axilhe yellow, black at tip ; mesoscutellum yellow, with a broad central longitudinal 
black band; nietauotum yellow, with a transverse black band and with two ; 
tudinal lateral bands; pedicel black with a large yellow spot above; abdomen yel- 
low, the joints above edged with black ; front and middle legs entirely yellow, except 
that the middle coxa; and trochanters are tinged with brown at base; hind coxae 
black, with a forked yellow stripe outside and a broad yellow band inside ; hind !'••- 
mora yellow, inner disk edged with black, outer face with a short oblique tapering 
black stripe; hind tibisB and tarsi yellow, the former with a brown shade on the 
edge toward the femora ; wings slightly cloudy, veins yellow; stiginal club entire. 
Described from 1 $ collected at Fort Madison, Iowa, by Dr. A. W. 
Hoffmeister. [C. V. E. Coll.] 
5. (4) Spilochalcis odontotae, n. sp. 
Male. — Length of body, 2.4 m ' n : expanse of wings, 5.4 mm . General color fight lemon- 
yellow; llagellum of antenme with a strong ferruginous tinge; occiput, black: pro- 
notum with a small black spot on either side ; mesocuium with a median faintly-de- 
fined black spot : mesoscutellum with a similar well-defined spot ; borders of all mes- 
onotal sutures black, the posterior and outer borders of the scapuhe more widely 
edged with black than the other parts; metanotum and metasternum with blackish 
patches; pedicel nearly white, semi-transparent; abdomen, honey-yellow, each seg- 
ment edged with black, second segment bright lemon-yellow ; legs nearly white ; hind 
coxae with a dusky spot at internal base ; teeth of hind femora black, and both hind 
femora aud tibiae faintly mottled with ferruginous. Wings clear; veins nearly 
black : stiginal club slightly notched. 
Described from 1 $ specimen, bred July 31, 1884, from the pupa of 
Odontota scutelhwis, mining leaves of Robinia pseudacacia at Washing- 
ton, D. 0. [C. V. R. Coll.] 
6. (5) Spilochalcis delira, (Cress). 
This species was described by Cresson from a male specimen collected 
in Texas by Belfrage. Two females studied in this connection, one 
taken by Mr. Schwarz in Florida (Haw Creek), in July, 1883 [Dept. 
Agr. Coll.], and the other collected on cotton by Mr. Patton, ;;t Selma, 
Ala., October, 1881 [C. V. R. Coll. J, seem without much doubt referable 
to this species, and 1 so place them pending an actual comparison of 
specimens. 
7. (6) Spilochalcis albifrous (Walsh). 
This is the species described by Walsh (Trans. 111. State Agr. Soc. iw, 
1861) as a secondary parasite on his Pezomachus minimus, bred from the 
army worm (Leucania unipuncta, flaw.). It was originally described as a 
Chalets, but evidently belongs in Spilocltalcis. It is represented by one 
poor specimen. [C. V. R. Coll.] 
Genns Ghalcis Fabr. 
Head short, triangular ; antenna', inserted a little below the middle of tin 
their bases but slightly separated, and the scape entirely contained within t ; 
tennal groove; post marginal vein of the fore wring than the marginal . 
domen almost Bessile, oblong, snbtriangnlar ; anterior 3 ibfusiform, posterior 
ovate, with a crenate lower margin; middle tibia' each with a spur at tip; | 
rior tibia' prolonged at tip into a spur. 
