PROCEEDINGS OF SECTION D. 535 
Eristalis, Latr., are put down as numbering fifteen and eleven 
species respectively; the remaining genera, Brachyopa, Meig., 
Ceria, Fabr. Cheilosia, Meig., Chrysogaster, Meig., Chrysotoxum, 
Meig., Cozloprosopa, Macq., Criorrhina, Macq., Cyphipelta, Bigot, 
Deineches, Wik., Zumerus, Meig., Helophilus, Meig., Hemilampra, 
Macq., MJelanostoma, Sch., Merodon, Latr., Mesembrius, Rond., 
Microdon, Meig., Mixogaster, Macq., Orthoprosopa, Macq., Psilota, 
Meig., Spherophoria, St. Farq., and Xy/ota, Meig., have mostly 
only one, but never more than three, species described as Aus- 
tralian. The genera Cozloprosopa, Cyphipelta,, Detneches, Hemt- 
lampra, and Orthoprosopa seem peculiar to Australia, none 
having been yet recorded from other countries. 
The total number of species on paper is sixty-one, though it is 
scarcely probable that they are all tenable ; Schiner, in 1868, put 
the Australian species down at 53, and even this includes the 
New Zealand species. 
The Syrphide are numerous all over Australia, and doubtless 
there is a large number of unknown forms ; there is a considerable 
number of undescribed species in the Macleay collection. 
The cosmopolitan species, Zristalis tenax, Linn., occurs in 
Australia and New Zealand. 
Dr. Williston (Bull. U.S. Nat. Mus. No. 31, Washington, 1886) 
has monographed the North American species, and compiled a 
complete list of all known genera, with synonyms. 
Fam. 31. Conopip®. 
The universal genus Cozofs, Linn., is credited with twelve 
Australian species. The only other genus known here is the 
endemic Pleurocerina, Macq., of which a single example is recorded. 
Conops occurs throughout the continent. 
Fam. 32, PIrPuNcULIDa. 
No species have been hitherto described from Australia. There 
are specimens belonging to the well-known genus Pipunculus, 
Latr., in the Macleay collection. 
Fam. 33. PLATyYPEzID®. 
None yet recorded.. I know one or two species of Platypeza 
Meig., or an allied genus. 
Fam. 34. CéstrRIp&, 
No Australian examples hitherto recorded. Sir William 
Macleay informs me that a fly which may belong to this family 
attacks the natives of northern Australia. Cstrus ovis, Linn., is 
said to have been introduced into this country (Proc. Roy. Soc. 
Tasm., 1884, p. 258, by A. Morton) 
