. Fig. 2. Wing of H. femoratus. present, sending two veins to the wing-margin, the lower being the upper branch of the postical vein which closes the discal 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 Hyhos are somewhat easily recognised by their slender, somewhat curved abdomen; they
. Fig. 2. Wing of H. femoratus. present, sending two veins to the wing-margin, the lower being the upper branch of the postical vein which closes the discal 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 Hyhos 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 places; 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 ^'«, and this is exceptionally early, and I have taken them to the end of September. Tiiey 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 palsearctic 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. TahJe of Species. 1. Anterior legs reddish; anterior tibite 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 tibiae and tarsi with long hairs, hind femora strongly thickened and genitalia small 1. grossipes. — Notopleural, postalar and scutellar marginal bristles yellow: in the male anterior tibise and tarsi without long hairs, hind femora slightly thickened and genitalia much swollen 3. adiciformis.
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
