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Photo#364785
Black Turpentine Beetle - Dendroctonus terebrans

Black Turpentine Beetle - Dendroctonus terebrans
Marlton, Burlington County, New Jersey, USA
August 11, 2009
Size: Maybe around 6 mm?
Came to the light at night. I have "IDed" this one about 8 times so far, came up with 6 different "IDs", and none of them looked very much like the bug. Today I have a guess (which may be wrong) but I'm not afraid to give it a try.

My ANCIENT(1909) book of NJ species lists rufipennis, terebrans, and valens. Of those it seems to match Dendroctonus terebrans (Black Turpentine Beetle) the best.

Images of this individual: tag all
Black Turpentine Beetle - Dendroctonus terebrans Black Turpentine Beetle - Dendroctonus terebrans Uropodidae

Dendroctonus terebrans
This is a nice series of Dendroctonus terebrans. The little red hitchikers are phoretic uropodid mites which can be very abundant on bark beetles.

As for the "knobs" on the tibia in the photo, the shape of the protibia can be diagnostic at the genus level. On my site I just have anterior and posterior views of the protibia for "general purposes".

 
Thanks
I appreciate the info and the help with the mites!

Moved
Moved from Dendroctonus.

Moved

Moved
Moved from Beetles. pretty sure to here

 
genus is fine
try also(1)(2)

 
Images
I wish I knew if some of the images are supposed to be diagnostic, or are they just great pix they happen to have! Like these two "knobs"...
http://www.barkbeetles.info/beetle_pix.php?gallery=Scolytinae/Hylesinini/Tomicina&image=2103_dendroctonus_terebrans_metatibia.jpg

 
must be there for a reason
i would assume, diagnostic

 
Now to figure out which is diagnostic
their presence or their shape. It is always fun.

 
terebrans, i'm sure
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