Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Register
·
Log In
Home
Guide
ID Request
Recent
Frass
Forums
Donate
Help
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
Taxonomy
Browse
Info
Images
Links
Books
Data
Home
» Guide »
Arthropods (Arthropoda)
»
Hexapods (Hexapoda)
»
Insects (Insecta)
»
Beetles (Coleoptera)
»
Polyphaga
»
Series Cucujiformia
»
Curculionoidea
»
Snout and Bark Beetles (Curculionidae)
»
Bark and Ambrosia Beetles (Scolytinae)
»
Ipini
»
Pseudips
»
Pseudips concinnus
Photo#1368056
Copyright © 2017
Alice Abela
Ips sp.? -
Pseudips concinnus
Santa Barbara County, California, USA
April 10, 2017
Size: ~5mm
Found floating in a vernal pool in burned Monterey pine habitat
Images of this individual:
tag all
tag
·
login
or
register
to post comments
Contributed by
Alice Abela
on 12 May, 2017 - 11:15pm
Last updated 13 May, 2017 - 6:29am
ID P. mexicanus?
It was brought to my attention on inaturalist that P. mexicanus may be the better fit.
Looking at the images on Bugguide I'm having a tough time seeing a difference in the pinned specimens from each species. Bright Jr, D. E., & Stark, R. W. (1973) The bark and ambrosia beetles of California (Coleoptera: Scolytidae and Platypodidae) gives:
"Caudal half of pronotum finely, densely punctured, diameter of each puncture 0.03 mm or less, caudal margin of each puncture raised giving the surface a granulate appearance" = P cocinnus
vs
"Caudal half of pronotum sparsely punctured, diameter of each puncture 0.04 mm or more; surface not granulate, at least on caudal fourth of disk" = P. mexicanus
as the key break between to two. Mine seems to be more densely and coarsely punctured than either of the pinned beetles on Bugguide.
The antennal club sutures do look to be arcuate, which gets me to the key break between P. cocinnus and P. mexicanus; although the pronotal punctures are dense they do seem to be bigger than those on P. cocinnus and the location and host association (likely Pinus radiata) fit better with P. mexicanus.
…
Alice Abela
, 21 December, 2019 - 8:03pm
login
or
register
to post comments
Moved tentatively
Moved from
Beetles
.
…
v belov
, 13 May, 2017 - 6:29am
login
or
register
to post comments
Comment viewing options
Flat list - collapsed
Flat list - expanded
Threaded list - collapsed
Threaded list - expanded
Date - newest first
Date - oldest first
10 comments per page
30 comments per page
50 comments per page
70 comments per page
90 comments per page
Select your preferred way to display the comments and click 'Save settings' to activate your changes.