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
Holotrochus pseudoleticiae
sp. nov.
(
Figs 15
,
19B
)
Type
locality.
Peru
,
Departamento
Loreto
,
San Jacinto
.
Type material.
HOLOTYPE
:,
Peru
, Dept.
Loreto
,
Campamento San Jacinto
(
75°51.77’W
,
2°18.75’S
),
175–215 m
, flower fall berlese,
2. July 1993
, leg.
R. Leschen
(
KSEM
)
.
PARATYPE
:,
Peru
, Dept.
Loreto
,
Campamento San Jacinto
(
75°51.77’W
,
2°18.75’S
),
175–215 m
, rainforest berlese,
6. July 1993
, leg.
R. Leschen
(
UIC
)
.
Diagnosis.
This species belongs to the
H. syntheticus
group due to the pubescent abdomen. It resembles
H. leticiae
Irmler, 1987
by the large prominent eyes and the clavate antennae.
H. pseudoleticiae
sp. nov.
is distinctly larger than
H. leticiae
. The parameres of
H. leticiae
are straight; whereas they are sinuate in
H. pseudoleticiae
sp. nov.
The endophallus of both species is tube-like and nearly without coils.
Description.
Length:
3.8 mm
. Colouration black; very narrow posterior margin of pronotum lighter brown; legs and antennae yellow.
Head
0.51 mm
long,
0.85 mm
wide; eyes very large and prominent; at least two times longer than temples; fore-head semicircular; punctation fine and sparse; on average, interstices between punctures at least two times as wide as diameter of punctures; few setiferous punctures on clypeus; four setiferous punctures on vertex placed in quadrate; few setiferous punctures on supraocular area; remains of isodiametric microsculpture; surface polished and shiny.
Antennae as long as head and half of pronotum combined; second antennomere oblong and slightly shorter than conical third; following antennomeres extremely increasing in width and covered by numerous short and long setae; apical antennomere 2.5 times wider than fourth; fourth antennomere quadrate; nearly two times as wide as long.
Pronotum
0.55 mm
long,
0.91 mm
wide; widest in middle; slightly and evenly narrowed to posterior angles; more strongly narrowed in smooth curve to anterior angles; posterior angles nearly rectangular; lateral margin distinct; in dorsal aspect, visible throughout its total length; combined with anterior margin; punctation moderately sparse and deep; punctures of different size; on average, interstices between punctures at least two times as wide as diameter of punctures; along anterior margin with row of setiferous punctures; another longitudinal row of setiferous punctures in lateral margin; close to posterior angles a further setiferous puncture; distance between posterior angle and setiferous puncture at least two times of diameter of puncture; between normal punctures with sparse micro-punctation; without microsculpture; surface polished and shiny.
Elytra
0.91 mm
long, 1.00 mm wide; with distinct rectangular shoulders, marked by short prominent teeth; widest shortly behind middle; punctation deeper, but not denser than on pronotum; few setiferous punctures on disc and longitudinal row of setiferous punctures in lateral margin; weak coriaceous ground sculpture.
Aedeagus with long apical lobe; placed in rectangular angle to basal lobe; apex with short tooth; tube like endophallus with indistinct torsions; sinuate parameres as long as apical lobe.
Etymology.
The specific name is derived from the close resemblance to
H. leticiae
and means similar as
H. leticiae
.
Distribution.
Known only from the
type
locality.