New species of the genus Mimogonia and Holotrochus from South America (Coleoptera: Staphylindae: Osoriinae)
Author
Irmler, Ulrich
text
Acta Entomologica Musei Nationalis Pragae
2013
2013-07-15
53
1
155
176
journal article
24929
10.5281/zenodo.3532762
db23a775-d25c-4253-abda-b5a007110f6d
0374-1036
3532762
AEE33AD8-A165-4418-B42E-9831EA69876E
Mimogonia duckei
sp. nov.
(
Figs 3
,
16C
)
Type
locality.
Brazil
,
Estado Amazonas
,
Manaus
.
Type material.
HOLOTYPE
:, ‘
Brazil
,
Amazonas
,
Reserva Ducke
,
26 km
NE of Manaus
,
flight intercept trap
,
1995–1996
, #
2003-84
(
BMNH
)
.
PARATYPES
:
2♀♀
, with same data as holotype (
BMNH
)
.
Diagnosis.
This species can be identified by the large coarse setiferous punctation of the fore-body and the extremely wide elytra. According to the large prominent eyes, and a head/ pronotum width ratio of 0.94, it resembles
M. adisi
Irmler, 2007a
and
M. paraensis
Irmler, 2010
. However, the elytra of
M. adisi
are longer than wide and in
M. paraensis
they are quadrate, whereas they are distinctly wider than long in
M. duckei
sp. nov.
Description.
Length:
2.4 mm
. Colouration dark brown; legs and antennae light brown.
Head
0.19 mm
long,
0.46 mm
wide; eyes large and distinctly prominent; temples extremely short; shape of fore-head semi-circular; setiferous punctation coarse and dense; interstices less than half as wide as diameter of punctures; moderately wide midline impunctate; close to neck between setiferous punctation with additional micro-punctation; remains of weak isodiametric microsculpture; surface moderately shiny.
Antennae longer than head and pronotum combined; second antennomere oval; as long as conical third; following antennomeres slightly increasing in width; fourth antennomere quadrate; tenth only slightly wider than long.
Pronotum
0.37 mm
long,
0.49 mm
wide; widest shortly behind middle; slightly narrowed in smooth curve to anterior obtuse angles; setiferous punctation coarse, partly coriaceous; punctures still larger than on head; on average, interstices between punctures one fourth as wide as diameter of punctures; remains of weak irregular microsculpture; wide midline without punctures and microsculpture except closely behind anterior edge; surface moderately shiny.
Elytra
0.58 mm
long,
0.63 mm
wide; coriaceously and densely punctate; on average, interstices between setiferous punctures less than half of diameter of punctures; remains of weak irregular microsculpture; surface moderately shiny.
Abdomen densely punctate, but setiferous punctures much finer than on fore-body; isodiametric microsculpture distinct.
Mesotibia of male with row of spines at apical outer edge; in apical third, inner edge transversely narrowed to apex and with several long and undulate setae.
Aedeagus with short hook-like curved apical lobe; apical lobe laterally with striate structure; endophallus thin, but coiled many times.
Etymology.
This species is named in honour of the famous Brazilian Naturalist Adolpho Ducke, whose name was adopted as the name of the location (i.e. Reserva Ducke) where this new species was collected.
Distribution.
Known only from the
type
locality