Platynus sp. ? - Laemostenus complanatus
Roseville, 38.7227, -121.2993, Elevation = 50m (164'), Placer County, California, USA
December 17, 2016
Size: 13 mm
The discussion
here about Platynus indecentis & decentis relates why I think my specimen leans toward indecentis, and also keys nicely to that genus in Arnett
(1) and species in Liebherr
(2).
There are no specimens of Platynus indecentis in BG to compare with, and there is no decentis species in the 24 yr old key by Liebherr
(2) to separate the two. So I thought it would be interesting to see if this specimen can fill that BG void.
-- Metatarsomere V ventrally setose with
4 on each side pointing down longer than depth of tarsomere.
-- Metafemur with 3-20 setae on
dorsoapical surface.
-- Discal setae absent except on edge.
-- Elytral
Apical lateral setae.
-- 2
supraorbital setae.
-- 2 pronotal setae (
best seen here faintly on right side).
-- Mentum with
median tooth.
-- Head constricted behind the eyes.
-- Neck with
transverse impression on dorsum of neck.
-- Hind
tarsi without dorsal furrow.
-- Simple tarsal claws.
Contributed by
Glen Forister on 20 January, 2020 - 11:14am
Last updated 20 January, 2020 - 10:41pm