Antiteuchus sp.

Stink Bug

Antiteuchus sp., Stink bug from Amazon (Rio Negro), Brazil

Family: Pentatomidae

Subfamily: Discocephalinae

Tribe: Discocephalini

Length: bug in photo 10.7 mm


Antiteuchus (46 species) is widespread in tropical South America, and is also found in Central America. Bugs in this genus have a rostrum that reaches the fifth abdominal segment (seen ventrally when the bug is at rest). Dorsally the bugs are glossy and punctate, with contrasting light and dark colors. The connexivum in particular has a pattern of alternating light and dark colors. In males at least, the 10th abdominal segment (viewed dorsally) is partially membranous (Fernandes, 2006).

In at least some species of Antiteuchus the mothers guard the eggs and early instar nymphs. Studies show that her presence greatly reduces predation, as well as the parasitism attemped by Scelionid wasps (Santos and Albuquerque, 2001).

The bug shown here was found in a hotel garden in Novo Airão, Amazonas state, Brazil.  The Río Negro was ten meters distant.

Determined by Dr. Donald B. Thomas, USDA Agricultural Research Service.

American Insects site