. Fig. 38.—Lonchoptcra lutea, Panz., $ . corners of the dorsum of the thorax, in a line with the hindermost pair of dorso-centrals. This bristle is not showji in Yerrall's figure. Three other forms of Lonclioptera have come before me, of which one is very striking, but it has unfortunately been accidentallj^ damaged. The wings bear a conspicuous black band. The body is wholly black, the antennae and legs yellow, the fore tibiae and tarsi quite black. A single $ from Kumaon in the Pusa collection. Family PLATYPEZID^. Head large; face small, broad, depressed down the middle in both sexes. Eyes b
. Fig. 38.—Lonchoptcra lutea, Panz., $ . corners of the dorsum of the thorax, in a line with the hindermost pair of dorso-centrals. This bristle is not showji in Yerrall's figure. Three other forms of Lonclioptera have come before me, of which one is very striking, but it has unfortunately been accidentallj^ damaged. The wings bear a conspicuous black band. The body is wholly black, the antennae and legs yellow, the fore tibiae and tarsi quite black. A single $ from Kumaon in the Pusa collection. Family PLATYPEZID^. Head large; face small, broad, depressed down the middle in both sexes. Eyes bare, large, contiguous for a considerable dis- tance in S with enlarged upper facets; wide apart in J. Antennae 3-jointed, short; arista long, bare, apical. Thorax subquadrate, somewhat arched, not pubescent, but Avith a few chaetotactic bristles, which are more distinct in the 5 ; pleurae bare; scatellum with marginal bristles. Abdomen narrower and generally longer than the thorax ; 6- or 7-segmented ; genitalia in S moi-e or less incurved. Legs (except in one non-Oi'iental genus, Opetia) with hind tibiae dilated townrds tip, and hind tarsi considerably dilated on first three or four joints. JFinr/s with a characteristic venation, peculiar to this family;, auxiliary, 1st, 2nd, and 3rd veins Ions and nearly straight; 4th vein simple or forked, turned upwards towards tip in Platypeza and ending in wing-margin shortly but distinctly below tip of 3rd vein, so that the Ist posterior cell is always open ; 5th and Gth veins- straight, simple. Discal cell present or absent; basal cells short;, anal cell always longer than 2nd basal, even if only slightly so. Squamae of moderate size ; halteres large. The females of many species are of quite different coloration from the males, showing conspicuous, brightly-coloured markings- on the thorax and abdomen.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1920
