Species Details

Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

SeasonalityMarch to October. Most frequently collected July to August. IdentificationDorsum black, body short and narrow (Fall 1922). Dorsal surface dull from scale like microreticulation (net-like pattern visible at 40x magnification) (Oygur and Wolfe 1991). Dorsum of abdominal segments 4-7 black, 8th abdominal segment, thorax, and legs reddish orange (Oygur and Wolfe 1991). Underside of mid-thoracic segment (mesosternum) with a medial groove running anterior-posteriorly (Oygur and Wolfe 1991). Triangular plate (scutellum) between hardened fore-wings (elytra) with a raised ridge running anterior-posteriorally. Gender can be determined by the presence of an expansion of footpads (pro-tarsi) on the front legs of males. Size: male length 3.3-4.9 mm and width 1.7-2.0 mm. Female length 3.7-4.4mm and width 2.0-2.3 mm.

Scientific Name Gyrinus minutus Habitat Surface of most lentic and lotic waters. Prefer edges of water bodies (Oygur and Wolfe 1991). Seasonality March to October. Most frequently collected July to August. Identification
Dorsum black, body short and narrow (Fall 1922). Dorsal surface dull from scale like microreticulation (net-like pattern visible at 40x magnification) (Oygur and Wolfe 1991). Dorsum of abdominal segments 4-7 black,…
Dorsum black, body short and narrow (Fall 1922). Dorsal surface dull from scale like microreticulation (net-like pattern visible at 40x magnification) (Oygur and Wolfe 1991). Dorsum of abdominal segments 4-7 black, 8th abdominal segment, thorax, and legs reddish orange (Oygur and Wolfe 1991). Underside of mid-thoracic segment (mesosternum) with a medial groove running anterior-posteriorly (Oygur and Wolfe 1991). Triangular plate (scutellum) between hardened fore-wings (elytra) with a raised ridge running anterior-posteriorally. Gender can be determined by the presence of an expansion of footpads (pro-tarsi) on the front legs of males. Size: male length 3.3-4.9 mm and width 1.7-2.0 mm. Female length 3.7-4.4mm and width 2.0-2.3 mm.
Life History
Has been collected in schools of mixed species also containing G. maculiventris, G. pectoralis, and G. picipes (Fall 1922). Gyrinus minutus does not produce toxic, volatile chemicals at the same intensity of may other…
Has been collected in schools of mixed species also containing G. maculiventris, G. pectoralis, and G. picipes (Fall 1922). Gyrinus minutus does not produce toxic, volatile chemicals at the same intensity of may other Gyrinus sp. (Ivarsson et al 1996). This may be reflective of G. minutus apparently favoring smaller bodies of water less likely to support predatory fish (Ivarsson et al 1996). These chemicals may function instead in chemical communicatioin (Ivarsson et al 1996).
Conservation Not apparently threatened. Range Records from Alaska to Kansas, Newfoundland to B.C.
Gyrinus minutus
Gyrinus minutus

Citation

Page Citation for Gyrinus minutus

Page Citation

"Species Details - Gyrinus minutus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-5965. Accessed 29 Mar. 2024.

Authorship

Name Esch, E.
Role species page author
Date 2006

References

Specimen Information

There are 13 specimens of this Species.

13 results plotted on map in 2 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM93613 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Bistcho Lake Collected ByShpeley, D. Date Collected1987-06-14/1987-06-17

UASM93614 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Bistcho Lake Collected ByShpeley, D. Date Collected1987-06-14/1987-06-17

UASM93615 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Bistcho Lake Collected ByShpeley, D. Date Collected1987-06-14/1987-06-17

UASM93616 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Bistcho Lake Collected ByShpeley, D. Date Collected1987-06-14/1987-06-17

UASM93617 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Bistcho Lake Collected ByShpeley, D. Date Collected1987-06-14/1987-06-17

UASM93618 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Bistcho Lake Collected ByShpeley, D. Date Collected1987-06-14/1987-06-17

UASM93619 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Andrew Lake Collected ByShpeley, D. Date Collected1988-06-17

UASM93620 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Andrew Lake Collected ByShpeley, D. Date Collected1988-06-17

UASM93621 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Andrew Lake Collected ByCarr, F. S. Date Collected1923-08-21

UASM93622 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Andrew Lake Collected ByCarr, F. S. Date Collected1923-08-21

UASM93623 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Andrew Lake Collected ByCarr, F. S. Date Collected1923-08-21

UASM93624 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Andrew Lake Collected ByCarr, F. S. Date Collected1923-08-21

UASM93625 - Gyrinus minutus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Andrew Lake Collected ByCarr, F. S. Date Collected1923-08-21

Adult Seasonal Distribution