Cambridge Entomological Club, 1874
PSYCHE

A Journal of Entomology

founded in 1874 by the Cambridge Entomological Club
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Article beginning on page 236.
Psyche 6:236, 1891.

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PSYCHE.
In the workers of Termes juvi'es
the oenocytes are much more difficult to detect. They are flattened cells im-
bedded in the pleural hypodermis near
the stigmata. It is their size which
mainly distinguishes them from the hy-
podermal cells ; the latter measuring
only 8 P while the former measure 37 P,
THYSANOPTERA. Oenocytes occur in
compact metameric clusters in a species
of Phloeothrips very common on the
blossoms of Ch~ysanthemwn. leucan-
themum during July and August.
These cl~~sters occur in at least six of the abdominal segments, possibly in eight,
but as they diminish in size very rapidly from before backwards, I am not sure
that I have found them in the 7th and
8th metamere& The clusters lie in the
pleural region well out in the body cav- ity and each consists of some 8 or 10
cells which from mutual pressure are
often very irregular. ,The cells measure 18.5-26 P in diameter - their nuclei
3-6 P. They are perfectly distinct,
from the fat-body and blood corpuscles.
A NEW GENUS AND SPECIES OF TABANIDAE.
BY J. M. ALDRICH, BROOKINGS, SOUTH DAKOTA. The general appearance of the fly is
that of a particularly fine large silvery Hippoboscid, with brown wings. Nev-
ertheless, an examination shows it to be truly Tabanid in every respect ; in fact, I was at some loss for a while to fix
upon a set of generic characters wl~ich
would clearly separate it from all the
present genera of Tabanidae. The vena-
tion is norn~al; the antennae resemble
Pangonia in shape and number of an-
.
lnulations; the face is that of Chrysops. 'The upper corner of the eye, making
an angle of abo~~t 70 degrees, and not
iz the least rounded off at the tip, but rather produced a little in a very fine
point, beyond which is an impressed
Jine, running to the occiput, is one of
the best characters. The general pro-
portions of the body, also, are different from those of any other members of the
family known to me.
Its habits are unknown, but from its
appearance the conclusion lool<s prob-
able that it lives like a Hippoboscid
upon some bird or mammal. Still,
there are no modifications of structure
that give strong support to this theory. Its claws are disti?ctly larger than those of Tabani of its size. and the large pits at the bases of the hairs on the first and second antenna1 joints seem to indicate
an unusual development of the sense of
touch in this region; both of which
peculiarities are not without weight.
Spurs present on hind tibiae, absent from front ones.
Eyes naTrow, terminating above
in an acute angle. Ocelli present. Front broad in female, the callosity longitudinal. .
Proboscis in repose directed forward.
Tho-
rax strongly arched, subglobular. Abdomen (from tip of scutellum) not longer than, and head but about half as wide as, the
thorax.




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March 1892.1 p.!? 2'-c'az?. 237
G. /z~$oboscoides, n. sp. . Head almost
~lnifol-m light yellow? between the ocelli tinged with brown. Eyes black, bare? not approximated to each other. Front broad, wider anteriorly, with yellow pollen on the sides, a longitudinal callosity more whitish, extending from the ocelli to the beginning of the antenna1 prominence; in dried speci- mens a variable impressed line on exch side of this callosity. Antennae situated on a distinct transverse prominence, yellow, the third joint more reddish; second joint d- most annular, third tapering quite symmet- rically, composed cf eight annuli. Face
yellow, strongly protuberant, bhining, Pro- boscis reddish, directed forward, reaching but little beyond the antennae. *Palpi slen- der, long, yellow, with yellow pollen and abundant blackish hairs. Posterior orbits wide, conspicuo~~s, with yellow pollen.
Thorax whitish yellow below, more brown- ish above, with minute? appressed, silvery yellow pile; on the anterior border just a trace of a slender, median, reddish line; on each side a broad, indistinct reddish stripe, interrupted along the transverse suture. Scutellum short, as wide as the head,
yellow.
Abdomen short? broad? covered with ap-
pressed shining silvery-yellow pile; seven visible segtnents, the last narrow, but little protruded, showinq a distinct en~argination. Legs uniformly light yellow, the claws
black except at base. Spurs of moderate size on middle and hind tibiae.
Wings hyaline, with a deep brown cloud
extending across them, incl~~ding the follow- ing parts : the stigma, all of the marginal cell except the proximal end, all of first sub- marginal, all of the second except tip, all of the first posterior except postei-ior half of the distal end, the proximal half of the discal, all of second basal, and middle of anal. There is a characteristic small clear spot in the second basal, at the anterior distal angle. The cloud is clearly defined behind, but fades more gradually in front. The branch of the thii-d Iongitudinal vein shows a tendency to emit a stump of a vein. In one of n~y speci- mens the vein separating the third and fourth posterior cells is obsolete for the greater part of its course.
Length 12 to 13 rnm. Width across ex-
panded wings, 28 mm.
Described from two female speci-
mens, received from Mr. Henry G.
Klages, Jeannette, Northumberland
Co., Penn.
FIG. 2. FIG. 3.
Fig. I shows the insect from above?.
the wings being diagrammatic.
Fig. 2
is a side view of the ?lead.
Fig. 3 an
antenna.
MISCELLANEOUS NOTES.-Klemensiewicz,
at the last December meeting of the zoo- logical and botanical society of Vienna, stated that in the preceding summer he had observed hundreds of Pieris rapae flying



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