The millipede family Polydesmidae in the Caucasus (Diplopoda: Polydesmida)
Author
Golovatch, Sergei
Author
Evsyukov, Aleksandr
Author
Reip, Hans
text
Zootaxa
2016
2016-03-01
4085
1
1
51
journal article
31448
10.11646/zootaxa.4085.1.1
429cf011-ec4c-4a61-b894-2bd32b2ffc9b
1175-5326
1052381
7F819439-FD77-4EF2-8E26-7B46F9B5FAAB
Brachydesmus
(
Haplobrachidesmus
)
simplex
sp. n.
Fig. 29
, Map 3
Material examined. Holotype
male (ZMUM p3037),
ABKHAZIA,
Gagra Distr., Lake Ritsa,
950
–
1100 m
a.s.l.,
Fagus
,
Abies
,
Picea
,
Acer
etc. forest, litter, under bark and stones,
13
–
14.VIII.1986
, leg. S. Golovatch.
Paratypes:
5 males (ZMUM p3038), same data, together with holotype; 1 male, 6 females (ZMUM p3039), Myussera Nature Reserve,
20
–
130 m
a.s.l.,
Castanea
,
Alnus
etc. forest,
8
–
10.IV.1983
, leg. S. Golovatch; 3 males (MIZW), 1 male (ZMUM p3040),
RUSSIA,
Krasnodar Prov., Sochi, open
Carpinus
and
Quercus
forest, loam,
7.XII.1963
; 1 male (MIZW), same locality, dendrarium and city park, under stones,
9.XII.1963
, all leg. P. Pisarski.
Diagnosis.
See Diagnosis of
B. kvavadzei
sp. n.
, as well as Key below.
Name.
To emphasize the particularly simple gonopod exomere.
Description.
Length
6
–
7.5 mm
, width of midbody metazonae 0.8
–
1.0 mm (male, female), metazonite to prozonite width ratio ca 1.5
–
1.6 (
Fig. 29A
). Coloration uniformly pallid to light yellow.
All characters as in
B. assimilis
(
Fig. 29A
), except as follows. In width, collum <2 <3 <head = 4 <5. Paraterga well-developed, their fore margins nearly straight, while anterolateral corners clearly angular; caudolateral corner mostly acute-angled and dentiform starting with segment 5, subspiniform and drawn behind rear tergal margin starting with segment 15 (
Fig. 29A
). Tergal setae mostly very short and subclavate. Metatergal sculpture indistinct, but at least middle and caudal rows of flat small tubercles visible. Male legs clearly incrassate compared to female, but male prefemora not bulging laterad; sphaerotrichomes absent (
Fig. 29B
). Gonopod (
Fig. 29C
–
29G
) bipartite, stout, exomere with only a single, small, apical tooth (
e
).