Summary

Portrait of Alfred Russel Wallace Alfred Russel Wallace Catalogue of the dipterous insects collected at Singapore and Malacca (1856)

Scutellum testaceous. Abdomen elongate-oval, longer than the thorax. Wings greyish, rather short, limpid towards the base; veins black, testaceous towards the base; præbrachial vein forming a very slightly acute angle at its flexure, near which it is very deeply curved inward, and is thence straight to its tip which joins the tip of the costal; discal transverse vein straight, parted by much less than its length from the border, and by little more than half its length from the flexure of the præbrachial.
Source: Gutenberg

Portrait of Alfred Russel Wallace Alfred Russel Wallace Catalogue of the dipterous insects collected at Singapore and Malacca (1856)

Obscurè nigra, capite, thoracis lateribus, pectore abdominisque marginibus fulvo-tomentosis, mystace nigro, antennarum articulo 3o longi-fusiformi, thorace cinereo-bivittato, abdomine ferrugineo, apice nigro, alis obscurè fuscis basi pallidioribus.
Female. Dull black. Head, sides of the thorax, pectus, and hind borders of the abdominal segments with tawny tomentum. Face slightly convex towards the epistoma. Mystax with a few black bristles. Third joint of the antennæ very elongate fusiform, longer than the 1st and the 2nd. Thorax with two parallel cinereous stripes.
Source: Gutenberg

Portrait of Alfred Russel Wallace Alfred Russel Wallace Catalogue of the dipterous insects collected at Singapore and Malacca (1856)

Obscurè cinerea, capite testaceo, thorace nigro-punctato, abdomine guttis quatuor lateralibus albis tomentosis subtùs testaceo, pedibus fulvis, femoribus posterioribus tibiisque posticis nigris, alis subcinereis guttis plurimis limpidis.
Female. Dark grey. Head and appendages testaceous. Thorax punctured with black; humeral calli black, shining.
Source: Gutenberg

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