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Genus Ogcodes

okay FLY people whos this? - Ogcodes dispar

Small Headed Fly - Ogcodes dispar - male

Acroceridae - Small-headed Fly? - Ogcodes incultus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Diptera (Flies)

No Taxon (Orthorrhapha)

Family Acroceridae (Small-headed Flies)

Genus Ogcodes

Synonyms and other taxonomic changes

revised in(1)

Explanation of Names

Ogcodes Latreille 1797

Numbers

17 described species in 2 subgenera in our area(2), ~90 spp. in 3 subgenera total

Identification

(1)[Cite:1029610](3)

Eyes bare, holoptic in both sexes;

Antenna near bottom of head, flagellum short and rod-like with 1-6 apical setae;

Mouthparts absent, no proboscis;

Abdominal segments typically with posterior bands of uniform width, generally wider in males (details below);

Wing venation distinctive: veins appearing reduced and intermittent, more or less parallel and "streaked", with few or no closed cells;

Tibia not produced apically(2).

Key to species in(1)

Range

worldwide

Remarks

Sexes differ in the form of bands on tergites(3): in males, fasciae well-defined, rather wide, ⅓-⅔ the length of the segment, those on segments 4 & 5 usually wider than those on segments 2 & 3; fasciae in females are somewhat vague, narrow to linear, faint, or absent, the abdominal dorsum looking dark -- see figs 39(♀) & 40(♂) in [Cite:1029610]

Works Cited

1.	A revision of the genus Ogcodes Latreille with particular reference to species of the Western Hemisphere Schlinger E.I. 1960. Proc. U.S. Nat. Mus. 111: 227-336.

2.	Manual of Nearctic Diptera Volume 1 Varies for each chapter; edited by J.F. McAlpine, B.V. Petersen, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, D.M. Wood. 1981. Research Branch Agriculture Canada.

3.	A revision of the American spider parasites of the genera Ogcodes and Acrocera (Diptera, Acroceridae) Sabrosky C.W. 1944. Am. Midl. Nat. 31: 385-413.

Contributed by Keith Bayless on 15 February, 2007 - 12:36am
Additional contributions by Aaron Schusteff, v belov
Last updated 29 July, 2023 - 10:45pm

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