ME. ■SVALKER 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 5 lines ; of the 

 wings 8 lines. 



Gen. Eristalis, Latr. 



86. Eristahs crassus, Fabr. Ent. Syst. IV. 281, 12. 

 Inhabits also Hindostan. 



87. Eristahs iEsepus, 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 flayis, 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 5i lines ; of the 

 wings 11 lines. 



Greu. Helophiltjs, Meigen. 



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

 vittatus. 



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 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 side ; tibiaj luteous towards the 

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

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

 the body 5 lines ; of the wings 9 lines. 



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



