. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Empididae. 11 two pulvilli and a small, narrow, lobe-shaped empodium, bearing bristles and terminating with a longer bristle. The wings are some- what long, the cubital vein is unforked and thus one cubital cell; the discai vein likewise unforked, thus three posterior cells; a discai cell. Fig. 2. Wing of H. femorattis. present, sending two veins to the wing-margin, the lower being the upper branch of the postical vein which closes the discai cell below; the anal vein very weak, reaching the margin, t


. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Empididae. 11 two pulvilli and a small, narrow, lobe-shaped empodium, bearing bristles and terminating with a longer bristle. The wings are some- what long, the cubital vein is unforked and thus one cubital cell; the discai vein likewise unforked, thus three posterior cells; a discai cell. Fig. 2. Wing of H. femorattis. present, sending two veins to the wing-margin, the lower being the upper branch of the postical vein which closes the discai cell below; the anal vein very weak, reaching the margin, the anal cell longer than the second basal cell. Stigma present. Axillary lobe somewhat dev- eloped, not large. Alula not developed; alar squamula with long hairs forming a fan. So far as I am aware the developmental stages to this genus are not known; probably they live in the earth. The species of Hijhos are somewhat easily recognised by their slender, somewhat curved abdomen; they have a rather heavy flight. They occur in bushes and in herbage on the ground in woods on humid and somewhat shaded piaces; they are very often seen sitting just on the points of the leaves. All species occur late in summer and autumn, my earliest date is ^^/r, and this is exceptionally early, and I have taken them to the end of September. They are evidently carnivorous; I have often taken them with prey, generally small Diptera; the prey of the single species is recorded below. Of the genus 9 species are recorded from the palæarctic region, but as will be seen below I think there are in reality only 4, three of which belong to Europe, all three also occurring in Denmark. Tahle of Species. 1. Anterior legs reddish; anterior tibiæ and tarsi in the male with long hairs 2. femoratus. — All legs dark 2. 2. Notopleural, postalar and scutellar marginal bristles black; in the male anterior tibiæ and tarsi with long hairs, hind femora strongly thickened and genitalia small 1. grossipes. — Notopleural


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