LIST OF DIPTERA. 



2. Sargus C&RULEICOLLIS. 



Cceruleus; abdomen aneum ; pedes fusci, genubus tarsisque flavis , 

 a Ice ma cu la fusca . 



Sargus caeruleicollis, Megerle ; Meig. Zweifl. iii. 107, 2. 

 Sargus cuprarius, var, ? 



3. Sargus iridatus. 



JEneus ; antenna maris fusca, foeminae fulva ; oculi fascia pur- 

 purea ; abdomen maris cuprenm, foeminae violaceum ; pedes 

 obscure fusci ; alee infuscatce. 



Musca iridata, Scopoli, Ent. Cam, 340, 914. 



Musca cuprarius, Linn. (In Linn. Coll.) 



Sargus infuscatus, Hoffim. ; Meig. Dipt. Scand. i. 158, 3. 



a—f. England. From Mr. Stephens' collection. 

 g. France* Presented through M. Becker. 



4. Sargus nubeculosus. 



JEneus; antenna maris fusca, fcdmin& fulva ; oculi unicolores ; 

 abdomen maris cupreum, fceminae violaceum; pedes fusci ; 

 ala infuscata. 



Sargus nitidus, Meig. Zweifl. iii. 108, 4. Macq. Hist. Nat. Dipt. 



i. 261, 3. Zett, Dipt. Scand. i. 159, 6. Loew, Isis, 1840, 



553, 4. 

 Sargus nubeculosus, Zett. Dipt. Scand. i. 157, 2. 



a—f. England. From Mr. Stephens' collection. 



5. Sargus nigripes. 



Mas. Aureo-viridis ; antenna pedesque nigra ; abdomen cupreum, 

 posterius concolor ; ala fusco-hyalina ; halteres albidi ; geni- 

 culis omnibus summis metatarsisque posticis, flavescentibus, 



Sargus nigripes, Zett. Dipt. Scand. i. 159,5, 

 Sweden. 



