VCSU Macro-Invertabrate Lab
Main Key
Order List
Diptera Family List
Diptera Family Key
Tabanidae Genus List
Tabanidae Genus Key
Glossary of Terms
:: Home ::
Quick Search:
Advanced.. Search
Order Diptera - The Horse and Deer Flies
Distinguishing characteristics - Larvae of the horse flies and deerflies have an elongate body that tapers at both ends (Fig. A). Abdominal segments 1-7 possess several encircling rings (Fig. B) and the abdomen ends in a small respiratory siphon (Fig. C). The head is partially retracted into the thorax (Fig. D).

Tolerance Value - 7

Feeding Group - Predator

Notes - Female adult horse flies and deer flies inflict a painful bite to both humans and animals. The larvae are almost always aquatic or semiaquatic and are found in a wide variety of aquatic environments. Most are predators, however Chrysops, one of the most common genera, feed on fine detritus. The size of the horse and deer Fly larvae at maturity is 11-55 mm.

Penny Picture

Range Map

This web site is funded by Region VIII EPA Section 319 funds administered by the North Dakota Department of Health.
|Contact Us |Acknowledgements |

Valley City State University - 101 College Street SW - Valley City, ND 58072 - 1-800-532-8641
|xhtml |css |508