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subgenus Myothorax (Carpophilus subgenus Myothorax)
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Carpophilus nepos
Photo#488231
Copyright © 2011
Brad Barnd
Carpophilus 04 -
Carpophilus nepos
Hancock County, Indiana, USA
September 9, 2010
Size: 2.25 mm
Another
Carpophilus
found on and under watermelon rinds.
A light colored
C. discoideus
?
Contributed by
Brad Barnd
on 1 February, 2011 - 11:20pm
Last updated 21 December, 2021 - 11:20am
Moved
Moved from
Cornsap Beetle
.
…
Brad Barnd
, 2 February, 2011 - 6:56pm
Moved
Moved from
Carpophilus
.
…
Brad Barnd
, 2 February, 2011 - 2:17pm
try freemani, too -- although discoideus is a good call, too
can't tell from the pic. -- not enough resolution
…
v belov
, 2 February, 2011 - 10:58am
I ran it through the Parsons key again...
I end up with dimidiatus. Fits the description very well and also matches the images linked to on the info page. Plus these were collected on the edge of a cornfield, so... :)
…
Brad Barnd
, 2 February, 2011 - 2:19pm
caveat
Parsons treated
mutilatus
as synonymous; now both are considered spp. in good standing, and i don't know the formal characters... ah! for what it's worth, summarizing the relevant key couplets from
(
1
)
[if i interpret the Russian correctly!]:
...
Antennomere 2 much shorter than 3. Hypomeron coarsely and densely punctate all over, with surface between punctures smooth and shiny. =>
dimidiatus
Antennomeres 2 & 3 subequal. Hypomeron impunctate but coarsely granulate, w/surface microreticulate between granules =>
mutilatus
+ several other spp.
…
v belov
, 2 February, 2011 - 5:01pm
well
Under closer inspection, the hypomeron is granulate. I don't see a swelling on the hind femora that would indicate C. fumatus. The elytral punctures appear longitudinally divided, so I suspect C. freemani.
…
Brad Barnd
, 2 February, 2011 - 6:06pm
nice to see my intuinitial guess vindicated...
...although i would definitely choose a new sp for the guide anytime ))
…
v belov
, 2 February, 2011 - 8:19pm
great
must alert Beatriz -- another cosmo alien
…
v belov
, 2 February, 2011 - 2:36pm