A New Species of Chrysopa From Texas
International Journal of
hairs of the upper edge of the male fore tibiae are longer. The middle and hind coxae are black, the fore coxae more or less fuscous tarsi black, the remainder of the legs variable in color from fuscous to piceous. The front metatarsi of the male enlarged, ovoid, the distal third of the inner side is excised for the reception of the remainder of the tarsus, which thus is not attached at the tip of the metatarsus. The front tibiae of the males are somewhat thickened. Wings cinereous-hyaline, stigmal spot faintly brown, neuration normal.
-
A NEW COCCID ON ROOTS OF
RUBUS.
BY T. D. A. COCKERELL.
Pkenacoccus rubivorus, n. sp.m
--Hemispherical, with the form of a half-pea,
distinctly segmented, pale pinkish, thinly
covered with white mealy secretion; no cottony
appendages. Boiled in liquor potassae, they
stain the liquid amber yellow, and the skin
becomes colorless. Anal ring with 6 hairs.
Caudal tubercles very low and inconspicuous,
with short bristles. Legs and antennae very
pale brownish; claw with a small denticle on
inner side; digitules slender, with small
knobs. Antennae 9-jointed, formula
approxi69. Middle legs; femur -- trochanter, 22
mately 92135)6(47)8. The following
measurements are in
:
Antennae segments; (.) 36, (2.) .g, (3.)
48 (4") 39, (5.) 45, (6.) 43, (7.) 39, (8.) 3 (9.)
tibia, 74; tarsus, 9 claw, 7. Of course
these measurements will vary, no two
individuals being exactly alike.
The females studied contained very
welldeveloped embryos. These showed small
spines, round glands, and a small patch of
spines on each lateral margin of each segment.
/-lab. Beulah, New Mexico, about 8,000 ft.
alt., end of March, x9ox, on roots of tguus
str[ffosus Collected byWilmatte P. Cockerell.
This interesting species does not have the
superficial appearance of a Phenacoccus,
though the antennae and legs are as in that
genus. I suspect that when we know the
male it will turn out to be congeneric with
the little-known European Tetrura rubi
described by Lichtenstein, concerning which
see tnlomologist, I9OO, p. 86.
A NEW
SPECIES OF CHRYSOPA
FROM TEXAS.*
BY JESSE F. MCCLENDON.
Chrysopabimaculata, sp. nov. Length to
tip of wings I.5 mm-3.5 ram., Mar expanse
2 -25 ram.
Mouth short, antenna slightly shorter
(Contributions from the Zoological Laboratory of the
University of Texas, No. 9.)
rjun, ,9o,
than the wing prothorax broader than long
wings moderately narrow, anterior pair
slightly pointed, posterior more acutely, in
anterior wing divisory veinlet of third
cubital areole exceeding the first cross-vein of
the first radial sector.*
Face stramineous, vertex green, gular
region stramineous, segments of palpi black,
ineous, darker towards apex, first article with
a red longitudinal line above thorax green,
paler beneath, prothorax with a luteo-rufous
streak on each side from anterior to posterior
margin; abdomen green; legs pale green,
tarsi yellowish, ungues fuscous; wing veins
green, in anterior wing all cross veins black
or varied with black, in posterior wing costal
their articulations colorless, antennae
stram
The position of this veinlet has been noted in
descriptions of many species of Chrys@a, but examining
number of specimens of Chrysapa e:rterna, found it to
vary much to be of value in determining that
species. Whether it varies in C. bimaculata, unable
to decide account of the small number of specimens in
my possession.
cross-veins and a few others black,
pterostigma light green.
Coloration of alcoholic specimen: green
faded to pale yellow, line on first article of
antennae fuscous, streak on prothorax faded
out, black retained.
Four specimens from Laredo, Texas.
August, x9oo.
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