Article beginning on page 403.
Psyche 6:403, 1891.

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authors be placed in a separate genus,
Cerastoma ; others do not favor the divi- sion of the genus on sexual grounds.
Lacinius fexanus, nov. sp.
Length of body
3.6 mm., width of body 3. mm.
Length of
femur I, I. mm., femur 11,3.1 mm., femur IV, 2.1 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 111; 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 11 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,
179-
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 lows 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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[February 1893-
white, containing tubercle i and a very narrow dark dorsal line. The anal plate (i. e., joint 14 or the tenth abdominal segment) is vinous. Lateral and subventral tubercles pale.
Thoracic feet black.
Third stage. - Head rounded, median
suture deep, shiny black, hairy ; width 1.8 mm. Warts rather large, each with a hair, and other somewhat shorter hairs arise from the body. Color vinous black with pale yellow dorsal patches on joints 3 and 4, 6, 9 and 10 and 13 anteriorly, enclosing warts i and ii. A dark dorsal line, each side of which are a few yellow mottiings on the dark segments ; subventral warts largely yellow, the others concolorous with the markings except row i which is dark on the yellow segments.
Setae all blackish. Later, joints 5 and 12 are seen to be a little enlarged dorsally, a narrow, broken, waved line appears along warts i in the yellow markings, the yellow patch on joints g and 10 extends faintly on joint I I, there is a broken, irregular, yellow, super- stigmatal line, distinct only on the yellow- marked segments and some rather more
continuous yellow mottlings along the sub- stigmatal ridge.
Fourth stage. - Head rounded, clypeus
depressed, median suture deep; hair short, dense, white; color black, slightly shiny, brownish centrally in the depression around the median suture; width 3.0 mm. Warts
rather large, rows i and ii on joints 3, 4, 6, g, 10 and 13 and all the subventral warts yellow, the others black. Joints 5 and 12 enlarged dorsally, velvety black. Color purplish
black, a broad, yellow, dorsal band except on joints 5 and 12, containing a broken, triple, dorsal line, fainter on joints 7, 8 and 11. The rest of the body is purplish black, the sub- ventral region included. Hair dense, white, consisting of fine short hairs from the body, with single, slightly longer and larger ones from the warts. As the stage advances a
marked change takes place. A broad pale
gray dorsal band, containing very faint triple dark line, obsolescent and broken; warts i and ii orange, except on joints 2 and 5, row ii on joints 3, 4, 6, 9, 10 and 13 broadly orange ; a broad, pale bluish, subdorsal band, heavily mottled with vinous black; joints 5 and 12 dorsally, and lateral spots on all seg- ments (most distinct on joints 3-s), velvety black. A broad, broken, deep orange, stig- matal band, divided by an irregular black stigmata1 line and consisting of orange spots spreading from the warts of rows iv and v and adjacent mottlings, barely confluent. Venter blackish ; thoracic feet shiny black. Cocoon.-Not different from the house
made at the end of each stage, except that there are a few transverse threads to support the pupa.
Pupa.-Small but robust. Dorsal outline
arched, ventral nearly straight, rounded at both ends; cremaster, a long spine of even thickness throughout. Smooth, shining;
abdomen very slightly punctured. Color
red-brown, darker ventrally and dorsally, nearly black on the thorax and cases, with a green tinge on the latter. Length 13 mm. ;. width 4.5 mm. There are two broods each
year.
Food$/ant.-Willow (Salix).
Habitat.-Oregon and Washington west
of the Cascade range and, probably, also western British Columbia. Found by Prof. 0. B. Johnson at Seattle, Wash. Larva
from Portland, Oregon.
THE MORPHOLOGY AND PHYLOGENY OF IN-
SECTS.
The Annals and magazine of natural his-
tory published in December last a translation of the concluding general portion of a me- moir by N. Cholodkowsky on the embryonal development of Phyllodromia germanica
(Mkm. acad. St. Pdtersb., 7 sdr., v. 38, 1891) which closes with the following summary. It will prove interesting and suggestive to American entomologists.
I. The head of insects contains more than four protozonites, probably six, of which one is preoral, but the rest are postoral.



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