Notiophilus semistriatus - Notiophilus biguttatus

Moved

… Brad Barnd, 22 May, 2011 - 10:36pm

I am not sure this is N. semistriatus, but am leaning towards N. novemstriatus or N. biguttatus. Compare your images to those here.

The second interval on yours seems to much wider than that pictured on the GBC website, more in line with novemstriatus/biguttatus. I do realize that they do not list these species from Ontario, but novemstriatus is known from Nova Scotia and Michigan, and biguttatus is known from NB, NF, and NS (and Europe).

… Brad Barnd, 27 January, 2008 - 12:14am

If not

If not semistriatus, then I might lean towards N. biguttatus. Compared to novemstriatus, it has denser rows of finer punctuation. The shape of the margin of the second interval is less straight than in novemstriatus. Overall color goes well with biguttatus also.
biguttatus is a non-native species, and probably expanded its NA range into Ontario. The Coleoptera Checklist is an outdated source, which led to my discounting other Notiophilus species. I was not careful enough on this ID at the time.

… Stephen Luk, 27 January, 2008 - 2:28pm

vote for biguttatus

and, Stephen: could you please flip your pix so that the specimen faces 'north'? standard orientation makes image recognition a lot easier

… v belov, 30 March, 2009 - 9:36am

regarding N.aquaticus

I may add that the species is different from this one in two more aspects:
1. the smooth band along the suture is less wide
2. the elytra are not pale at the end.

I add a POSSIBLE example of aquaticus:

Maybe you can confirm its identity by exclusion?

… Boris Büche, 8 May, 2007 - 7:16am

Confirmed

Examination of the individual revealed that its elytra are pale-ended and the band along the suture is wide. Thanks for the additional info :-)

… Stephen Luk, 8 May, 2007 - 2:07pm

Moved

Moved from Notiophilus.

… Boris Büche, 8 May, 2007 - 7:11am