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 bispinispatula
n. sp.
(
Figs. 11
A–D, 18C)
Material:
HOLOTYPE
male
THAILAND
, Chumphon Province, Lang Suan district, Khao Krieab Temple, 9° 49ˏ 4˝ N, 99° 2ˏ 17˝ E.
11 October 2008
. P. Prasankok and members of Animal Systematics Research Unit leg., (
CUMZ
). –
Paratypes
:
2 females
and
3 juveniles
, same data as
holotype
(
CUMZ
).
Etymology:
The species epithet is a Latin noun in apposition and refers to the spinose spatulate lobe of the gonopod telopodite.
FIGURE 11.
Thyropygus bispinispatula
, holotype, gonopods. A: anterior view, left telopodite removed. B: posterior view, left telopodite removed. C: left telopodite, anterior view. D: left telopodite, posterior view.
Diagnosis:
A species of the
opinatus
subgroup. Differing from all other species in the subgroup by having the spatulate lobe (
sl
) at the apical part of telopodite terminating in two sharp brown spines.
Description:
Adult males with 67 podous rings, no apodous rings. Length ca.
12 cm
, width ca.
7.4 mm
. Adult females with 64 podous rings, no apodous rings. Length ca.
13–16 cm
, width ca.
7.6–9.3 mm
. Overall color of living animal (
Fig. 18
C) yellowish brown. Legs and antennae brownish orange. Paraprocts dark brown.
Gonopods (
Figs. 11
A–D): Anterior coxal fold (
ac
) (
Fig. 11
A): lateral process (
alp
) slender, slightly curved mesad; mesal process (
amp
) almost as long as
alp
, straight, flattened, parallel-sided, directed straight distad. Posterior coxal fold (
pc
) (
Fig. 11
B) basally with moderately high lateral paracoxites (
px
), distally with two processes: mesal process (
pmp
) slightly shorter than
plp
, and curving behind
plp
; lateral process (
plp
) a rounded lobe, curving caudad. Telopodite (
Figs. 11
C–D) leaving coxite between
pmp
and
plp
; Femoral spine (
fe
) very long, directed obliquely distad, crenulated along inner curvature,
in situ
resting against posterior surface of
amp
; telopodite distally to
fe
with a vertical, smooth lobe (
lo
) projecting distolaterad; tibial spine (
ti
) very long, curving in horizontal plane close to the middle part of
fe
; spatulate lobe (
sl
) terminating in two sharp brown spines, the outer spine slightly smaller and shorter than the inner one; palette (
pa
) simple, gutterlike, distally with about seven brownish blepharochaetae (
bp
).
Distribution
(
Fig. 20
): Known only from the
type
locality.