Female. Coal-black. Antennæ tawny, arista white; thorax and abdomen with bright silvery tomentum; tarsi whitish testaceous; wings limpid, veins pale. Length of the body 2 lines; of the wings 3½ lines.
Gen. Sargus, Fabr.
14. Sargus metallinus, Fabr. See Vol. I. p. 110.
15. Sargus complens, n. s. Fœm. Rufescente-fulvus, capitis vertice nigro, antennis testaceis, abdomine fasciis latis abbreviatis piceis, tarsis posticis basi tibiisque posticis nigris, alis cinereis, basi subluridis, apud costam exteriorem nigro-fuscis.
Female. Reddish tawny. Head black above, testaceous beneath; antennæ testaceous; abdomen with four broad abbreviated piceous bands; legs tawny, hind tibiæ black with a tawny apical mark, hind tarsi black towards the base; wings greyish, slightly lurid towards the base, blackish-brown about the exterior part of the costa, veins black, tawny towards the base; halteres testaceous, tawny towards the tips. Length of the body 6 lines; of the wings 14 lines.
16. Sargus rogans, n. s. Mas et Fœm. Capitis vertice nigro, antennis pedibusque testaceis, tibiis tarsisque posticis nigris, alis subcinereis apice obscurioribus. Mas. Luteo-testaceus. Fœm. Ferrugineus.
Male and Female. Head black above; antennæ and legs testaceous; hind tibiæ and hind tarsi black; wings greyish, darker towards their tips; veins black, tawny towards the base. Male. Lutescent testaceous. Female. Ferruginous; wings darker than those of the male. Length of the body 5 lines; of the wings 10 lines.
Gen. Nerua, n. g.
Fœm. Corpus longiusculum, sublineare. Caput transversum, thorace non latius. Antennæ breves; articulus tertius rotundus; arista apicalis, longa, tenuis, setiformis. Thorax productus. Scutellum spinis quatuor longiusculis. Abdomen depressum, sublineare, thorace vix latius, non longius. Pedes graciles, non longi. Alæ angustæ; venæ bene determinatæ.
Female. Body rather long, nearly linear. Head transverse, not broader than the thorax. Antennæ short; third joint round; arista apical, long, slender, setiform. Thorax long. Abdomen flat, thin, nearly linear, hardly broader and not longer than the thorax. Legs slender, not long. Wings narrow; veins distinctly marked, in structure like those of Clitellaria.