374 
Journal of Agricultural Research 
Vol. XXI, No. 6 
CLASSIFICATION AND DESCRIPTION 
Anastatus semiflavidus belongs to the hymenopterous superfamily 
Chalcidoidea, family Encyrtidae, and subfamily Eupelminae. It was 
described as a new species by A. B. Gahan, 1 of the Bureau of Entomol¬ 
ogy, from type specimens reared from Hemileuca oliviae eggs by F. H. 
Gates at Koehler, N. Mex. Mr. Gahan’s description of the adult follows. 
adult 
Anastatus semiflavidus , new species. Female [PI. 68, A].—Length, 2.3 to 2.5 mm. 
Head strongly punctate; eyes elliptical; antennal pedicel about two-thirds the length 
of the first funicle joint; ring-joint transverse; first, second, and third funicle joints 
subequal, following joints shorter; mesoscutum with the median and lateral lobes 
alike faintly scaly-punctate and hairy; the median lobes more distinctly sculptured 
bordering the lateral margins; scutellum and axillae very finely and closely punc¬ 
tured, the former precipitous posteriorly and the posterior face smooth; propodeum 
smooth; mesopleurae mostly smooth, but with the anterior portion above scaly- 
punctate; postmarginal vein twice as long as the stigmal, the marginal a little more 
than twice the postmarginal; abdomen faintly lineolate, about as long as the thorax. 
Scape reddish-yellow, flagellum black; head brassy-green; mesoscutum, punctate 
area on the mesopleurae, posterior face of the scutellum, propodeum, hind coxae, 
and underside of the thorax metallic blue-green; scutellum and axillae varying from 
wholly pale orange-yellow to dark brown, with only the bases yellowish; remainder 
of the thorax reddish yellow; legs yellowish within and along the margins, blackish 
or brownish outwardly, the femora often tinged with metallic; wings fuscous, the 
base hyaline to the beginning of the marginal vein and a broad hyaline transverse 
band before the stigmal vein; abdomen yellowish above except the three apical seg¬ 
ments, which are darker and somewhat metallic; venter pale at base, brownish 
* medially and metallic apically. 
Male [PI. 68, B].—Head strongly punctate; antennal scape compressed and ex¬ 
panded beneath, pedicel very short, flagellum tapering slightly from base to apex; 
first funicle joint about twice as long as wide; following joints successively shortening; 
club scarcely as long as the two last funicle joints combined; mesoscutum and scu¬ 
tellum alike scaly-punctate, mesopleurae mostly smooth; propodeum smooth; post¬ 
marginal vein nearly as long as the marginal and a little more than twice the length 
of the stigmal; abdomen reticulately lineolate. Color dark blue-green; antennae 
black, the expansion of scape pale; abdomen beyond the first segment brownish-black; 
all trochanters, a line above and the apices of front and middle femorae, front tibiae 
outwardly for its whole length, basal third of middle and hind tibiae and the three 
basal joints of the middle and hind tarsi yellowish white; front tarsi and apical two 
joints of the other tarsi fuscous; remainder of the legs blue-green or blackish. 
Type-locality. —Koehler, New Mexico. 
Host.—Hemileuca oliviae . 
Type. —Cat. No. 18331, U. S. N. M. 
LARVA 
The freshly dissected larva (fig. 1) is dirty white in color with the body 
contents showing darker. When viewed dorsally, the general shape is 
elliptical, becoming slightly broader posteriorly. When viewed later- 
1 Gahan, A. B. descriptions of new genera and srEciEs, with notes on parasitic hymenoptera. 
In Proc. U. S. Nat. Mus., v. 48, p. 155-168. 1914. 
