Article beginning on page 402.
Psyche 6:402, 1891.

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,402 PSYCHE. [February 1893.
Eyes greenish-black with brownish reflec- tions. Antennae greenish-black, the articu- lations pale.
Abdomen with the overlapping caudal and
pleural margins of each segment paler green- ish-black, these paler markings enlarged anteriorly on sterna 6, 7, and 8, to form very obtusely triangular pale spots. A large circular pale spot on sternum 9 reach-
ing the caudal margin. The elevated cepha- lic margin of sternum 10 pale in median
portion.
Fossal membranes deep brown. Femora I
and 2 deep sage green, lightest on proximal thirds of caudal faces. Posterior femora black at tips, passing into dark brownish- green on the external face, and olive-green on the internal face and in tibia1 groove; dusky herring-bone markings on both faces; a dusky spot on the proximal end of the
upper groove and another with oblique edges one-third the distance toward tip.
Tibiae deep greenish-black; the posterior shining black at proximal end with a narrow sage-green annulus beyond, widest inside. Spines black. Tarsi deep greenish-black
above, paler beneath, especially on the
callosities and pulvilli.
A NEW AMERICAN LACINIUS.
Lacinius is a genus of Phalangiidae.
It was erected in 1876 by Thorell for P. horridus Panz. (Sopra alcuni Opilioni
d'Europa e dell'Asia occidentale. Ann.
mus. civ. st. nat. Genova, vol. viii,
1876). Simon (Arachnides de France
tome vii, 1879) united it to Acantho-
lopus Koch, I think, on good grounds.
But as Acantholophus is preoccupied, I
believe, by MacLeay in Coleoptera, it
may be best to use Lacinius ; especially so since Simon considers P. horridus
Panz. as the type of Acantholophus.
Lacinius is closely related to
certain
species of Oligolophus by the spinous
eye-tubercle and anterior margin of
cephalothorax; also by having promi-
nent spines on the femora of the palpi.
It differs in having the eye-tubercle
more remote from the anterior margin
of the cephalothorax. I believe the
American forms can be farther separated
from Oligolophus in not having false
articulations in the metatarsi.
The legs
are shorter than in Oligolophus. Two
species of Oligolophus have been de-
scribed from U. S., 0. $ictus Wood
and 0. ohioensis Weed. The latter I
should place in Lacinius; it resembles
the European L. s~osus BOX. (06-
tusidentatus Koch) ; while the species
which I describe below has more resem
blance to the typical species of the
genus L horridus Panz.
Lacinius, Oligolophus, Mitopus and
Phalangium form a tribe of the Phalan-
ginae, distinguished by having a
prominently spinous eye-tubercle and a
group of spines on the anterior margin
of the cephalothorax. This tribe may
be called Oligolophini. It may be
divided into two groups, according to
the presence (Lacinius, Oligolophus)
or absence (Mitopus, Phalangium) of
prominent spines on the femora of the
palpi.
Phalangium longi$d$is Weed
would according to some European




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February 1893.1 PS2'-CHE. 403
authors be placed in a separate genus,
~Cerastoma ; others do not favor the divi- sion of the genus on sexual grounds.
Laci&vs texas, nov. sp. ' Length of body 3.6 mm., width of body 2. mm.
Length of
femur I, I. mm., femur II,~.I mm., femur IV, 2. J mm., leg I, 6. mm. Color gray, mottled with white and brown ; cephalothorax and dorsum of abdomen gray, mottled with brown and white spots ; the vase-shaped mark barely visible; venter grayish white, a black line on the sides. Cephalothorax with some scattered spines and three large ones on the anterior margin, the median the largest; on the sides are three spines projecting between the legs. Eye-tubercle near the hind margin of the cephalothorax, nearly twice its diameter from the anterior margin, with two rows of four large spines. The posterior edge of each dorsal segment of the abdomen provided with a row of about ten white spines. Palpi quite large, white with some brown spots. The
femur with about seven large and several smaller white spines on the under side, the end enlarged internally and covered with short, stiff, black hairs,. The patella is pro- longed, the inner side and prolongation being covered with short, stiff, black hairs.
The
tibia is enlarged at the end on the inner side and covered with similar hairs ; on the under side are two white spines, like those on the femur. The tarsus (5th joint) is about as long as the two preceding, slightly curved, and provided with stiff hairs and a simple claw at end.
Legs pale with brown
bands ;
two on the femur, on the patella, tibia and metatarsus one each, and one at the base of the tarsus. The legs are all short, especially I and JII; metatarsus I shorter than tibia I; there are no false articulations in any of the metatarsi. The coxae bear several (3-6)
spines, one or two on each coxa being very large; several prominent spines at end of femur, patella and tibia. The femora are round except IJ which becomes quadrangular near tip ; all the tibiae are quadrangular, each angle being furnished with a row of small spines ; the patellae are somewhat four-sided, and the small spines are in rows, as also on the femora. The tarsi consist of many short joints.
The tips of the claws of the mandibles
are black. The structure of the coxae and sternum is similar to that of Oligolophus, but the sternum is a little shorter. The lateral pore is not visible from, above.
Habitat, Eastern Texas.
THE LARVAL STAGES OF ICHTHYURA MULTNOMA DYAR. BY HARRISON G. DYAR, BOSTON, MASS.
Ichthyuru multnoma Dyar.
1892-Dyar, Canadian entomologist, xxiv,
= 79-
First larval stage.-Head round, shining
black with a few hairs ; width 0.5 mm.
Body
somewhat flattened, with long pale and black hairs rising singly from large concolorous tubercles; color sordid grayish, tinged with dark vinous on joints 2, 5, 7, 8, 11 and 12 over the dorsum. Feet normal, the thoracic dark, the abdominal concolorous with the body. As the stage advances, the whitish spaces on the back become nearly white and the piliferous tubercles come out black and distinct, in three rows on each side. At the end of this, and of each following stage, the larva spins a house of thread and leaves in which it molts, and in which it remains dur- ing the succeeding stage, when not eating. The larvae are solitary.
Second stage.-Head as before ; width 0.9 mm.
Body flattened, with deep segmental
incisures ; piliferous tubercles large, concolor- ous at first, but later black; setae short, black. Color blackish vinous except the dorsum of joints 3, 4, 6, 9, 10 and 13 which is greenish



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