706 LIST OF DIPTERA. 



154. AsiLUS LONGIUSCULUS. 



Mas. Cinereus ; caput subtus et pectus albida, ilium anlice sub- 

 auratum ; mystax pallide fiavus ; thorax viltis tribus latissi- 

 mis nigricanlibus, lateralibus interruptis ; abdominis dorsum 

 nigricans, marginibus posticis cinereis, apice nigro nitido ; 

 pedes nigri, tibiis fulvis ; aloe fuse ce ; halteres nigri. 



Cinereous. Head pale and slightly gilded in front, whitish 

 and clothed with white hairs beneath. Thorax with three very 

 broad blackish stripes ; middle one subdivided ; lateral pair obliquely 

 interrupted. Abdomen blackish above; hind borders of the seg- 

 ments cinereous. Sexualia black, shining. Legs black; tibiae 

 tawny. Wings brown; veins and halteres black. Length of the 

 body 7 lines; of the wings 10 lines. 



o. Santarem, Brazil. From Mr. Bates' collection. 



155. AsiLUS CLAVATUS. 



Melleus ; antennce nigra, basi fulva; palpi fulvi ; pedes fiavi, 

 femoribus supra nigricantibus ; alai Jlavescentes. Mas. — 

 Anus crassus, lamella cornea munitus. 



Asilus clavatus, Macq. Dipt. Exot. i. 2, 147, 30. 



Brazil. 



156. Asilus tenuis. 



Mas. Albidus ; mystax albus ; antennce nigra, articulo 3o basi 

 fiavescente ; thorax nigro vittatus ; abdomen parum nigellum ; 

 pedes lutei, femoribus supra nigris, posticis fascia apicali 

 nigra ; ala limpida, apice et margine postico cinereis. 



Asilus tenuis, Wied. Auss. Zweifl, i. 448, 35. 



Brazil. 



157. Asilus mellipes. 



Mas. Cinereus ; mystax fiavescens ; antenna nigra ; thorax 

 nigro vittatus; abdomen fuscum, utrinque canescens ; pedes 

 flavi, tibiis posticis femoribusque nigro vittatis ; ahc subfia- 

 vescentes. 



Asilus mellipes, Wied. Auss. Ziveifl. i. 452, 41. 



Brazil. 



