A Review Of Taiwanese Paramisolampidius (Coleoptera, Tenebrionidae: Cnodalonini)
Author
Merkl, O.
and M, K. & Hungarian Natural History Museum, H- 1088 Budapest, Baross utca 13, Hungary E-mail: merkl @ zoo. zoo. nhmus. hu
Author
Masumoto, K.
Institute of Human Living Sciences, Otsuma Women’s University Sanbancho 12, Chiyoda-ku, Tokyo, 102 - 8357 Japan. E-mail: masumoto @ otsuma. ac. jp
text
Acta Zoologica Academiae Scientiarum Hungaricae
2008
2007-12-14
54
1
1
11
journal article
105939
10.5281/zenodo.5731866
5fea0301-46f2-458c-aafd-50f38d42d3b2
2064-2474
5731866
Paramisolampidius csorbai
sp. n.
(
Figs 2
,
7
,
12
)
Type material
–
Holotype
, male, “
Taiwan
,
Nantou
Pr., / Hohuanshan Exp. Stat., / 24.09’ N, 121.17’ E”, “from bark at night /
3100 m
,
27. IX. 1999
/ G.
CSORBA
& B. HERCZIG”. It is deposited in the
HNHM
.
Description
– General: body elongate, constricted between fore and hind bodies gently convex, glabrous; colour piceous, apical half of antennae paler in colour, meso- and metasterna, tibiae and claws dark brown, hairs on ventral surface of tibiae pale golden; dorsal surface moderately shining, slightly sericeous (
Fig. 2
). Body length
13 mm
.
Head: gently convex in posterior part, gradually inclined anteriorly, surface with microscopic isodiametrical reticulation and small punctures; basal membrane of labrum exposed. Clypeus transversely elliptical, anterior edge straight. Fronto-clypeal suture complete, rounded and sulcate. Genae weakly swollen, subparallel-sided before eyes, then rounded and meeting edge of clypeus at an angle of about 170°. Eyes obliquely ovate, rounded inwardly, medium-sized for a
Paramisolampidius
, separated by distance equal to 3 eye widths. Inner margins of eyes sulcate from behind to middle of the eye (
Fig. 7
), width of ocular sulcus about 1/4 times the width of transverse diameter of an eye. Antennae slightly clavate, reaching base of pronotum, terminal segment tear-shaped, segment length ratios from base to apex as follows: 2.7, 1.0 (shortest segment), 2.6, 1.9, 1.6, 1.6, 1.5, 1.5, 1.4, 1.3, 2.6. Mentum with strong anteromedian convexity, with elevated longitudinal keel.
Prothorax: barrel-shaped, barely longer than wide, widest immediately before middle; apex a little wider than base; sides gently and evenly rounded; anterior edge finely margined except along major part of middle; base nearly straight, feebly sinuous in lateral parts, strongly margined in major part of middle; pronotal carina absent; anterior angles rounded, not prominent, posterior angles truncate; pronotal disc gently convex, surface with microscopic isodiametrical reticulation and widely scattered very small punctures and with a shallow mid-longitudinal impression; the coarsest punctures are along midline. Hypomeron with a few scattered punctures. Prosternum with very few small punctures and obsolete wrinkles; prosternal process shallowly bifurcate.
Pterothorax: scutellum equilaterally triangular, weakly raised in middle, microscopically sculptured, irregularly punctate laterally. Elytra oblong elliptical, gently convex, highest at the middle, 1.8 times as long as wide, 2.86 times the length and 1.49 times the width of pronotum, widest at the middle; surface with microscopic isodiametrical reticulation, punctato-striate, striae shallow with punctures small, widely and rather irregularly set; intervals feebly convex, with scattered very small punctures and sparse, transverse wrinkles; humeri reduced; apices rounded; epipleuron narrow, ending just before apex, epipleural carina weak, not visible from above. Mesoventrite sparsely punctate. Mesepisternum, mesepimeron and metepisternum impunctate. Metaventrite impunctate, with Y-shaped discrimen.
Legs: long, femora strongly clavate, thickened in middle, with basal parts thin, finely and sparsely punctate; protrochanter angulate distally; protibia gently curved; pro- and mesotibia with a small denticle just before apex of ventral surface; metatibia weakly bent backwards; length ratios of protarsomeres: 1.9, 1.3, 1.0 (shortest segment), 1.2, 3.6; mesotarsomeres: 2.2, 1.5, 1.3, 1.2, 3.8; metatarsomeres: 3.9, 1.7, 1.5, 4.3.
Abdomen: intercoxal process of first ventrite twice as wide as long; ventrites sparsely and finely punctate; last ventrite rounded at apex. Aedeagus subfusiform,
2.05 mm
in length,
0.45 mm
in width, gently curved in lateral view; the very apex broken in the
holotype
(
Fig. 12
).
Diagnosis
– This new species can be easily distinguished from other species described from
Taiwan
by its elongate and slender body with very finely punctate dorsal surface and incomplete ocular sulcus. See also the subsequent key to the Taiwanese species of the genus
Paramisolampidius
.
Figs 2–6.
Habitus of
Paramisolampidius
species
: 2 =
P. csorbai
sp. n.
, 3 =
P. formosanus
MASUMOTO, 1981
, 4 =
P. kinugasai
MASUMOTO, 1984
, 5 =
P. shirozui
(M. T.
CHÛJÔ, 1967
)
, 6 = P.
tenghsiensis
MASUMOTO, 1984
Figs 7–11.
Head of
Paramisolampidius
species
: 7 =
P. csorbai
sp. n.
, 8 =
P. formosanus
MASU- MOTO, 1981, 9 =
P. kinugasai
MASUMOTO, 1984
, 10 =
P. shirozui
(M. T.
CHÛJÔ, 1967
)
, 11 = P.
tenghsiensis
MASUMOTO, 1984
Distribution
– Only the
holotype
is known, which is from Hohuanshan in
Nantou county
. The locality falls into the area of
P. shirozui
. Although
one specimen
does not allow drawing conclusions about the niche segregation of these two species, it is probable that
P. csorbai
and
P. shirozui
are separated by the altitude, with
P. csorbai
in
Tsuga-Picea
and
Abies
(upper montane and subalpine) zones and
P. shirozui
in
Machilus-Castanopsis
and
Quercus
(submontane and montane) zones, including the montane mixed coniferous forests.
Biology
– The specimen was collected from the bark of dead trees at night using a torch – a simple but highly effective method of collecting nocturnal saproxylic and mycetophagous tenebrionid beetles.
Etymology
– This new species is dedicated to Dr. GÁBOR CSORBA (Curator of Mammals, Hungarian Natural History Museum,
Budapest
), one of the collectors of the
holotype
. In spite of his different profession, he is an enthusiastic and productive insect collector who brought back valuable materials from his numerous trips to Southeast Asia.