list of dipteka. 497 



5, Discocephala oculata. 



Nigro-fusca ; thorax vitiis duabus margineque luteis ; al<B fuscce. 



Dioctria oculata, Fabr. Si/st. And. 151, 12. 



Dasypogou oculatus, Wied. Dipt. Exot. \. 230, 31 ; Auss. Zweifi. i. 



412, 76. 

 Dasypogon Agalla, Cat. of Diptera, Pt. 2, 361. 



Fore fork of the cuhital vein almost straight, slightly curved at 

 its base ; hind fork and the first and second externo-medial veins 

 straight ; third remote from the fourth, which is very slightly undu- 

 lating ; subaual united to the anal very near the border. 



Brazil. 



6. Discocephala albo-atra. 



Discocephala albo-atra, Diptera Saundersiaua, Pt. 2, 100, pi. 3, 



f. 8. 

 a. Brazil. From Mr. Saunders' collection. 



7, Discocephala nigrita. 



Atra ; alcB limpidcB, triente basilari nigra. 



Dioctria nigrita, Fabr. Syst. Anil. 152, 13. Wied. Dipt. Exot. i. 

 180, 2 ; Auss. Zweifi. i. 366, 4. 



South America. 



8. Discocephala apicalis. 



Atra ; aim nigro-f usees, triente apicali sublimpida, apieefusca. 



Body, antennae and legs black. Wings blackish brown ; apical 

 third part nearly limpid, with the exception of the extreme tips, 

 which are brown. Length of the body 2f lines; of the wings 

 6 lines. 

 «. West Coast of America. Presented by Capt. Kellett and Lieut. 



Wood. 



