. Diptera danica : genres et espèces de mouches trouvés jusqu'au Danemark. Diptera -- le Danemark. Dolichopodidae. 31 poils oculaire blanc, le très court, noir ; la partie inférieure de l'occiput couverts de poils blancs, des antennes jaune, le troisième et le brun ou brun noirâtre. Thorax vert metaliic, quelque peu densément grisâtre ou beige, pruineuse mat ; il est plus dense en avant, et pruineuse indistinctement rayé. Scutellum moins pruineuse. Le acrostichal poils sont plus forts que dans platypterus^ noire comme les autres soies ; il y a trois soies, supraalar le hind- plus longe

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. Diptera danica : genera and species of flies hitherto found in Denmark. Diptera -- Denmark. Dolichopodidae. 31 ocular hairs white, the uppermost very short, black; the lower part of occiput covered with white hairs, Antennæ yellow, the third joint and the arista brown or blackish brown. Thorax metaliic green, somewhat densely greyish or brownish pruinose, dull; it is most densely pruinose anteriorly, and indistinctly striped. Scutellum less pruinose. The acrostichal hairs are stronger than in platypterus^ black like the other bristles; there are three supraalar bristles, the hind- most longest. Scutellum with two black bristles, and on each side a small hair. Pleura grey, metaepimera yellowish. Abdomen metaliic green, slightly pruinose, the incisures forniing brown transverse bands, lying mainly at the anterior margin of the segments. Abdomen clothed with short, black hairs, at the sides anteriorly they are longer and yellow; at the hind margin of the segments are black bristles, they are long on the first segment, and also here black. Venter yellow, with yellow hairs; the yellow colour may stretch in on the side margins of the first segments. Jrlypopygium somewhat small, and quite different from that in platyp- terus: the eighth segment grey, sparingly covered with pale hairs; the hypopygium has somewhat triangular, yellow middle ventral lobes, and long, styliform posterior ventral lobes; these latter are curved towards each other, they are yellow with black apex; at the base of each a long, thin hair is seen. The outer lamellæ are united to a small, yellow median lobe, with long, black hairs at the apex, and pale hairs above. Below the said lobe lies a vertically placed, somewhat rhomboidal, yellow piece, which bears two haired styliform processes at the apical corner, and two brushes of curved hairs at the ventral corner; I have not been able to decide, whether the rhomboidal piece is paired or single, but 1 think the whole answers to the inner lamellæ.^ The

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