106 Psyche [June
A NEW SPECIES OF TELEXOMUS PARASITIC OX THE
EGGS OF TUSSOCK MOTHS.
By Charles T. Brues.^
The present species belonging to the very extensive Scelionid
genus Telenomus Mas reared from eggs of two species of Tussock
moths and sent to me by Mr. W. F. Fiske, in charge of the Gypsy
Moth parasitological laboratory of the U. S. Bureau of Entomology
at Melrose Highlands, Mass. It appears to be new to science and
as Mr. Fiske wishes to refer to it in a forthcoming publication, he
has requested me to prepare the description which is herewith
presented.
Telenomus fiskei sp. nov.
? Length 1 mm. Shining black; the legs, except coxae, honey yellow or
brownish-yellow, the femora piceous or fuscous; wings hyaline. Head
nearly four times as wide as thick antero-posteriorly. Ocelli in a curved
line, the lateral ones removed from the eye margin by less than their own
diameter. Head margined behind the eyes, the raised margin extending
over the vertex as a distinct carina for about a third the distance toward
the median line; behind this the occiput is margined, more distinctly so
on the sides. Vertex shagreened; the front below the ocelli smooth, and
highly polished, but with a shagreened sculpture on the sides below. An-
tennae black; 10-jointed, with a 5-jointed club. Scape brownish at base
and apex, reaching nearly to the vertex; pedicel brownish at the tip, fully
twice as long as thick at the apex; first flagellar joint fully as long as the
pedicel and as thick; second shorter, two thirds as long, the fourth broader
and more rounded; first four club-joints large, quadrate, equal; last a
trifle longer, and sharply conically pointed. Thorax as wide as long, very
convex in front, shining above, but thinly covered with a white pubescence.
No trace of parapsidal furrows. Mesonotum and scutellum very faintly
shagreened. Postscutellum finely rugulose-punctate. Abdomen short,
sessile, about as long as the thorax, first segment coarsely longitudinally
striated, four times as broad as long at the middle; longer at the sides,
and with a large fovea at each anterior angle; second segment with a
basal series of longitudinal striae as long as those on the first segment
medially, but becoming shorter toward the sides; about one third longer
than wide; following segments each very short, together scarcely over one
* Contributions from the Entomolofjical Lahoratory of the Bussey Institution.
Harvard University, No. 21.
BioStor
