J. R. Malloch.
Four New North American Chloropidae.
Psyche 21(1):24-26, 1914.

This article at Hindawi Publishing: https://doi.org/10.1155/1914/62078
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Psyche [February
FOUR NEW NORTH AMERICAN CHLOROPIDB
(DIPTERA) .
BY J. R. MALLOCH,
Urbana, Illinois.
Parectecephala dissimilis sp. nov.
Male:
Yellow, subshining. Frons parallel-sided, a little less than twice as wide as either eye; frontal triangle not occupying whole width of vertex, glossy, reaching in a narrow line to the anterior margin of frons, sides concave, a large black spot mid way between ocelli and anterior margin, ocellar region brown; surface hairs black, long and fine; post-vertical pair of bristles erect; head in profile elongate, frons projecting over one-third the length of eye, face receding much as in Ectecephala; face and cheeks whitish yellow, height of latter equal to over one-half the breadth of third antenna1 joint; antennae of good size, situated on almost apex of projecting frons, yellow, basal joints browned, third blackened above and at apex, third joint about one and one-half times as long as broad, upper surface at apex distinctly less rounded than lower; arista white, yellow at base, covered thickly with white hairs which give it the appearance of being thick- ened, length of arista equal to one and one-half tomes that of antenna; proboscis and palpi pale yellow, the former rather large and the apical portion folded back below the basal; eyes about one and one-half times as long as high, bare. Meso- notum with faint indications of three, almost confluent, reddish yellow stripes, the lateral margin of the outer stripe on either side brown, surface hairs dark, short; pleurae immaculate, highly glossy; scutellum flattened, the surface roughened slightly and with numerous short, black hairs, 2 apical long bristles and a number of short ones on margin. Anterior margin of abdominal segments brown; hypo- pygium glossy, prominent, with a projecting ventral process. Legs slender, only the last joint of tarsi, and claws black. Wings clear, veins brown; all veins dis- tinct, only the apex of fourth slightly less distinct than the others; cross veins separated by almost as far as length of last section of fifth vein; third vein slightly upward bent at apex; third costal section two-thirds as long as second; veins 3 and 4 distinctly divergent; outer cross vein but little longer than inner, the cell enclosed by it, therefore very narrow. Halteres pale yellow. Length: 3.5 mm.
Type: Cat. No. 15968, U. S. N. M.
Locality: Chester County, Pennsylvania, July 22, 1893. No collector's name
on specimen.
This species has much the habitus of some of the species in Diplotoxa and also those in Ectecephala. From Diplotoxa it may
be separated by the less closely approximated cross veins, and the third vein being less distinctly upturned. From Ectecephala
the flat frons readily separates it.
Psiche 21:2&25 (1914). hup//psycherinclubo~/21/21-024 html



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19141 Malloch-Four New North American Chloropidce 25 Parectecephala is likely to be confused with Eutropha Loew, the genera being very close, if aristalis Coquillett belongs to the former. Becker includes this species in his genus, but I can see no reason for separating the type from Eutropha. The frons is unprojecting and in other respects the type agrees very well in habitus with Eutropha thalhammeri Strobl, which is repre- sented in collection United States National Museum. Botanobia ( = Oscinis) marginalis sp. nov. Female: Yellow, slightly shining.
Ocellar region, and back of head black;
third antenna1 joint at insertion of arista slightly browned. Mesonotum black' gray, four equally wide reddish yellow stripes begin on anterior margin and extend to beyond middle of disk, becoming wedge shaped posteriorly; margin of disk laterally, on the posterior angle, reddish yellow; humeri and lateral margin of disk at middle pale yellow; pleurae pale yellow, with a vertical black stripe on upper half below wing base, which joins a forwardly directed diagonal stripe extending to about midway up mesopleura, and another spot above hind coxa; scutellum black-gray on disk, the margin broadly pale yellow; postnotum black. Abdomen yellow, each segment with dark brown fore marginal band which is produced backward in center. Legs entirely yellow. Wings clear, veins brown, Halteres yellow. Hairs on body yellowish; bristles black. Frons occupying one-third the head width; triangle ill-defined; surface hairs numerous, short, black, those near eye margin rather setulose; antennae of normal size, third joint rather acute on upper surface at tip; arista barely longer than width of frons, pubescent; cheek at least half as high as width of third joint of antenna; eyes oval, distinctly pubescent. Mesonotum impunctate, the surface hairs short; scutellum with 4 marginal bristles, the apical pair largest, but barely longer than the length of scutellum; outline of scutellum rounded. Legs normal. Wings with third costal division slightly over one-half as long as second; veins 3-4 divergent. Length: 1.5 mm.
Type: Cat. No. 15970, U. S. N. M.
Locality: Biscayne Bay, Florida. (Mrs. A. T. Slosson.) One specimen. Botanobia (= 0s:inis) proxima sp. nov.
Female: In coloration almost similar to marginalis. Differing in the following respects from that species: The insect over all is more slender; the head is more elongate; the eyes are elongate oval, whereas in marginalis they are placed with their long axis diagonal to the line of the body; the mesonotum has the two center yellow stripes reaching to short of the middle of disk, and the outer two reaching to distinctly beyond the middle, in marginalis the stripes are of equal length; and the mesonotum is more distinctly shining, the pollinosity being less distinct in proxk
Length: 1 .% mm.
Type : In collection of W. L. McAtee.
Locality: Wallops Island, Virginia, June 1, 1913. (W, L. McAtee.)



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