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PSYCHE

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This is the CEC archive of Psyche through 2000. Psyche is now published by Hindawi Publishing.

A. L. Melander.
Some Acalyptrate Muscidae.
Psyche 20(5):166-169, 1913.

This article at Hindawi Publishing: https://doi.org/10.1155/1913/68537
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Psyche
[October
Pupa (fig. 4). Length, 4 mm. Pale amber yellow in color. At the anterior end are two prominent cephalad projecting setae; the elongate lanceolate thoracic '
respiratory organs are yellow. Seven segments may be distinctly seen in the ab- domen, of which the first four are each provided with a curved pointed appendage, on each side ventrally; across the center of the dorsum of each of the first six abdominal segments is a transverse row of about 38 setulse. The last segment is provided with four stout diverging spines. Imago. Male and female. Length, 1.75 mm., without the hypopygium. Palpi pale yellow, face and front metallic blue, in some lights with a greenish tinge. An- tennae amber yellow, arista pubescent. Frontal setae and those of thorax and abdo- men pale yellow. Eyes sparsely pubescent, cilia of inferior orbit pale. Mesonoturn
and abdomen bright metallic green with bluish reflections, the former slightly pruinose, the latter with yellow hairs; scutellum metallic blue; prescutellar depres- sion shallow; pleura metallic green, darker toward the bas? of the wings. Tegulce pale yellow with pale hairs. Hypopygium (fig. 6) of the male fuscous, the appen- dages yellow; the basal sclerite which forms the capsule, elongate oval, the lamellae pear-shaped with several conspicuous, pale, setae. Ovipositor of the female fer- ruginous. Legs and coxae pale yellow. Halteres yellowish. Wings hyaline with dusky yellow veins, venation as figured (fig. 5). This species is distinguished from T. willistoni, by the structure of the hypopygium.
Perhaps the yellow antennae and the wholly yellow coxse may also be of specific importance. SOME ACALYPTRATE MUSCIDB
BY A. L. MELANDER
By an interesting coincidence Mr. J. R. Malloch, then of the United States National Museum, and I made an independent study of the small flies grouped about the Agromyzidse. Mr. Malloch's paper on the genus Agromyw is to appear in the Sep- tember issue of the Annals of the Entomological Society of America, while his discussion of the other genera is to come out in the Proceedings of the National Museum. The first installment of my paper was printed in the September issue of the Journal of the New York Entomological Society, which was received at the Bussey Institution, through the mails, on September 8. The remainder of this article, dealing with the Geomyzinse is to appear in the December issue of that publication. The following notes were made on a recent visit to the National Museum and to the Philadelphia cad ern^ of Science, and are 1Contributions from the Entomological Laboratory of the Bussey Institution, Harvard University, No. 73.




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19131 . Melander-Some Acalyptrate Muscidos 167 given as a supplement to my paper.
While in Philadelphia I
saw the proof sheets of Mr. Malloch's work, and while in Wash- ington I examined his types.
1. Scutops Coquillett is not a Geomyzine. The post-vertical
bristles are strongly divergent; the costa is nowhere fractured; the palpi are broadly spatulate; the first vein ends at the middle of the wing and the auxiliary vein, although rudimentary, is sepa- rated from the first vein, abruptly turning forward so as to termi- nate near the middle of the costal cell. In addition, the lack of oral vibrissse, the presence of the clypeus, the single pair of recli- nate fronto-orbital bristles, the stiff bristles of the front femora, the absence of preapical tibia1 bristles; and the shortened anal vein, support its relationships with the Lonchseinse. The center
of the face is broad and flat, obliterating the facial orbits below the antennae. The face continues on the sides so as to line the mouth-opening; the cheeks thus consisting of the face, gene and buccse.
2. Pseudiastata Coquillett belongs with the Drosophilinse. It
possesses the following characters which are at variance with typical Geomyzinse.
The costa is fractured both at the humeral crossvein and at the end of the auxiliary vein, where there is a pronounced costal spine; the discal cell is confluent with the second basal; the single frontal bristle is proclinate; there are no mesopleural bristles; and the antennae are spaced apart. Mr. Coquillett was apt to over-stress some certain character, such.as the vestiture of the arista, and as he relied much on his analytical keys, the microscopic pubescence of the arista of Pseu- diastata led the genus to the Geomyzinse. A similar instance occurred with Sinophthalmus, which presents more Drosophiline characters than it does Geomyzine. Pseudiastata has the anal cell present; the calypteres ciliate; the post-vertical bristles convergent ; the oral vibrissse present ; the clypeus visible and moderately developed; the cheeks consisting of the gense, buccse and the sides of the face; the center of the face broad and flat; the front pubescent; and the propleural bristle lacking. 3. Spilochroa punctipennis, sp. nov.
Male. Length 2.5 mm. Cinereous, black; body not spotted. Cheeks, face and frontal orbits white-pollinose. Antennae brown, the third joint blackish.



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except near the arista; arista with very short and dose pubescence. Proboscis blackish, palpi whitish. Chatotaxy as in mufa, the bristles long and strong: . two fronto-orbitals; ocellars almost reaching the root of the antennae; postverticflla moderately long and cruciate; oral margin of the narrow cheeks with a row of five hairs, with a strong vibrissa and with a strong bristle in back; five dorso- ĺ´centrals four rows of acrostichals with about a dozen set* in each; one humeral; two notopleural; three aupia-ah; four scutellar; one mesopleural and two sternopleural, as well as a few mesopleural and sternopleural set*. Abdomen setulose as in omota, and with an indication of a brownish median stripe. Hal-
tern and calypteres white, the latter with a weak white fringe. Posterior Iwg
yellowish, front coxae dull whitish, remainder of the front legs blackish. Wings mostly hyaline, but marked with about two dozen pale brown spots, the largest of which occur at the end of the 6rst vein, in the tip of the marginal cell and on the posterior cross-vein. The spots are aggregated in the same general pattern .ĺ´a in omah, but are not nearly so confluent as in that species. The type, collected by Professor T. D. A. Cockerel1 at Pecos, New Mexico, July 9.6, is in the National Museum. Two para- types were taken by H. S. Barber at Las Vegas Hot Springs, New Mexico, August 11 and 18.
4. Trixoscelis fdpennis, sp. nov.
Male. Length 3.5 mm. Very close to the European T. wgiMl1a Fallen, but differs in that the paler portion of the first and second posterior cells is not oval in outline.
Head and thorax, largely browmish-gray poUiose; front except the orbits and the rounded oceliar triangle testaceous; orbits at the antem reddish; face and cheeks white-sericeous; cheeks two-thirds the eye-height; antennae reddish, the third joint largely dusky above; arista black, its pubescence microscopic; palpi yellow, proboscis reddish. Qcellar bristles reaching to the base of the antennffi. Thorax with a. median brown stripe and with less evident brown vitte bearing the dorm-central bristles; humeri and pleurae reddish, becoming paler Wow; center of the scutellam a trifle darker than the sides: abdomen shining black. Coxce, front tibiee and posterior legs testacwus; front femora and tarsi blackish, Haltem and calypterea white. Wings largely darkly infumated, but the base, including the auxiliary cdL a narrow streak in the submarginal cell above the anterior cross-vein, the anterior portion of the did cell, a middle stripe in the first posterior cell extending to the wing-tip, the greater part of the second posterior , cell, and the anal angle, nearly hyaline; costal spines black: anterior cross-win slightly beyond the middle of the discal cell; sections of the fourth vein propor- tinned three to four, of the fifth vein six to one; posterior cross-vein slightly longer than the outer section of the fifth vein. Five specimens: Aweme, Manitoba, N, Criddle, collector, June 12, 1911. The type is in the collection of the Philadelphia Acad- emy of Science, number 6018. Paratypes are ~JI the collections of Mr. Criddle and myself.




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19131 Melander-Some Acalyptrate Muscidae 169 Mallochl has described the Arizona specimens of costalis Coquil- lett as claripennis. This is the species I have designated as frontalis Fallen, which is common throughout the Pacific states. Hendel's Trixoscelis prima is the same as Parodinia cinerea Coquil- lett.
5. Hemeromyia was described by Coquillett as near Agromyza. It proves to be the same as the Milichiine genus I described as Paramadiza. Malloch's species Hemeromyia nitens is the same as my washingtona. Curiously enough the name Paramadiza was selected also by Malloch, as a new generic name for Madiza halteralis Coquillett. As the name Mad& is now used for the Chloropine genus Siphonella Macquart, the species halteralis is without a generic name. (See Malloch, Canad. Entom., xlv., p. 177. June, 1913.). I would therefore suggest the appropriate name Mallochiella for this insect and for its European congeners. The identity of the Paramadizas may now thus be tabulated. MALLOCHIELLA nomen novum.
halteralis Coquillett
Desmometopa (Coquillett)
Madiza (Hendel, Melander)
Paramadiza Malloch
HEMEROMYIA Coquillett.
obscura Coquillett
washingtona Melander
Paramadiza Melander
Syn: Hemeromyia nitens Malloch
Fig. 1.
Mutiloptera apicalis Coq., wing.
6. Mutiloptera apicalis Coquillett.
This is a curious fly, whose
body characters are evidently Geomyzine. The entire posterior.
portion of the wing is aborted as shown in the sketch. September 19, 1913.
'The Genus Parodinia Coq. (Geomyzidse).
Malloch, J. R. Ent. New, xxiv. 274-276 (June,. 1913)




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