The genus Zambedania Mahunka 1972 (Acari: Heterostigmatina: Pygmephoridae) — redescription of the type species Z. africana and descriptions of two new species from Africa and South America
Author
Camerik, Anne M.
Author
Magowski, Wojciech Ł.
text
Zootaxa
2014
3793
1
71
98
journal article
36864
10.11646/zootaxa.3793.1.3
645fd38b-4db3-49e7-8d20-206cc049a2e6
1175-5326
285962
BA5F8DE5-70E3-4D22-9ABC-AEFAAA1BF38A
Zambedania argentiniana
sp. n.
Figs 14–20
.
Diagnosis.
The female of
Z. argentiniana
differs uniquely from that of its congeners by having its prodorsal stigmata long, over 1/2 of PdS length and located anteriorly, aggenital plate (Ag) spectacular by its scale-like ornamentation, TiTa I slim and Ta IV lacking empodium. The arrangement of the three prodorsal setae is as follows, the robust and long second scapular
sc2
, closest to the stigmata, has moved to the anterior-most position of the triplet. It differs specifically from
Z. africana
by only one claw present on Ta IV; from
Z. madagascariana
by the stigmata not being subdivided and from both African species by setae
h1
subequal in length to
h2
; and from
Z. africana
by only one claw present on Ta IV.
Description.
Phoretic female (
holotype
and two
paratypes
; measurements in
Table 2
).
Gnathosoma (
Fig. 20
A). Cheliceral setae
ch1
~
ch2
, barbed, aligned transversely. Palpal setae
d
Fe and
d
Ge barbed. A pair of smooth supracoxal setae
pp
present. Dorsomedian apodeme and ventral structures out of sight. Pharyngeal system not seen.
Idiosomal dorsum (
Figs. 14
B; 20B). PdS with anterior edge weakly rounded and stigmatal slits reaching anterior edge. All dorsal idiosomal setae long and strongly barbed and not on protuberances. Robust, barbed and long second scapular,
sc2
, inserted slightly antero-mediad of shorter
v2.
Bothridial
sc1
globose-elongate, pointed distally, with tiny barbs. Opisthosomal dorsum with setae
c1, d, e
and
f
strongly barbed, not on protuberances. Setae
h1
subequal to
h2.
No cupules seen.
Idiosomal venter (
Figs. 14
A; 20C). Apodemes 1 and 2 very strongly sclerotized. Appr clearly attached to apsej, latter weakly developed. Ap 3 and 4 weakly developed and incomplete; appo incomplete, reaching only to ap 4. Ap 5 non-existent. Ag with scale-like ornamentation (
Fig. 20
G). All ventral setae barbed to slightly barbed. Setae
1a
and
1b
subequal, longest. On Ps pseudanal setae
ps 1, 2, 3
subequal.
Legs. Legs I (
Figs. 15–16
; 20D). All setae barbed or feathered. TiTa: claw robust, sharp; flanked by leafshaped unguinals
u’
-
u”
. Eupathidia:
p"
located laterally of “turret”. Dorsally of claw arise
tc'- tc"
on separate pinnacula. Fastigials
ft'- ft"
inserted proximally of tectals. Relative sizes of eupathidia:
ft'
~ 3/
4
ft
";
tc"
long and straight>
tc'
bent backwards (
ft"
~
tc"
longest of all);
p"
shortest of all eupathidia. Solenidia:
ω
<
φ1
and ~
φ2
. Relative sizes of setae:
pl'
<
pl"
(both weakly barbed);
pv'
<
pv"
;
s
shortest of TiTa, inserted below unguinals. Tibial
v'
~ feathered
v"
;
l'
>
l"
,
d
>
l'
;
k
~
l”
,
k
similar in distance to
φ1- φ2
as
d
. Ge: barbed
v"
<feathered
v'
;
l'
~ 2 1/2
l"
. Fe:
d
nearly
5
v
";
l’
>
v".
Tr
:
v'
~ 3/4 Ge
v'
.
Legs II (
Figs. 17
; 20E). Lobe-like empodium between two terminal, simple, hooked claws. All setae slightly to strongly barbed or feathered. Ta:
tc'
one-sidedly feathered<
pl"
(longest seta on segment) but>
tc"
;
pv'
slightly>
pv"
; smooth
u'
~ barbed
tc"
; cylindrical solenidion
ω
1 1/3 Ti
φ
. Ti: feathered
v'
slightly> barbed
v″
and feathered
l',
and
d
;
φ
~ ½ length of segment, adjacent to
d
. Ge:
v'
feathered ~ barbed
l'
and>
l"
. Fe:
d
longest seta on leg, reaching beyond tip of empodium;
l'> v"
, shortest of verticel.
Tr
:
v'
plumose, short but> Fe
v"
.
Legs III (
Fig. 18
). All setae slightly to strongly barbed or feathered. Terminal claws and empodium as in leg II. Ta: setae
pl"
and
tc'
both> smooth
tc"
;
pv"
<
pv'
;
u'
shortest and distalmost. Ti:
d
longest seta on segment, close to short
φ
;
v'
slightly>
v"
;
l'
shortest, hidden behind Ti
d
. Ge: seta
l'
slightly>
v'
. Fe: strongly barbed
d
longest seta of leg,
v'
<1/2
d.
Tr
:
v'
~ 1/2 Fe
d
.
Legs IV (
Figs. 19
; 20F). Only one claw, shaped similarly to claw of leg I, having one or two condyles and no empodium. Ta:
pl”>
tectals;
tc'
′>
tc'
;
pv'
slightly>
pv"
, Ti: solenidion absent,
l'
<
v'
;
v'
slightly <
v"
. Ge:
v’ <
tibial setae. Fe:
d
longest seta of whole leg IV.
Tr
:
v'>
Fe
v'
.
Material examined.
Holotype
: phoretomorph female collected ex
Stenoterommata platensis
(
Araneae
:
Nemesiidae
), identified by P. Goloboff. Loc.:
Argentina
, Prov. Misiones 16, Parque Urugua-i; Ruta Prov. 19, near Rio Urugua-i. Date:
16- 09-1992
; leg. P. Goloboff & C. Szumik.
Paratypes
:
4 females
(phoretomorphic) with same data as the
holotype
Deposition of
types
.
Holotype
and four
paratypes
deposited at the Zoologisches Institut und Museum, Universität Hamburg,
Germany
.
Remarks.
The SEM images of
Z. argentiniana
in this paper are not of the
type
(s).