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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Elateriformia » Buprestoidea » Metallic Wood-boring Beetles (Buprestidae) » Agrilinae » Tracheini » Pachyschelus » Pachyschelus purpureus
Photo#8697
tiny black beetles - Pachyschelus purpureus
Copyright © 2004 Robin McLeod

tiny black beetles - Pachyschelus purpureus
London, Ontario, Canada
May 18, 2004
Length about 3 mm; two individuals resting but not feeding on leaf of ash (Fraxinus). Same species seen 28 May resting on elder (Sambucus). Resembles drawing of Pachyschelus sp. (Buprestidae) here (distally expanded tibiae are evident in my photo) and the photo of P. secedens here but that species doesn't occur in Ontario, according to the Natural Heritage Information Centre. Anyone recognize these?
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Contributed by Robin McLeod on 21 November, 2004 - 11:57am
Last updated 21 July, 2014 - 11:13am

P. purpureus?
Pretty certain this is Pachyschelus purpureus. Larvae are leaf miners, and the adults, while common, are easily overlooked, or dismissed as something else (like hister beetles, eh?:-). Nice work paying attention to the "small stuff!" Keep it up.
… Eric R. Eaton, 22 November, 2004 - 11:59am login or register to post comments

 
P. purpureus?
Thanks, Eric; purpureus is one of 3 Pachyschelus species in Ontario. I haven't seen the others and didn't come across these guys again after May.
… Robin McLeod, 22 November, 2004 - 7:40pm login or register to post comments

 
Sure
This is P. purpureus purpureus - the white markings tell all. The other species are either all black, all blue OR bicolored, elytra blue and pronotum black.

Hespenheide, H.A. 2003. A Reconsideration of Pachyschelus schwarzi Kerremans and a Review of American Pachyschelus North of Mexico (Coleoptera: Buprestidae) Coleopterists Bulletin 57(4): 459-468.
… Phillip Harpootlian, 17 March, 2005 - 8:32am login or register to post comments

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