LIST OF DIPTERA. 



23. S ARGUS CLAVATUS. 



93 



Mas. Aureo-viridis ; proboscis testacea ; antenna ferruginea ; 

 thorax fidvo-pubescens ; abdomen cupreum obclavaium, lateri- 

 bus pubescentibus ; pedes lutei, femoribus tibiisque posticis 

 apice fascis ; alee nigricantes. 



Male. Golden-green. Proboscis testaceous. Antennae ferru- 

 ginous. Thorax with tawny down. Abdomen cupreous, very slen- 

 der, and almost cylindrical for nearly half the length from the base, 

 widening much from thence to the tip. Legs tawny ; hind femora 

 and hind tibiae brown towards the tips. Wings blackish. Halteres 

 tawny, brown towards the tips. Length of the body 5 lines ; oi 

 the wings 10 lines. 

 a. Para. From Mr. Bates' collection. 



24. Sargus jucundus. 



Cyaneo-purpureus ; caput subtus, antennce et pectus fulva ; abdo- 

 men nigrum, basi subtus fulvum ; pedes flavi, femoribus pos- 

 ticis piceis ; alee cinerece, fusco varice. 



Sargus jucundus, Walk. Zool. viii. Append, xcvi. 

 a. Para. From Mr. Bates' collection. 



25. Sargus fasciatus. 



JEneus ; antennae flavescentes ; scutellum apice flavescens ; abdo- 

 men f us cum, flavo fasciatum ; pedes fulvi; alee sub cinerea. 



Sargus fasciatus, Fabr. Syst. Antl. 259, 15. Wied. Auss. Zweifl. 



ii. 33, 10. 

 Brazil. 



26. Sargus bicolor. 

 Viridi-aureus ; antennce, abdomen et pedes fiava; alee limpid<e. 

 Sargus bicolor, Wied. Auss. Zweifl. ii. 481, 28. 

 Porto Rico. 



