Hylastes keyed but doubtful - Dendroctonus terebrans - BugGuide.Net

HomeGuideID RequestRecentFrassForumsDonateHelp

Clickable Guide

Calendar

Upcoming Events

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Previous events

TaxonomyBrowseInfoImagesLinksBooksData

Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Curculionoidea » Snout and Bark Beetles (Curculionidae) » Bark and Ambrosia Beetles (Scolytinae) » Hylurgini » Dendroctonus » Black Turpentine Beetle (Dendroctonus terebrans)

Photo#1522833

Copyright © 2018 Derek Robertson

Hylastes keyed but doubtful - Dendroctonus terebrans

Georgia, USA

This keyed out as a Hylastes according to my sources but the antenna is not consistent with the Hylastes references I have.

Images of this individual: tag all

Hylastes keyed but doubtful - Dendroctonus terebrans

Hylastes keyed but doubtful - Dendroctonus terebrans

Hylastes keyed but doubtful - Dendroctonus terebrans

Hylastes keyed but doubtful - Dendroctonus terebrans

tag · login or register to post comments

Contributed by Derek Robertson on 21 May, 2018 - 10:19am
Last updated 17 July, 2021 - 1:33am

data not provided

… v belov, 6 December, 2020 - 12:46pm

login or register to post comments

Moved

Moved from ID Request.

In most generic keys, Hylastes will divert at the couplet which describes the prothoracic precoxal area and lateral margin. Hylastes (and everything else in that tribe) will have a sharply elevated ridge going from the front edge of the front coxae to the margin of the prothorax.
Here's a good image.

On Dendroctonus that area is slightly elevated, but evenly rounded and doesn't have that sharp ridge. Not many good images to use as an example, but here you can see here there is no ridge.

Hopefully that helps.

… Marc DiGirolomo, 21 May, 2018 - 11:18am

login or register to post comments

Many thanks

Thanks Marc,

Some thoughts were given to D. terebrans but I didn't feel the size matched the samples I have on hand. The description of the ridge as well as the example will serve me in the future. Much appreciated

… Derek Robertson, 21 May, 2018 - 11:44am

login or register to post comments

What's the length?

The only other possibility (with such a dark color) in your area would be D. frontalis, which is in the range of 2.0-3.2mm, while terebrans is 5.0-7.5mm.

… Marc DiGirolomo, 21 May, 2018 - 12:04pm

login or register to post comments

Not Frontalis

There is no declivity in the frons which I think is the mark of frontalis. It has to be terebrans. EDIT: length appx 6mm.

… Derek Robertson, 21 May, 2018 - 12:35pm

login or register to post comments

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Printer Friendly Version

Terms of Use
Privacy Statement
Site Map
Contact