Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Information, insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowse
Info
ImagesLinksBooksData

Subgenus Pachyconops

Conopinae: Physoconops or Physocephala? - Physoconops excisus - male Thick-headed Fly - Physoconops ? - Physoconops brachyrhynchus - male Conopinae - Physoconops - female Conopidae- Thick-headed flies, ID Please - Physoconops excisus - female Conopidae- Thick-headed flies, ID Please - Physoconops excisus - female Curated Physoconops gracilis 1 (from the Essig Museum, U.C. Berkeley) - Physoconops gracilis - male Conopinae on milkweed - Physoconops townsendi - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Sciomyzoidea
Family Conopidae (Thick-headed Flies)
Subfamily Conopinae
Genus Physoconops
No Taxon Subgenus Pachyconops
Numbers
7 species in our area(1)(2):
  Physoconops (Pachyconops) brachyrhynchus (Macquart) 1843
  Physoconops (Pachyconops) bulbirostris (Loew) 1853
  Physoconops (Pachyconops) excisus (Weidemann) 1830
  Physoconops (Pachyconops) floridanus Camras 1955
  Physoconops (Pachyconops) gracilis (Williston) 1885
  Physoconops (Pachyconops) townsendi Camras 1955
  Physoconops (Pachyconops) weemsi Camras(2) 2007
Identification
From pg. 161 of Camras (1955) and the MND(3), the subgenus Pachyconops is distinguished by:
    1) 3rd antennal segment relatively slender, more than 2/3 the length of the 2nd antennal segment;
    2) frons shorter than wide; vertex small, much shorter than frons;
    3) dark pattern in posterior cell, if present, relatively wide.
Similar to the subgenus Physoconops, but having the front shorter than wide, and having antennal segment 3 about equal to segment 2. The triangular polished space on the posterior margin of the eye is very small or absent.
Range
From (1):
  P. brachyrhynchus: WY to MA, s. to NM and FL
  P. bulbirostris: IN to NJ, s. to TX and FL
  P. excisus: CO to NY, s. to OK and FL
  P. floridanus: FL, NC (and NJ(2))
  P. gracilis: CA to CO, s. to TX and Mexico
  P. townsendi: CA, AZ, NM, TX
  P. weemsi(2): FL, GA
Remarks
Remarks on New World Physoconops subgenus Pachyconops can be found in Camras (1955) starting on pg. 161. A key to species appears at the end of that paper, on pg. 184.
For hyperlinks to original detailed descriptions, check the BugGuide "Info" tab page for each individual species (look under the "Synonyms and other Taxonomic Changes" section).
Print References
Camras, Sidney (1955). "A Review of the New World Flies of the Genus Conops and Allies (Diptera: Conopidae)", Proc. U. S. Nat. Mus., Vol. 105, pp. 155-187 (Full Text)
Works Cited
1.A Catalog of the Diptera of America North of Mexico
Alan Stone, et al. 1965. United States Department of Agriculture.
2.A new conopid fly from Florida and Georgia (Diptera: Conopidae)
Sidney Camras. 2007. Insecta Mundi 0007: 1-4.
3.Manual of Nearctic Diptera Volume 2
Varies for each chapter; edited by J.F. McAlpine, B.V. Petersen, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, D.M. Wood. 1987. Research Branch Agriculture Canada.