This species is between 0.5 and 0.75 inches long. It is dark brown to black in color with a lighter margin along the abdomen. The wings lie flat across the back. The "beak" has three segments and curls beneath the head. The nymph is similar in appearance but it is smaller and lacks wings.
This insect and others of its genus live in the nests of animals such as pack rats (genus Neotoma). They become pests when they invade houses. They bite humans, producing irritation to the skin and sometimes severe allergic reactions.
- Conenose Bugs. Pests of Homes, Structures, People, and Pets. Publication 7455, University of California Agriculture and Natural Resources.
- Triatoma protracta. Parasites - American Trypanosomiasis (also known as Chagas Disease). United States Centers for Disease Control and Prevention (CDC).
- Martínez-Ibarra, J. A., et al. (2012). The biology of three Mexican-American species of Triatominae (Hemiptera: Reduviidae): Triatoma recurva, Triatoma protracta and Triatoma rubida. Memórias do Instituto Oswaldo Cruz, 107(5), 659-663.
- Hwang, W. S., Zhang, G., Maslov, D., & Weirauch, C. (2010). Infection rates of Triatoma protracta (Uhler) with Trypanosoma cruzi in Southern California and molecular identification of trypanosomes. The American Journal of Tropical Medicine and Hygiene, 83(5), 1020-1022.
- Wood, S. F. and F. D. Wood. (1967). Ecological relationships of Triatoma p. protracta (Uhler) in Griffith Park, Los Angeles, Calif. Pacific Insects 9(3) 537-50.
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