, 2.00 1UTn (?) ; wing expanse, 4.28 mni ; greatest width of fore wing, 
0.48 mm . The specimen from which this description is drawn has lost its abdomen, but 
the other characters are sufficiently marked to found a species. It differs from the 
preceding species iu the following points: The front is coarsely and sparsely punc- 
tured, but the punctures are more evenly distributed than in E. varius, extending 
down upon the face. The scutellar spot is broad and includes the tip of the mesoscu- 
tellum as well a* the metascutellum. The leg coloration is as follows : Front coxa? 
nearly pore white, slightly tinged with brownish just at base ; femora yellowish-white, 
with a longitudinal streak of brown on the dorsal outer side ; tibiae tinged with 
brown, tarsi dusky: proximal half of dorsal surface of middle and hind coxa? shiny 
black, rest white: femora yellowish- white, with a longitudinal blackish streak; tibia? 
whitish, with fine brown longitudinal lines ; tarsi nearly black. 
Described from 13(9 unknown) found in jar with eggs of Limenitis 
dissippus Godt., at Kirkwood, Mo., 1871 (?). [C. Y. E. Coll.] 
54. (4) Blasmus pullatus, n. sp. 
Male. — Length, l.39 mm : wing expanse, 3.49 111 " 1 ; greatest width of fore wing, 0.46 mm . 
Entire surface of body shining black in color, except the antennal pits and the im- 
mediate region of the mouth parts, which are honey-yellow ; all coxa? and femora black, 
except that the femora are tipped with yellow-brown ; anterior tibia? yellowish : tarsi 
dusky : middle and hind tibia? yellow-brown at tip ; tarsi dark. 
Described from 16(9 unknown); bred from Tineid leaf miner on ap- 
ple (Tischeria malifoliella f) at Kirkwood, Mo., April 1,1871. [C. Y. R. 
Coll.] 
55. (5) Elasmus tischeriae, n. sp. 
Female, — Dimensions the same as with E. varius. Differs from this species in the 
following respects: Headless densely punctate and mesonotum more markedly scaly 
iu appearance. Scape of antenna? light yellow. Metanotum and base of first joint of 
abdomen metallic-green. Abdomen with a continuous longitudinal dorsal black 
stripe, which widens on the last segment and includes the ovipositor ; remainder of 
