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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Ground and Water Beetles (Adephaga) » Ground Beetles (Carabidae) » Harpalinae » Pterostichitae » Woodland Ground Beetles (Pterostichini) » Cyclotrachelus » Subgenus Evarthrus (Cyclotrachelus Subgenus Evarthrus) » substriatus group (Cyclotrachelus substriatus group) » Cyclotrachelus substriatus
Photo#712357
Cyclotrachelus substriatus (LeConte) - Cyclotrachelus substriatus - female
Copyright © 2012 Mike Quinn

Cyclotrachelus substriatus (LeConte) - Cyclotrachelus substriatus - Female
Dick Nichols District Park, sw. Austin, Travis County, Texas, USA
October 4, 2012
Det. P. W. Messer, 2016 (based on microscopic re-examination of this specimen)

coll’ed at UV light

spmn in the PWMC, Milwaukee, Wisconsin

Images of this individual: tag all
Cyclotrachelus substriatus (LeConte) - Cyclotrachelus substriatus - female Cyclotrachelus substriatus (LeConte) - Cyclotrachelus substriatus
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Contributed by Mike Quinn on 8 October, 2012 - 8:46am
Last updated 13 June, 2021 - 12:08pm

Moved, based on Peter's comment below
Moved from Cyclotrachelus constrictus.
… Curt Harden, 3 May, 2020 - 7:07pm login or register to post comments

Back to Cyclotrachelus substriatus
based finally on convincing C. constrictus that I examined from AZ that is clearly different from the specimen posted here. Sorry for yet another switch.
… Peter W. Messer, 24 February, 2016 - 9:05pm login or register to post comments

moved to Cyclotrachelus constrictus (Say) = 3000 apologies
Mike, I changed this page from the previous assigned name "Cyclotrachelus substriatus" to this one based on new comparative insights gained from additional material.
… Peter W. Messer, 30 April, 2014 - 8:51am login or register to post comments

Moved
Moved from Woodland Ground Beetles.
… Mike Quinn, 23 January, 2013 - 11:20am login or register to post comments

Cyclotrachelus (Evarthrus) constrictus (Say)
This reply updated 4/30/2014
Cyclotrachelus (Evarthrus) constrictus (Say)
based on my microscopic examination of this female specimen which is now a photo-voucher in the P.W.Messer collection. Thanks Mike.

You posted two identical set of images under BG # 712357 & 712358. You mailed me two such specimens from same location but with two different dates: Oct 2 (ABL ~ 11 mm) and Oct 4 (ABL ~ 13 mm).


Note: This species separates from the few juxtapositional species in Freitag (1969) by the following combination:

1) Prontum strongly constricted at base.
2) So-called "umbilicate" punctures along anterolateral border of shoulder are not surrounded by prominent elevated ridges.
3) Elytral apex moderately sinuate.
4) Without prominent knob along border of last abdominal sternite.
5) Body length not more than 12.8 mm.
… Peter W. Messer, 23 January, 2013 - 10:30am login or register to post comments

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