Horse Fly or Deer Fly
( Tabanidae )


2010-0609-EB330001-DIP01577-Tabanidae[1359h15s,F,A,plant-flower]{EXD}-G.jpg

PHOTO COMMENT

IDENTIFICATION
Identification:Tabanidae
(Latreille, 1802)
Common Name:Horse Fly or Deer Fly
Life Stage:(A) adult

PHYLOGENY

Phylum:Arthropoda
Class:Insecta
Superorder:Holometabola
Order:Diptera
Suborder:Brachycera
Family:Tabanidae
Taxon Code:DIP01577
ITIS/TSN:130934

LOCATION DETAILS
Location Name
Martin Luther King Jr. Regional Shoreline, Martin Luther King Jr. Regional Shoreline, Martin Luther King Regional Shoreline, EBRPD, Oakland
County:Alameda County
ECI Site#:CAEB330000
Park/Forest Code:Martin Luther King Regional Shoreline, EBRPD

RECOGNITION
Description
Stoutly built flies with large squamae (scales above the halteres, also called calypters); feet with 3 pads (as opposed to 2); 3rd antennal segment elongated, clearly made up of several fused parts; 3rd antennal segment with a prominent tooth at base in some groups; wing veins R4 and R5 fork to form a large 'Y' across the wing tip.
Body Length
8-25 mm.

BIOLOGY
Food
Immatures mainly carnivorous, a few eat detritus. Adults feed on flower nectar and pollen. Females (but not males) suck vertebrate blood which they need to produce eggs.
Habitat
Adults wide ranging; larvae found in streams, ponds, and marshes, especially along the edges and in the sea shore.
Distribution
Worldwide and throughout North America.
Active Period
Summer, in California.
Development
Up to several years in larval stage.

CREDITS
Photographer
Eddie Dunbar
Insect Sciences Museum of California

References
Family Tabanidae - Horse and Deer Flies. (http://bugguide.net/node/view/117). Accessed March 12, 2016. .
ITIS.


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