160 DUKHAM DIPTERA. 



Sub-Order II.— CYCLORRHAPHA. 



Flies with barrel-shaped pupae. 



Section III.— PROBOSCIDEA. 



A full and exact description of every British species in the 

 first three families will be found in Mr. Verrall's " British 

 Syrphidae," from which the tables of these families are almost 

 entirely extracted. Mr. Verrall deserves the warmest thanks 

 of all lovers of flies for his splendid work. May he be spared 

 to complete his gigantic undertaking. 



Family XXVL— PLATYPEZID^E. 



The larvae of Platypeza have been found in fungi, the life 

 history of the rest is unknown. 



TABLE OP GENERA AND SPECIES. 



1 (4). X.5 2 absent; humeral bristle conspicuous. 



2 (3). V.4. forked. 



261. Opetia, Mg. 



1375. Opetia nigra, Mg. 

 Hesleden, 2 $ , 5-8-02 ; Craster, Northumberland, 

 1 $, 2-8-05. 



3 (2). V.4. not forked. 



262. Platycnema, Ztt. 



1376. Platycnema pulicaria, Fin. 

 Bishop Auckland, 1 $, 1 1-7-00. 



4 (1). X.5 2 present (V. 17); humeral bristle absent. 



5 (12). V.4. not forked. 



6 (9). V.l.b. spinose; third antennal joint short. 



263. Callimyia, Mg. 



7 (8). Halteres of the male blackish ; female with four 



yellow or silvery bands on the abdomen. 

 1377. Callimyia speciosa, Mg. 

 Bishop Auckland, 1 $, 21-6-01, 1 $, 24-6-02. 



