Euschistus tristigmus
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Euschistus tristigmus |
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| Euschistus tristigmus | ||||||||||||
| ( Say , 1832) |
Euschistus (Euschistus) tristigmus is a type of bug from the family of stink bugs (Pentatomidae). It is the type species of the genus Euschistus . Its English name is Dusky Stink Bug ("Dark colored stink bug ").
features
The 8–12 mm long gray-yellow bugs are darkly pigmented. The pronotum has acute angles on the sides (in contrast to the similar species Euschistus servus ). On the abdominal side there are 1–4 dark spots in the middle, which are used as identifying features.
Occurrence
Euschistus tristigmus occurs in the Nearctic . Their distribution area extends east of the Rocky Mountains from Canada over the United States to Mexico.
Way of life
Euschistus tristigmus is a polyphagous type of bug with a wide range of forage plants. The bugs cause damage to various fruit trees such as peach and apple. The soybean is also one of their forage crops. Euschistus tristigmus is considered an economically significant pest in the USA .
The species is bivoltine and overwinters as an imago.
Subspecies
A distinction is made between the following subspecies, with the first occurring in the southeastern United States and the second in the northern United States:
- Euschistus tristigmus luridus Dallas , 1851
- Euschistus tristigmus tristigmus Say , 1832
gallery
1. Nymph stage
2. Nymph stage
Underside of female (left) and male (right)
etymology
The additional species tristigmus is derived from Latin and means "three spots".
Individual evidence
- ↑ a b c Euschistus tristigmus (Say, 1832) in the Integrated Taxonomic Information System (ITIS)
- ↑ a b c d e f Species Euschistus tristigmus . bugguide.net. Retrieved January 6, 2017.
- ↑ a b K. Kamminga et al .: Field Guide to Stink Bugs (PDF 1.9 MB) Virginia Integrated Pest Management. Retrieved January 6, 2017.
- ↑ a b Integrated Pest Management - Dusky stink bug . Michigan State University. Retrieved January 6, 2017.
- ↑ a b c Euschistus tristigmus - Dusky Stink Bug . americaninsects.net. Archived from the original on January 6, 2017. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved January 6, 2017.
Web links
- Euschistus tristigmus (Say, 1832) in the Integrated Taxonomic Information System (ITIS) - taxonomy