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Family Periscelididae

Periscelididae-Periscelis annulata (Fallen) - Periscelis flinti Fly on sycamore - Periscelis occidentalis Fly on sycamore - Periscelis occidentalis Cyamops halteratus Can it relly be this hard to ID? - Periscelis occidentalis periscelidid fly - Periscelis wheeleri Cyamops lateral - Stenomicra
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Family Periscelididae
Explanation of Names
Periscelididae Oldenberg 1914
Numbers
3 spp. in our area(1), ~90 spp. in 11 genera total(2)
Size
3 mm(1)
Identification
Wing with R1 joining C near middle, R4+5 and M not convergent; postocellar setae strong.(1)
Habitat
come to sap oozing from wounded trees(1)
Remarks
rarely encountered(1)
Print References
Sturtevant, A. H. (1954). Nearctic flies of the family Periscelidae (Diptera) and certain Anthomyzidae referred to the family. Proceedings of the United States National Museum, Vol. 103, No. 3332. (3)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Order Diptera Linnaeus, 1758. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
Pape T., Blagoderov V., Mostovski M.B. 2011. Zootaxa 3148: 222–229.
3.Nearctic flies of the family Periscelidae (Diptera) and certain Anthomyzidae referred to the family
A. H. Sturtevant. 1954. Proceedings of the United States National Museum, Vol. 103, No. 3332.