86. Eristalis crassus, Fabr. Ent. Syst. IV. 281, 12.
Inhabits also Hindostan.
87. Eristalis Æsepus, Wlk. Cat. Dipt. pt. 3, 625.
Inhabits also China.
88. Eristalis bomboides, n. s. Mas. Ater, capite albo, arista nuda, thorace pubescente fascia cinerea fasciaque chalybeo-nigra, pectore cinereo, abdomine fasciis quatuor chalybeo-nigris, vittis duabus ventralibus latis albidis; tibiis basi flavis, alis nigricante-fuscis cinereo marginatis, halteribus flavis.
Male. Deep black; head with black hairs on the front and with white tomentum in front and behind; arista simple; thorax thickly pubescent, having in front a cinereous band which is tawny on each side, and a chalybeous black hinder band; scutellum chalybeous-black; pectus cinereous; abdomen with four chalybeous-black bands; the 1st widely interrupted; under side with a broad short whitish stripe on each side; hind (and anterior?) tibiæ yellow at the base; wings blackish-brown, cinereous towards the tips and along the hind border; veins black; halteres yellow. Length of the body 51/2 lines; of the wings 11 lines.
Gen. Helophilus, Meigen.
The two following Helophili may be merely varieties of H. quadrivittatus.
89. Helophilus consors, n. s. Mas. Niger, thorace vittis quatuor flavis, scutello luteo, abdomine vittis tribus luteis tribusque chalybeis, tibiis basi luteis, femoribus posticis incrassatis, alis cinereis apud costam fuscescentibus, halteribus flavis.
Male. Black; thorax with four yellow stripes; scutellum luteous; pectus cinereous; abdomen with three luteous bands and with four chalybeous bands; 1st luteous band interrupted, very broad; 3rd and 4th slightly excavated on the hind side; tibiæ luteous towards the base; hind femora incrassated; hind tibiæ curved; wings cinereous, brownish along the costa; veins black; halteres yellow. Length of the body 5 lines; of the wings 9 lines.