The ovipositor is therefore about five-eighths as long as the rest of the insect. A second blackish stripe begins at the base of the main stem vein and fills the first basal stripe.
DIPTERA OR TWO-WINGED FLIES — ALDRICH 11
Mesonotum, seen from behind, shows three dark stripes, separating four pollinating stripes (Brazil) purpurata Aldrich. Viewed from behind, the pollen is not clearly divided into 4 stripes (Costa Rica) semiflava, new species. Second to fourth abdominal segments with a posterior, sharply defined violet band; third segment without marginal bristles.
Middle and hind tibiae black, in males moderately elongated and with only fine bristles (South America). Middle and hind tibiae are not or barely ingrown; male with normal bristles on mid tibia (Brazil).
DIPTEEA OR TWO- WINGED FLIES ALDRICH 13 MESEMBRINELLA SPICATA, new species
14 PROCEEDINGS OF THE NATIONAL MUSEUM vol.6G two and a half times the second; arista with long but sparse piiumosity; facial ridges flat, only a few hairs above the vibrissae; bucca yellow, about one-ninth of eye level. Inner tweezers black, flat and wide at the base, but tapering to a slender, sharp point; outer tweezers black, narrowed at the base, wider in the middle, with sharp point. Wings lightly saturated, posterior transverse vein deeply; The fourth vein beyond the posterior transverse vein arches slightly posteriorly to broaden the apical cell, which at its tip comprises a costal segment approximately one-seventh the size of the preceding one.
Male.— Anterior nearly as wide as the narrow ocellial triangle, the narrow parafrontals touching at some distance; frontal bristles begin about midway; ocellars long, oblique, post-ocellar pair about half as long; one pair of smaller verticals. Head yellow except upper two-thirds of back and upper third of front; antennae and palpi yellow; third antennal joint not much more than twice as long as the second, which is slightly longer than in some. AET18 DIPTEKA OR DIPTEKA ALDRICH 15more fiat, only a few hairs above the vibrissae; bucca very narrow,.
AET18 DIPTEKA OR TWO-WINGED FLIES ALDRICH 15 rather fiat, only a few hairs above vibrissae; bucca very narrow,
DIPTEEA OR TWO- WINGED FLIES — ALDRICH 17
Palpi slender and very short; vibrissae at least the length of the second antennal joint above the oral margin and clearly approximated. Neopollenia Brauer, Neocalliphora Brauer and Bergenstamm, and Paracalliphora Townsend, all from the Oriental and Australian. 34;Brauer and Bergenstamm had every right to adopt Callitroga SchinerMS." They did not adopt it, but only referred to it ambiguously as a collective name of Schiner, apparently associating it first and most clearly with Lucilia Jioniinivorax Coquerel.
Even granting the validity of the name for Jiominivorax, I question the advisability of using it as if macella were its type. Thorax black with only slight traces of metallic colour, the four white pouinose stripes very clear and the inner pair continuing onto the carapace. Male. Anterior as broad as an ocellar triangle, completely black near the apex, gradually covered with white pollen below, with numerous small white hairs continuing close to the eye to the middle of the third antennal joint; bucca two-fifths of the eye level, translucent yellow and glossy except fore and aft; back of head black to trunk; antennae, palpi, proboscis and facial structure in 'iaceUaria, except that the vibrissae are slightly closer to the epistoma.
DIPTERA OR TWO-WINGED FLIES — ALDRICH 19 of macellaria (not of Paralucilia comicma Fabricius, as suggested
The type species designated by Townsend was described by Macquart as Lucilia varipes,* It may be distinguished from the new species here described by the following characters. Parafrontals shining green at the vertex and as far forward as the tip of the ocellar triangle, then changing suddenly to pure bright yellow, the color of which extends downwards and covers the entire buccal region; forehead band a little.
DIPTEKA OR TWO-WINGED FLIES ALDEICH 21
Thorax black with green reflections; mesonotum, seen from behind, with two white pollinous stripes just within the dorso-central rows, and a few more from the humerus to the suture; behind the suture these start again a little higher and converge to follow the sides of the shield almost to the top. Legs black, the thighs slightly bluish; middle tibia on the inside of the back With erect hair, hind tibia on the inside of the flexor side with 2 to 3 longer, fine hairs, on the outside with one bristle. Wings slightly smoky; the third vein is so curved that the apical cell widens beyond the center; third vein hairy, almost to small transverse vein.
DIPTEKA OR TWO- WINGED FLIES ALDRICH 23 and close together reaching down to middle of second antenna!
In the following three species, the puparia will be described and figured in a forthcoming comprehensive work by Charles T. SARCOPHAGA PLACIDA, new species Fig. frontals eight, the upper part large and oblique, the lower level of the middle of this second antennal node, hardly divergent toward the eye, about as in the setae. There are no frontal acrostics; posterior dorsocentrals four, but only two posteriors of any size; sterno-pleural three; scutellum with two lateral pairs and a subdiscal pair of . hairs, and besides these a tuft of dense white or yellow hairs on the vertical border near the base. Forceps black, long and narrow, and closely touching each other throughout their length, narrowing strongly beyond the middle, and becoming larger again near the tips, which are rounded and clavate; on the front side the profile is almost straight.
{c) two lateral black bars,. narrowed and curved forward, connected at the front by a transparent membrane, forming a semi-cylinder or trough, closed. Fifth sternite delicate, yellow, retracted, broad U-shaped, with rather dense hair on the inside of the arms. J/aZe.—Anterior about 0.22 width of head, head damaged at sides, measurement cannot be made accurately; parafrontals and parafacials pollinose with a distinct but not deep golden tinge, the former narrower than the midline, the latter with a row of hairs near the eye becoming bristly below, and a few additional hairs; two or three upper frontal pairs less and less inclined, the upper one particularly strong; lowest fronts strongly divergent;.
DIPTERA OR TWO-WINGED FLIES ALDKICH 27 uniform breadth to the tip, where the hind edge curves forward to
ART18 DIPTERA OR DOUBLE-WINGED FLIES ALDKICH 27 of equal width to the tip, where the posterior margin is curved forward. The closest relative is the Davidsoni, Coquillett, which was raised from spider eggs; subaenescens differs from this species in lacking the anterior acrostices, thinner pollen, slight sparkling tinge in the color of the abdomen, etc. The characteristics of Atactus are briefly as follows: the head is wider than the thorax, subhemispheric; front in males surprisingly narrow above (about twice the ocular triangle), eyes extending at wide angle to height of antennae, parafrontals triangular, usually silvery, covered with dense hair, anterior stripe only about as wide as ocular triangle; only one vertical on each side.
Ocellars present in both sexes, the anterior parts diverging below in a broad curve almost to the margin of the eye at the level of the middle of the second antennal joint; the antennae are slender and small, sec- . ondjointequal third; the face is very flat, the parafacial is bare and broad, the facial ridges are bare, the vibrissae are distinctly above the edge of the mouth. The species, originally described from a female taken in Brazil and subsequently collected by Townsend in Peru, ranges north to near Washington. Thorax black with visible streaks of white pollen, leaving between them a pair of shortened black streaks anteriorly between the acrostic and the middle of the back; a pair of perfect black stripes beginning just above the humerus and extending to the shield; and a short central black line beginning at the suture and extending forward almost to the suture.
DIPTEKA OR TWO- WINGED FLIES ALDRICH 31 Wings hyaline, third vein with four or five bristles at base; fourth
ART18 DIPTHECA OR TWO-WINGED FLY ALDRICH 31 Wing hyaline, third vein with four or five hairs at base; fourth. I highly doubt the generic reference as none of the other species have such an elongated third antenna. Male.- Frontal 0.28 width of head (average of four prefrontals, light golden pollinose; frontal hairs about eight, both uppermost large, supported, lowest reaching level of arista and varying strongly towards eyes; one vertical pair: large basements; parafacials silvery from lower frontals, narrowest less than half width of third joint of antennae; first two nodes of antennae and usually base of third red, third broad and long, nearly reaching vibrissae, four or five times second; arista of moderate length, almost thickened at base; face tinged with parafacial, its ridges rather sharp, bare, excluding vibrissae; palpi yellow, common, short, fleshy; bucca over one-fourth height of eyes.
Abdomen black with subsilvery basal pollen bands on segments two to four that appear to the naked eye to be the same as alternating black bands; under the lens at some angles, but the pollen covers most of the segments. Genital segments rather large, completely black, with black hair and the other with a pair of backward directed bristles. ART18 DIPTEEA OR TWO-WIXGED FLIES ALDRICH 33 Legs black, claws and pulvilli, especially the fore;
DIPTEEA OR TWO-WIXGED FLIES ALDRICH 33 Legs black, claws and pulvilli iong, especially the front ones;
Abdomen mostly yellow basally, variable interrupted median black line and narrow variable black posterior margins on last three segments; bent ends of second and third tergites. The pollen of the abdominal cavity is yellowish and confined to the base of the last three segments, covering half of the fourth. AUTlS DIPTEKA OR DOUBLE-WINGED FLY-WING ALDRICH 35 The species is strictly related to Dexiarustica Fabricius of Europe, type genns.
The species was recently discovered by Clausen and King of the US Bureau of Entomology as an important parasite of the 'Japanese beetle', Popillia japonica Newm., in Japan. The parafacial also bears a more or less double row of hairs close to the eye. Eyes almost contiguous in front, separated by less than the width of the anterior ocellus, ocellar triangle small, elevated; ocellar and vertical bristles absent, no bristles anteriorly above center, a few small bristles below the crescents; small hairs begin on the lower parafrontais and continue along the narrow parafacials in a largely double row to the lower end of the moon.
