11 
band on the hind tibiz, and the male has wider yellow bands at all the 
knees, and the tarsi are lighter in color. 
Variety b.—In this variety the hind femora become entirely honey- 
yellow. Many specimens occur among those bred from G. galle- 
solidaginis in Missouri; and an intermediate form, in which the hind 
femora have a blackish shade, also occurs among the same lot of speci- 
mens. 
It was this variety which was popularly described by Professor Riley 
in the first Missouri Entomological Report (p. 176) as “the Inflating 
Chaleis”; giving an account of its habits, in which it does not differ 
from other members of the genus, except that, inasmuch as its host is 
a gall-inhabiter, it has to escape from the gall as well as from the in- 
flated skin. All the individuals, according to the report just mentioned, 
“escape through a single minute hole which must be made by one of 
their number”; but it has also been observed that where the host has 
already prepared the opening for its own future exit, before succumbing 
to the attacks of the parasites, the latter make use of this opening for 
their egress. [C. V. R. and Dept. Agr. Coll.] 
14. (2) Copidosoma vagum, n. sp. 
Female.—Length, 1.4™"; expanse, 2.8"™; greatest width of fore wing, 0.46™™. 
Club of antennz delicately curved, not obliquely truncate, as long as the two pre- 
ceding funicle joints together, Punctures of head round, of mesoscutum and axilla 
nearly round, somewbat polyhedral; of scutellum longitudinally aciculate; abdomen 
slightly transversely shagreened at base; ovipositor one-third as long as abdomen. 
Color: Antenne black, scape with metallic luster ; head and pronotum dark and some- 
what purplish; mesoscutum bright greenish; scutellam coppery; abdomen shining 
greenish-black ; all cox and femora shining black; front and middle femora, yel- 
lowish at tip; all tibiw yellow, middle and hind with a brown ring near base, and 
fore with a brownish shade above ; front and hind tarsi dusky ; middle tarsi and tibial 
spur light yellow. 
Male.—Length and proportions about the same as with?, except that the wings 
are somewhat longer and stronger. Club twice as long as sixth funicle joint, first 
funicle joint twice as long as pedicel. Punetation as inQ; abdomen more strongly 
shagreened; mesoscutellum with a faint median longitudinal carina ; colors as with 
the 2, except that the hind tibiw are almost entirely black, and the front tibiew en- 
tirely brown; hind tarsi white, except last two joints. 
Described from four 2’s and many ¢’s bred from the larve of Gelechia 
pseudacaciella Chambers, in Missouri in May. [C. V. R. Coll.] 
15. (3) Copidosoma celeene, n. sp. 
Female.—Length, 0.93@"; expanse, 2.286"; greatest width of fore wing, 0.37™™. 
Antenne, rather short; club of the obliquely truncate type; pedicel three times as 
long as first funicle joint, which is thicker than long; funicle joints increasing 
slightly in length, and in about the same ratio in thickness ; club as long as the five 
preceding funiclejoints together. Head and mesoscutum with roundish polyhedral im- 
pressions, those on the head becoming somewhat elongate transversely towards occiput, 
and those on scutum longitudinally towards scutellum ; axille with the same, becom- 
ing transversely aciculate towards tip; punctures of mesoscutellum roundish at im- 
mediate base, but longitudinally aciculate elsewhere. Color: Head, mesoscutel, ax- 
illw and tegule dark with a coppery luster; mesoscutum dark golden-green ; anten- 
