Revision of the Ephippiochthonius complex in the Iberian Peninsula, Balearic Islands and Macaronesia, with proposed changes to the status of the Chthonius subgenera (Pseudoscorpiones, Chthoniidae)
Author
Zaragoza, Juan A.
text
Zootaxa
2017
4246
1
1
221
journal article
36212
10.5281/zenodo.437611
3ff74501-6241-43b2-a52f-0e7580bb2f45
1175-5326
437611
D8594E96-D561-4A37-9073-B138EC7E95A7
Occidenchthonius torremarinae
(
Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2012
)
,
n. comb.
Chthonius
(
Ephippiochthonius
)
torremarinae
Carabajal Márquez, García Carrillo & Rodríguez Fernández 2012
: 92
, 94, 95, figs 11–15, table III.
Type
locality.
Spain
,
Andalusia
,
Almería province
, Serón,
Cueva de la Santa
(
37°20′20″N
,
02°30′23″W
;
842 m
a.s.l.
).
Distribution.
Spain
:
Andalusia
.
Diagnosis (
♀
).
A medium-sized, hypogean
Occidenchthonius
species of weakly troglomorphic facies. Movable cheliceral finger without isolated subapical tooth (
di
), spinneret prominent in female, unknown for male; without eyes or eye-spots, anterior margin of carapace without preocular microsetae, posterior margin with 2 macrosetae; chelal hand very weakly depressed at level of
ib
/
isb
, with short and very flattened hump distad of
ib
/
isb
and extremely gentle slope between trichobothria
ib
/
isb
and
eb
; fixed chelal finger with 20–21 teeth; movable chelal finger with 12–14 teeth and 9–12 rounded vestigial teeth on weakly raised lamina; pedipalpal femur (
♀
) 7.3 times longer than broad, length
0.80 mm
; chela 6.8 (
♀
) times longer than deep, length
1.09 mm
; ratio movable chelal finger/chelal hand (
♀
) 1.5.
Material.
None available for this study.
Description (
♀
;
♂
unknown).
Medium-sized, hypogean species of weakly troglomorphic facies. Integument depigmented.
Carapace slightly shorter than broad, constricted posteriorly; medial part of anterior margin distinctly prominent, without a well-defined epistome, and strongly dentate. Without eyes or eye-spots. Chaetotaxy: 18 setae, without preocular microsetae, 2 setae in posterior row, formula 4:6:4:2:2.
Cheliceral hand with 7 setae and 1 lateral microseta. Fixed finger with 14 teeth decreasing in size proximally, the subdistal tooth distinctly larger than others. Movable finger without an isolated subapical tooth (
di
), with 9 teeth, 5 distalmost ones of same size, the others decreasing in size proximally; spinneret prominent and apically rounded in female, unknown for male.
Coxa II and III with 11 and 6 bipinnate coxal spines on each side respectively.
Chelal hand very weakly depressed at level of
ib
/
isb
, with short and very flattened hump distad of
ib
/
isb
and extremely gentle slope between trichobothria
ib
/
isb
and
eb
; 4 proximal setae, seta
ph3
present. Fixed finger with 20–21 teeth. Movable finger with 12–14 teeth and 9–12 rounded vestigial teeth on weakly raised lamina; basal apodeme long; coupled sensilla
pc
between trichobothria
sb
and
b
, closer to
sb
. Trichobothrium
ist
well distad of
esb
.
Measurements and ratios
. Female
holotype
: Body 1.40. Carapace 0.47/0.43 (1.1). Pedipalp: femur 0.80/0.11 (7.3), patella 0.31/0.13 (2.4), chela 1.09/0.16 (6.8), hand 0.44 (2.7), movable finger 0.67; ratio movable finger/hand 1.5, femur/movable finger 1.2, femur/carapace 1.7, chela/carapace 2.3, chela/femur 1.4.
Remarks.
Occidenchthonius torremarinae
(
Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2012
)
shows most of the characteristics of the
verai
-group, to which is tentatively assigned; the presence/absence of the chelal lyrifissure
hp
or the cheliceral lyrifissure
ldb
has not been checked, given that no material was available for this study. The main difference from the closely related species that share about 10 rounded vestigial teeth in the basal half of movable chelal finger (
O. espanyoli
,
O. perezi
,
O. ventalloi
and
O. verai
) is the presence of only one large tooth on fixed cheliceral finger, versus two in the others. The above description is based on that of
Carabajal
et al.
(2012)
.