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Genus Thyridanthrax

Fly Alight - Thyridanthrax andrewsi black small fly - Thyridanthrax atratus Bee Fly - Thyridanthrax Bombyliidae - Thyridanthrax Dark bombylid - Thyridanthrax atratus Thyridanthrax fenestratoides? - Thyridanthrax fenestratoides can you ID this fly? there is also a Thomisus spider there.  - Thyridanthrax melanopterus Unknown Diptera - Thyridanthrax nugator - male - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Bombyliidae (Bee Flies)
Subfamily Anthracinae
Tribe Villini
Genus Thyridanthrax
Explanation of Names
Thyridanthrax Osten Sacken 1886
Greek thyridos 'window' + genus name Anthrax (refers to transparent areas in the dark parts of wings)
Numbers
11 spp. in our area, >50 spp. worldwide(1)
Identification
¾ of spp. in the Old World (mostly Palaearctic); in our area, sw. US to OR-ID-KS(1)