MR. WALKER ON DIPTERA COLLECTED AT MAKESSAR. 119 



conical, forked at the tip, with a black line ; proboscis longer than the 

 thorax, black towards the base ; arista plumose ; two large spots on 

 the thorax, its disk hindward, disk of the scutellum and disk of the 

 pectus cupreous black; abdomen highly arched, with three black 

 bands which are produced and slightly interrupted in the middle ; 

 apical band very broad ; tibiae and anterior femora with black bands ; 

 wings with a luteous stigma. Length of the body 6 lines 5 of the 

 wings 8 lines. 



Gen. Eristalis, Latr. 



86. Eristalis crassus, Fahr. Ent. Syst. IV. 281, 12. 

 Inhabits also Hindostan. 



87. Eristalis ^sepus, 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, pec- 

 tore 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 pubes- 

 cent, 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 ?) tibiae yellow at the base ; wings 

 blackish -brown, cinereous towards the tips and along the hind border ; 

 veins black ; halteres yellow. Length of the body 5h lines ; of the 

 wings 11 lines. 



G-en. Helophiltjs, Meigen. 



The two following Helophili may be merely varieties of H. quadri- 

 vittatus. 



89. Helophilus CONSORS. n. s. ikfas. Niger, thorace vittis quatuor 

 flavis, scutello luteo, abdomine vittis tribus luteis tribusque chalybeis, 

 tibiis basi luteis, femoribus posticis incrassatis, alis cinereis apud cos- 

 tam 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 sidte ; tibiae luteous towards the 

 base ; hind femora incrassated ; hind tibiae curved ; wings cinereous, 

 brownish along the costa ; veins black ; halteres yellow. Length of 

 the body 5 lines ; of the wings 9 lines. 



90. Helgphilus conclusus, n. s. Mas. Niger, capite albo, antennis 



