MB. WALKEB ON DIPTERA COLLECTED AT MAKESSAB. 121 



vescente vitta cupreo-nigra, anteniiis fulvis, thoracis lateribus fasciaque 

 flavis, abdorninis lateribus fasciis tribus flavis strigisque tribus flavis, 

 pedibus flavis, tibiis posticis femoribusque nigris apice flavis, alis 

 cinereis, litura costali fasciisque duabiis exterioribus nigricantibus. 

 Female. Cupreous black; head in front yellowish with a cupreous-black 

 stripe; antennae tawny; 3rd joint long, linear, obtuse at the tip; 

 thorax yellow along each side and with a yellow band in front of the 

 scutellum ; abdomen yellow along each side and with three yellow 

 bands; 1st band entire; 2nd nearly interrupted ; 3rd emitting a lan- 

 ceolate streak in front and twp hindward streaks which extend to the 

 tip ; legs yellow ; femora and hind tibiae black with yellow tips ; wings 

 cinereous, with a blackish mark by the middle of the costa, and with 

 two exterior slender blackish bands; veins black; haltcres yellow. 

 Length of the body 2^ lines ; of the wings 4 lines. 



Gen. EuMERrs, Meigen. 



94. EuMERUS FiGURANS, n. s. FcBm. Niger, capite albo vitta cyanea, 

 scutelli margine postico fulvo, abdomine nigro-aeneo fasciis duabus 

 albis, 2^ interrupta, tarsis subtus genubusque testaceis, alis sub- 

 cinereis. 



Female. Black, nearly cylindrical ; head whitish, with a dark blue stripe 

 on the vertex ; antennae with whitish tomentum ; 3rd joint somewhat 

 dilated, rather broader than long ; scutellum tawny along the hind 

 border ; pectus cinereous ; abdomen aeneous-black, minutely punc- 

 tured, with two white bands, placed oblique with regard to the seg- 

 ments, the 2nd interrupted; tarsi beneath an^ knees testaceous; 

 wings greyish; veins black; cubital vein much contorted; halteres 

 testaceous. Length of the body 5^ lines ; of the wings 6 lines. 



Gen. Syritta, St. Farg. 



db. Syritta illucida, n. s. Fcem. ^nea, capite argenteo, vertice 

 nigro punctis duobus nigrio ; , antennis pallide rufis, abdomine fasciis 

 duabus latis interruptis testaceis maculisque duabus subapicalibus 

 albis, pedibus testaceis, femoribus tibiisque posticis nigris, his rufo 

 fasciatis, alis subcinereis. 



Female. iEneous ; head silvery white ; vertex black, with an elongated 

 white point on each side ; antennae pale red ; pectus and sides of the 

 thorax whitish ; abdomen with two broad interrupted testaceous bands ; 

 apical segment with a white spot on each side at the base ; under side 

 testaceous except near the tip ; legs testaceous ; hind femora and hind 

 tibiae black, the latter with a red band ; wings greyish-vitreous ; veins 

 black. Length of the body 3a lines ; 'of the wings 5 lines. 



Gen. Baccha, Fair. 



9Q. Baccha dispar, n. s. Mas. Cupreo-nigra, capite chalybeo-nigro 

 vittis duabus flavis, antennis rufis, thorace maculis quatuor luteis, ab- 



