154 Mr. F. Walker's Characters of undescrihed Diptera 



versa auratis, abdomine aeneo, maculis duabus basalibus late- 

 ralibus testaceis, pedibus ferriigineis, femoribus posticis 

 crassis denticulatis, alis cinereis, venis nebulosis, halteribus 

 testaceis. 



Male. — Black; head with pale gilded tomenturn, face with a 

 bluish black callus ; antennae ferruginous ; thorax with two an- 

 terior interrupted bands of gilded tomenturn, and with a transverse 

 spot of the same in front of the scutellum ; abdomen aeneous, 

 with an elongated testaceous spot on each side at the base ; legs 

 ferruginous, hind femora thick, minutely denticulated beneath ; 

 wings grey, clouded about the veins, which are black ; halteres 

 testaceous. 



Length of the body 4 lines ; of the wings 7 lines. 



Valley of the Amazon. 



Genus Temnocera, St. Farg. 

 Temnocera trifasc'ia. 

 Fulva, abomine fasciis tribus nigris, 3* interrupta apicali, tibiis 

 tarsisque ferrugineis, alis subcinereis apud costam subluridis, 

 stigmate maculaque costali subapicali nigricantibus. 



Tawny ; abdomen with three black bands on the hind borders 

 of the segments, third band interrupted, apical ; tibiae and tarsi 

 ferruginous ; wings very slightly greyish, slightly lurid along the 

 costa, stigma and a costal subapical spot blackish, veins black. 



Length of the body 5 lines ; of the wings 8 lines. 



Para. 



Temnocera circmndata. 



Testacea, antennis luteis, thoracis disco purpureo cupreo, 



abdomine fasciis tribus latis trijunctis nigris, pedibus nigris, 



femoribus ferrugineis basi nigris, alis subcinereis, halteribus 



niveis. 



Testaceous ; antennas luteous ; disk of the thorax purplish 



cupreous ; disk of the pectus black ; abdomen vvith three broad 



black bands, which are connected in the middle and on each 



side ; legs black, coxae tawny, femora ferruginous, black towards 



the base ; wings greyish, veins black, tawny at the base ; halteres 



snow white. 



Length of the body 3| lines; of the wings 8 lines. 

 Valley of the Amazon. 



