. Diptera Brachycera. Brachycera. 328 EMPIDiE. several intermediate species. Melander adds that the 2nd longi- tudinal vein is curved towards the cost a, and the wings (except in one species, dealing with the ]North American ones only) are spotted in Syneches. In describing three new Indian species,* it was noted by me that so far as the origin of the 2nd vein went they might almost as well be placed in Hi/bos as in Syneches. Melander's figure of H. spinicosta shows this species also as practically intermediate; whilst in that of mellipes, though the humeral cross-vein is not figured, the orig
. Diptera Brachycera. Brachycera. 328 EMPIDiE. several intermediate species. Melander adds that the 2nd longi- tudinal vein is curved towards the cost a, and the wings (except in one species, dealing with the ]North American ones only) are spotted in Syneches. In describing three new Indian species,* it was noted by me that so far as the origin of the 2nd vein went they might almost as well be placed in Hi/bos as in Syneches. Melander's figure of H. spinicosta shows this species also as practically intermediate; whilst in that of mellipes, though the humeral cross-vein is not figured, the origin of the 2nd vein appears also in an intermediate position. Respecting the curvature of the 2nd vein, Melander's figures show it as much curved forward in H. mellipes as in (S. quadrangularis. The anal cell is said to be nearly truncate at the tip in Syneches and pointed in Hybos, but there is practically no difference in this respect in the wings of S. simplex and H. mellijjes. The character of the wing being generally spotted in Syneches is a weak one. It may be as well, however, to retain Syneches provisionally, though it is probably only worthy of subgeneric rank. From Epiceia, Walk., and Harpamerus, Big., taken together, Syneches (s. sir.) is supposed to differ by the 3rd and 4th longi- tudinal veins being parallel or diverging at the tip, instead of eon- verging at the tip. My own species must be considered as belonging to Syneches, sensu lato. 254. Syneches immaculatus, Brun. Sy7ieches immaculatus, Brunetti, Rec. Ind. Mus. ix, p. 18 (1913). S. Head dark grey; upper facets of eyes reddish brown, very much larger than the lower ones, which are coffee-brown; pro- boscis about as long as height of head, yellow; palpi very small, yellow, with a long bristle at the tips; antennae bright pale. Fig. 24.—Syneches immaculatus, Brun., wing. yellow, with a very long bisinuate drooping black arista. Thorax bright brownish yellow, Avith a few sparse hairs and four bristles towards
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1920
