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Apteromechus
Photo#289667
Copyright © 2009
Mike Quinn
Apteromechus
Cameron County, Texas, USA
June 6, 2009
Det. E. G. Riley, 2009
spmn in the TAMUIC
Contributed by
Mike Quinn
on 16 June, 2009 - 11:35pm
Last updated 13 February, 2017 - 12:54pm
Apteromechus likely new species
This is what I think is a new Apteromechus. Its not A. texanus or any of the others from the USA.
…
Robert Anderson
, 5 September, 2023 - 8:40am
Comment from Ed Riley
.
I have the specimen shot by Mike Quinn to produce this image, and I wish to provide the following comments on its identity.
This is a special weevil from extreme southern Texas that, as of yet, is not identified to species though certainly a member of the cryptorhynchine genus
Apteromechus
. It has the following important characters: anterior femur flattened and glabrous below for partial reception of the retracted tibia/tarsus, mesocoxae separated by space as wide as apex of rostrum, comb at apex of hind femur “broken” as described and illustrated for the genus
Apteromechus
by Kissinger (1964), and ventrites 3 and 4 with a single transverse row of punctures.
The specimen imaged is not
A. texanus
Fall, and differs from that species as follows: the obvious difference in coloration of elytra, i. e., posterior third densely covered with much lighter-colored scales (the coloration of
A. texanus
is very much like that of
A. ferratus
); all elytral intervals equally and weakly raised (alternate intervals are strongly raised in
A. texanus
), comb at apex of hind femur is “broken” (in
A. texanus
it is composed of a single un-broken row of setae as noted for some
Apteromechus
species by Whitehead (1979)), and ventrites 3 and 4 with a single (not double) transverse row of punctures.
Kissinger, D. G. 1964. Curculionidae of America north of Mexico: a key to the genera. South Lancaster, MA. Taxonomic Publications. v + 1-143 pp.
Whitehead, D. R. 1979. Notes on
Apteromechus
Faust of America north of Mexico (Coleoptera: Curculionidae: Cryptorhynchinae). Proceedings of the Biological Society of Washington 81(2): 230-233.
Edward G. Riley
Associate Curator
Department of Entomology
Texas A&M University
College Station, TEXAS 77843-2475
(979) 845-9711
egrchryso@tamu.edu
.
…
Mike Quinn
, 18 August, 2009 - 5:30pm
Moved
Moved from
Cryptorhynchinae
.
…
v belov
, 21 June, 2009 - 1:21am
attempting to use this info
and was wondering if the broken comb was supposed to be listed as on the hind tibia? I cannot find the Kissinger paper...
…
Guy A. Hanley
, 28 December, 2021 - 7:06pm
ID
Apteromechus texanus Fall close tobut not ferratus Say
…
Charles W. O'Brien
, 21 June, 2009 - 12:01am