8. (1) Chalcis ovata Say. 
A number of specimens of this species occur in the collections. ,They 
vary greatly in size (between 6™™ and 3™™ in length), and were bred from 
the following insects : 
Thyridopteryx ephemereformis.—Specimens were bred October 14, 
1882, from bags of this species collected at Washington, D. C. 
[Dept. Agr. Coll.] 
Apatura clyton.—Specimens were bred, September 17, 1878, from the 
pupe of this species collected at Columbia, S.C. [C. V. R. Coll.] 
Aletia xylina.—Many specimens bred from pup of this species, 
from August 4 to September 10, 1879, and during subsequent 
autumns, received from various southern States, especially Ala- 
bama and Texas. [O©. V. R. and Dept. Agr. Coll.] 
Desmia maculalis.—Missouri (no date). [C. V. R. Coll.] 
Oacecia rosaceana (?).—One very small specimen bred June 12, 1873. 
(C. V. R. Coll.] 
Gelechia galle-solidaginis.—Missouri (no date); a very small speci- 
men. [C. V. R. Coll.] 
Botis alnialis Riley MSS. District of Columbia, October 8, 1883. 
[Dept. Agr. Coll.] 
§ (2) Chalcis robusta Cresson. 
This species was described by Mr. Cresson (Proe. Ent. Soc. Phila., iv, 
1865, p. 101) from four Cuban specimens. There is one specimen in Pro- 
fessor Riley’s collection which agrees perfectly with the description, and 
which was bred by Mr. Hubbard, September 14 or 15, 1881, at Crescent 
City, Fla., from a cocoon of Lagoa opercularis. Mr. Hubbard, also, in 
June or July, 1852, bred another specimen of this insect from a chry- 
salis of Papilio cresphontes, also at Crescent City. The chalcid issued 
from a large circular hole cut through the thorax of the pupa. [Dept. 
Agr. Coll.| 
10. (3) Chalcis columbiana, n. sp. 
Female.—Length, 5™™, Head and dorsum of thorax black, with whitish hairs and 
farge close punctures; scape of antenne ferruginous; tegule, yellowish-white; 
- abdomen, ferruginous, with the last joint black, and the dorsum of the last five joints 
alse black; front coxe black, middle and hind ferruginous; middle femora with a 
black central spot; hind femora ferruginous, with a yellow spot at tip; tibise with a 
yellow spot at either end. Wings hyaline, veins dark brown. 
Described from 1 2 collected in District of Columbia July 10, 1880. 
{C. V. R. Coll.] 
Comes near description of C. coloradensis Cress., but may be distin- 
guished by its ferruginous hind coxe and basal abdominal joints. 
Al. (4) Chalcis tachinz, n. sp. 
Female.—Length, 4.4™™; expanse, 7.6™™. This species comes close to C. coloradensis 
Cress. General color biack; tegule yellow; all legs ferruginous, except cox; mid- 
dle femora and tibixe with a dusky band in center; teeth of hind femora black; hind 
femora with a yellowish spot at apex; hind tibiz with a blackish stripe ventrally. 
