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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Ground Beetles (Carabidae) » Harpalinae » Harpalitae » Platynini » Tanystoma » Tule Beetle (Tanystoma maculicolle)
Photo#90686
Sexing Agonum (Tanystoma) maculicolle: Tule Beetle - Tanystoma maculicolle
Copyright © 2006 Paolo Sanguankeo

Sexing Agonum (Tanystoma) maculicolle: Tule Beetle - Tanystoma maculicolle
paso robles, san luis obispo County, California, USA
October 5, 2006
Size: 11 mm
I was trying to determine the sex of this beetle, but the abdomen is so dark that I could see whether it has a penis or not. However, I did notice there are 4 setae on the tip of the ventral side of the abdomen on certain ones, and only 2 on the rest (see the pictures). Also, certain beetles are darker, with two pronounced spot on the pronotum. Does anyone have an idea which of these characteristics determines the sex of this carabid species. You guys are awesome!! Thanks, Paolo

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Sexing Agonum (Tanystoma) maculicolle: Tule Beetle - Tanystoma maculicolle Sexing Agonum (Tanystoma) maculicolle: Tule Beetle - Tanystoma maculicolle Sexing Agonum (Tanystoma) maculicolle: Tule Beetle - Tanystoma maculicolle Sexing Agonum (Tanystoma) maculicolle: Tule Beetle - Tanystoma maculicolle
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Contributed by Paolo Sanguankeo on 21 December, 2006 - 5:20pm
Last updated 14 July, 2007 - 2:10pm

Moved
Moved from Agon*um.

Checking American Beetles, this species is mentioned as one of five members of this West Coast genus.
… Jim McClarin, 14 July, 2007 - 2:10pm login or register to post comments

Platynini
The genus is Tanystoma.

kip
… Kipling Will, 14 July, 2007 - 1:21pm login or register to post comments

Moved
Moved from Beetles. (Trying to clear out identified beetles in unidentified coleoptera section.)
… Jim McClarin, 4 February, 2007 - 2:51pm login or register to post comments

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