The neotropical genus Glyptoma ERICHSON, 1839 with descriptions of new species and a key to the species (Coleoptera: Staphylinidae: Osoriinae)
Author
Irmler, Ulrich
text
Beiträge Zur Entomologie = Contributions to Entomology
2015
2015-12-21
65
2
297
325
https://www.contributions-to-entomology.org/article/view/1885
journal article
10.21248/contrib.entomol.65.2.297-325
0005-805X
4753971
6E48386B-4B75-4ADF-8667-042F92582386
Glyptoma laeviceps
SHARP, 1887
(
Figs 2A, B
,
20A
)
Glyptoma laeviceps
SHARP, 1887: 723
Type material examined
:
Lectotype
: male;
Panama
:
Volcan
de
Chiriqui
,
2000 - 4000 ft
elev. (
82°38'W
,
8°46'N
), under bark saturated with sap, leg.
Champion
(
BMNH
).
According
to
SHARP (1887)
two type
specimens exist. I saw
one male
that is here designated as
lectotype
.
Further material
:
Costa Rica
:
Prov.
Cartago
,
2 males
,
Par. Nat. Tapanti
, cloud forest litter (dry)
1650 m
elev. (
83°46'W
,
9°43'N
),
18.02.1998
, leg.
R. Anderson
(
KNHM
)
;
2 males
,
2 females
,
Tuis
,
2 km
NE Rancho Naturalista
(
83°33'W
,
9°49'N
),
2501 ft
elev., 15.–
16.06.1995
, leg.
B. Ratcliffe
,
M. Jameson
(
KNHM
,
UIC
)
;
Prov.
Puntarenas
,
1 female
,
Las Alturas Stanford Biolog. Sta.
, ca.
29 km
NE San Vito
, under bark,
1500 m
elev.,
25.05.1993
, leg.
J. S. Ashe
(
KNHM
)
;
1 male
,
1 female
, same region,
2 km
NE
Est. Biol. Alturas
, upper montane/cloud forest trans. (
82°50.01'W
,
8°56.56'N
), litter,
1520 m
elev.
10.07.1999
, leg.
R. Anderson
(
KNHM
)
;
4 males
,
2 females
,
Las Cruces
,
11 km
SW Estacion Biologico Las Cruces
(
83°01.5'W
,
8°46.43'N
), wet cloud forest litter,
1450 m
elev.,
9.07.1999
, leg.
R. Anderson
(
KNHM
,
UIC
)
;
1 male
,
4 females
, same region (
82°57.58'W
,
8°47.14'N
), fungus covered logs,
1330 m
elev.,
29.05.2004
, leg.
J.S.Ashe
,
Z. Falin
,
I. Hinojosa
(
KNHM
)
;
5 males
,
2 females
,
Monteverde
,
1570 m
elev., collected by
Berlese
,
16.05.1989
, leg.
J. S. Ashe
,
R. Brooks
,
R. Leschen
(
KNHM
,
SDEI
,
UIC
)
;
1 male
, same region,
Estacion
Biologica (
84°47.49'W
,
10°18.53'N
), montane forest litter,
1600 m
elev.,
14.06.2001
, leg.
R. Anderson
;
1 male
, same region (
84°49.08'W
,
19°19.4'N
), montane forest litter,
1540 m
elev.,
15.05.2001
, leg.
R. Anderson
(
KNHM
)
;
1 female
,
Corcovado National Park
,
Sirena Stn.
lower Ollas Trail
(
83°35.22'W
,
8°24.48'N
), under bark,
5 m
elev.,
25.06.2000
, leg.
Z. H. Falin
(
KNHM
)
;
3 males
,
1 female
,
San Vito
,
35 km
NE, nr.
Las Alturas
,
Rio Bella Vista
,
Rd
to
Gravel Pit
, dry leaf litter near river,
4300 ft
elev.,
22.03.1991
,
23.03.1991
, leg.
L. Herman
(
AMNH
)
;
2 females
, same region,
4 km
S
San Vito Biol Stat. Las
Cruzes (
82°57.36'W
,
8°47.3'N
), leaf litter,
110 m
elev., collected by
Berlese
,
19.06.1998
, leg.
R. Anderson
(
KNHM
)
;
8 males
,
12 females
, same region,
5 km
SW S.
Vito
(
82°59.13'W
,
8°47.13'N
), leaf litter, collected by
Berlese
,
22.06.1998
, leg.
R. Anderson
(
KNHM
,
UIC
)
;
1 female
,
Las Cruces
,
4000 ft
elev.,
01.08.1976
,
C. & C. Goodnight
(
AMNH
)
;
1 specimen
,
Tapanti
(
83°47'W
,
9°42'N
),
9.09.1939
, leg.
A. Bierig
(
FMNH
)
;
Prov.
Alajuela
,
1 female
,
Peñas Blancas
, under bark,
930 m
elev.,
20.05.1989
, leg.
J. S. Ashe
,
R. Brooks
,
R. Leschen
(
KNHM
)
;
Prov.
Heredia
,
2 females
,
1 male
,
Puerto Viejo
,
Selva Biol. Stat.
nr
P. V. de Sarapiqui
,
18.02.1985
, leg.
L. Herman
(
AMNH
)
;
Panama
:
1 female
,
Capira
,
Cerro
Campana (
79°57'W
,
8°44'N
), forest litter,
950 m
elev., collected by
Berlese
,
5.06.1995
, leg.
R. Anderson
(
KNHM
)
;
2 females
,
Darién
,
Cana Biol. Stat.
,
Serrania
de Pirre
(
77°41.6'W
,
7°45.18'N
),
975 m
elev.,
4.06.1996
, leg.
A.R. Gillogly
(
KNHM
)
;
Prov.
Chiriqui
,
2 males
,
El Hato del Volcan
, NW
Volcán
(
82°40.26'W
,
8°49.16'N
), litter near stream,
1410 m
elev.,
17.05.2001
&
24.12.2001
, leg.
L. Herman
(
AMNH
)
;
1 male
,
1 female
, same region,
27.7 km
W
Hartmann's Finca
(
82°44.48'W
,
8°52.41'N
), under bark,
1580 m
elev.,
17.06.1996
, leg.
J. S. Ashe
&
R. Brooks
(
KNHM
)
;
1 male
,
1 female
, same region (
82°44.36'W
,
8°51.48'N
), forest litter, collected by
Berlese
,
1450 m
elev.,
14.06.1995
, leg.
R. Anderson
(
KNHM
,
UIC
)
;
1 female
, La
Fortuna
,
La Reserva
,
3 km
W Fortuna Hwy
on continental divide trail (
82°12'W
,
8°46'N
),
1000 m
elev.,
8.08.1995
, leg.
A.R. Gillogly
(
KNHM
)
;
1 male
,
1 female
, same region,
Hydro Trail
(
82°14'W
,
8°42'N
), fungusy log,
1150 m
elev.,
9.06.1995
and 23.05.–
9.06.1995
collected by flight intercept trap
, leg.
J. S. Ashe
&
R. Brooks
(
KNHM
)
;
1 female
,
Los Nubes
,
6.7 km
N Cerro Punta
, P.N.
Armistad
(
82°34'W
,
8°22'N
), forest litter,
2150 m
elev., collected by
Berlese
,
15.06.1995
, leg.
R. Anderson
(
KNHM
)
.
Diagnosis
: The species can be easily identified by the shiny head among the similarly sized species. In contrast to
G. cicatricosa
MOTSCHULSKY 1857
and
G. rossii
spec. nov.
, the head of
G. laeviceps
SHARP, 1887
is polished and without micro-striae.
Description
: Length:
3.5–3.9 mm
. Colouration: black, legs dark yellow, antennae dark brown.
Head:
0.45 mm
long,
0.59 mm
wide; eyes large and prominent; as long as temples; temples convergent to neck in convex curve; sides in front of eyes parallel; parallel part as long as eyes; then deeply sinuate to narrow clypeus; width of clypeus one third as wide as width of head; with swelling at base of antennae; punctation extremely sparse; only with few scattered small punctures; on average, interstices between punctures four to six times as wide as diameter of punctures; few punctures on vertex larger than others; without microsculpture; surface polished.
Antennae nearly as long as head, pronotum and elytra combined, first antennomere thick and rectangular; second only half as long as first and distinctly smaller; third approximately quadrate; following antennomeres approximately as wide as third and longer than wide; penultimate antennomere slightly thicker and again approximately quadrate; last antennomere slightly longer than penultimate; all antennomeres with long setae; setae slightly longer than width of antennomeres; surface of antennomeres matt.
Pronotum:
0.71 mm
long,
0.74 mm
wide; approximately globular; slightly pear-shaped; sinuate in front of posterior angles, but angles indistinct and rounded; posterior edge not wider than mesonotum; without lateral margin; punctation irregular; punctures extremely large and cori- aceous; three punctures in anterior half on both sides of midline more deeply impressed than laterally; deep furrow along midline more deeply impressed in anterior half than in posterior half; surface of midline and of punctures with deep isodiametric microsculpture, matt; interstices between punctures with weaker microsculpture and more shiny.
Elytra:
0.98 mm
long,
0.98 mm
wide; sides smoothly curved; widest at middle; shoulders shortly denticulate; disc with two carinae on each side of suture; one in middle between suture and lateral margin; one from shoulders to posterior angles; on inner side of discal carina three indistinct irregular rows of large punctures; on each side of suture indistinct furrow without punctures; on outer side of discal carina and inner side of lateral carina with irregular row of smaller punctures; between these rows wider space without punctures; space between carinae inclusively surface of punctures with deep isodiametric microsculpture; in some parts microsculpture longitudinally reticulate; surface matt.
Abdomen at segments III to V with deep transverse groove formed by deep large punctures; posterior half of segments impunctate; surface shiny; segments VI to VIII without transverse row of large and deep punctures and surface totally shiny; only with pair of short yellow setae on both sides of midline.
Aedeagus forming nearly rectangular angle between basal and apical lobe; apical lobe long and approximately straight; acute short apex more strongly curved and pointing ventrally; inner edge of apical lobe indistinctly undulate; wider in middle than at base; with numerous sensillae in middle; thin paramere long; reaching apical third of apical lobe; in middle with undulate structure.