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Species Page - Gyrinus maculiventris
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scientific name    Gyrinus maculiventris    

habitat
More likely to be collected from surface lentic waters. Also found on surface lotic waters.

seasonality
May to August. Most Frequently collected July to August.

identification
Elongate and moderately convex (Fall 1922). Dorsum of abdominal segments 4-7 medially black, abruptly changing to orange laterally (Oygur and Wolfe 1991). Hardened fore wing (elytra) with 11th row (most lateral) of elytral punctures (stria) close to margin in apical half (posterior of body). Elytra shiny, lacking evident microreticulation. Apical margin of male genitalia (aedeagus) sinuate, basally flattened. Male length 5.0-5.9 mm and width 2.8-3.1 mm. Female length 6.0-6.5 mm and width 3.1-3.4 mm (Oygur and Wolfe 1991).

life history
Has been collected in schools of mixed species also containing G. minuts, G. pectoralis, and G. picipes (Fall 1922).

conservation
Not apparently threatened.

range
New Brunswick to Alaska. Alaska south to West Virginia.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=5967



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References (2)
Specimen Info
There are 23 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (23)

 

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