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Genus Apiocera - Flower-loving flies

Apiocerid fly, sp.? - Apiocera - male Quail Hollow apiocerid - Apiocera - male Another sandhills Apiocera - Apiocera - male Apiocera? - Apiocera - male Apiocera haruspex atrifasciata? - Apiocera - female this mimic of Asilidae fooled me (hint: not a robber fly) - Apiocera - male this mimic of Asilidae fooled me (hint: not a robber fly) - Apiocera - male Robberfly - Apiocera
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Apioceridae
Genus Apiocera (Flower-loving flies)
Synonyms and other taxonomic changes
revised in(1)
Explanation of Names
Apiocera Westwood 1835
'pear-horn', refers to the shape of antennomere 3
Identification
Males are easily recognized by their pair of large, dark, bulbous, hemitergites (the dorsolateral covering of the terminalia arising as lateral posterior projections of the ninth tergite(1)).
Females have short, tapering, cylindrical sclerites near the end of the abdomen, the tip covered by numerous, stout, outwardly-radiating, spines.
Some species have distinctive abdominal markings, but for most species ID must be confirmed via examination of male terminalia, visible by properly spreading hemitergites (see here)
Remarks
The genus Apiocera occurs in four widely separated regions of the world, and species in each region are associated with their own subgenus, as listed below:
      1) subgenus Anypenus, 4 spp., South America (Chile, Argentina)
      2) subgenus Apiocera, 74 spp., Australia
      3) subgenus Pyrocera, 68 spp., Western North America (British Columbia, Western U. S., and Mexico)
      4) subgenus Ripidosyrma, 3 spp., South Africa
Print References
Cazier M. (1985). New species and notes on flies belonging to the genus Apiocera (Diptera, Apioceridae). American Museum Novitates 2837: 1-28. (Full text)
Wharton R.A. (1983). The biology of Apiocera haruspex Osten Saken (Diptera: Apioceridae) in central California, and comparison with other Asiloidea. Pan-Pacific Entomologist 58: 296-301
Yeates, D. K. and M. E. Irwin (1996). Apioceridae (Insecta: Diptera): cladistic reappraisal and biogeography. Zool. J. Linn. Soc. 116:247-301.
Internet References
Portal page for photos of type specimens: First click on the species name of interest; then on the "details" link on the resulting page; and finally on the thumbnail images therein.
Works Cited
1.A revision of the North American flies belonging to the genus Apiocera (Diptera, Apioceridae)
Mont A. Cazier. 1982. Bulletin of the AMNH ; vol. 171, pp. 287-467.