Texas Cooperative Extension, Texas A&M University System
Department of Entomology, Texas A&M University

Order Acari


Ticks and mites are wingless, lack antennae and usually are flat or round bodied. Adults have eight legs, although some immature stages have only six legs. All members have piercing-sucking mouthparts. Many are microscopic. Ticks only feed on blood of animals. Ticks are responsible for spreading disease organisms such as the organism that causes Rocky Mountain spotted fever in man and cattle fever in cattle. Little metamorphosis is present, because adults resemble young and no wings are present. There are usually four stages; egg, larva, nymph and adult. (The terms larva and nymph are not used the same here as in the insects.)

Arthropods in this order: lone star tick, chiggers, house dust mite.

See Acari for all listings.

Lone star tick, Amblyomma americanum (Linnaeus).  Photo by Jackman.
Click on image to enlarge
Lone star tick,
Amblyomma americanum (Linnaeus)
(Acari: Ixodidae).
Photo by Jackman.

From the book:
Field Guide to Texas Insects,
Drees, B.M. and John Jackman,
Copyright 1999, Gulf Publishing Company,
Houston, Texas

A Field Guide to Common Texas Insects, Bastiaan M. Drees and John A. Jackman.
Texas A&M University
Texas A&M University •  Department of Entomology  •  412 Heep Center, TAMU 2475
College Station, TX 77843-2475 • 979.845.2516
Department of Entomology at Texas A&M University