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TaxonomyBrowse
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Genus Polacantha

Polacantha gracilis - male Fly? Side View - Polacantha gracilis Robber Fly? - Polacantha Polacantha arcuata female? - Polacantha arcuata - female Unidentified Fly - Polacantha Robberfly - Polacantha - male Polacantha sp. - Polacantha asilidae sp - Polacantha - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Asilidae (Robber Flies)
Subfamily Asilinae
Genus Polacantha
Explanation of Names
Polacantha Martin 1975
Greek polys (πολυς) 'many' + akantha (ακανθα) 'thorn' --according to Martin, "referring to the patch of strong bristles inside the epandrium"
Numbers
6 spp. in our area, 11 total(1)
Range
so. US & Mexico; in our area, P. gracilis in se. US, the rest are southwestern (P. composita to OR)(1)
Remarks
6 species in the U.S.: P. pegma in California, P. grossa and P. sinuosa in Texas, P. arctuata in Arizona, P. gracilis from Maryland to Florida, P. composita from Oregon to Utah and south. There are several species in Mexico as well. This geographic data shouldn't be used to identify these flies as the ranges are likely to be broader.