A revision of the Thyropygus allevatus group. Part 1: the T. opinatus subgroup (Diplopoda: Spirostreptida: Harpagophoridae)
Author
Pimvichai, Piyatida
Author
Enghoff, Henrik
Author
Panha, Somsak
text
Zootaxa
2009
2016
17
50
journal article
10.5281/zenodo.185971
1db39382-b4f0-46fa-ae08-dd5e57e0e26b
1175-5326
185971
Thyropygus bearti
n. sp.
(
Figs. 5
,
10
A–D, 18B)
Material:
HOLOTYPE
male
THAILAND
, Suratthani Province, Don Sak district, Khao Sai, 9° 14ˏ 48˝ N, 99° 45ˏ 51˝ E.
27 August 2007
. H. Enghoff and S. Panha leg., (
CUMZ
). –
Paratypes
:
1 female
, same data as
holotype
(
CUMZ
),
1 male
,
1 female
, same data as
holotype
(
ZMUC
).
Etymology:
The species is named after the
Thai
Biodiversity Research and Training Program (
BRT
), in recognition of this agency’s support for our research.
Diagnosis:
A species of the
opinatus
subgroup. Spatulate lobe (
sl
) at the apical part of telopodite rounded, spoon-like. Similar in this respect to
T. inflexus
,
T. chelatus
, and
T. cristagalli
,
T. brachyacanthus
and
T. loxia
. Differs from these species by the apical palette (
pa
) having a longitudinal rounded crest near tip, and by the lateral process of anterior coxal fold (
alp
) being apically abruptly truncate.
Description:
Adult males with 61–62 podous rings, no apodous rings. Length ca.
12–13 cm
, width ca.
7.4 mm
. Adult females with 62–63 podous rings, no apodous rings. Length ca.
12 cm
, width ca.
7.6–7.8 mm
. Overall color of living animal (
Fig. 18
B) brown. Legs and antennae pink, prozona, head, epiproct, paraprocts, and hypoproct brown, metazona pinkish brown.
Gonopods (
Figs. 10
A–D): Anterior coxal fold (
ac
) (
Fig. 10
A): lateral process (
alp
) slightly curved, directed obliquely mesad, apically abruptly truncate; mesal process (
amp
) much shorter than lateral process, directed distad, slightly sigmoid, pointed. Posterior coxal fold (
pc
) (
Fig. 10
B) basally with moderately high paracoxites (
px
), distally with two processes: mesal process (
pmp
) pointed-triangular, directed almost straightly distad; lateral process (
plp
) much shorter, digitiform, directed distad and slightly laterad. Telopodite (
Figs. 10
C–D) leaving coxite between
pmp
and
plp
; femoral spine (
fe
) basally very broad, curving mesad and ending in sharp point; tibial spine (
ti
) long, slender, curving in horizontal plane, its tip
in situ
resting between
pmp
and
amp
; apical part: spatulate lobe (
sl
) basally slender, distally expanded, rounded, spoon-like; a small accessory lobe (
al
) at base of
sl
; and a small slender spine (
ss
) at base of apical part, opposite the origin of
ti
; palette (
pa
) simple, gutter-like, with a longitudinal rounded crest (
cr
) near tip, distally with about thirteen brownish blepharochaetae (
bp
).
Distribution
(
Fig. 20
): Known only from the
type
locality.