Notes on Burmese spiders formerly attributed to the genus Storena (Zodariidae, Araneae)
Author
Dankittipakul, Pakawin
Author
Tavano, Maria
Author
Singtripop, Tippawan
text
Zootaxa
2011
3048
53
61
journal article
46230
10.5281/zenodo.203503
56ca823a-7a87-4fbf-8cb6-0f06ece1f174
1175-5326
203503
Mallinella exornata
(
Thorell, 1887
)
comb. nov.
(
Figs 8
,
12–16
)
Storena exornata
Thorell. Thorell, 1887
: 69
, description of male
Storena suavis
Thorell. Thorell, 1897
: 193
, description of female (misplaced)
Material examined.
Holotype
:
3,
BURMA
,
Bhamo
:
leg. L. Fea,
1885–1889
, left palp missing (
MSNG
, examined). Other material examined.
BURMA
,
Teinzo
:
1Ƥ, leg. L. Fea,
1885–1889
(
MSNG
, examined, originally identified as
S. suavis
)
Taxonomic remarks.
The male
holotype
of
M. exornata
comb. nov.
was collected from Bhamo, northern
Burma
(
Fig. 27
) and described by Thorell in 1887. The female, misidentified as
S. suavis
was collected from Teinzo, a village located approximately
20–30 km
northeast of Bhamo, the
type
locality of
S. exornata
, is here considered a true conspecific female of
M. exornata
comb. nov.
(
Figs 8
,
16
).
Diagnosis.
The male of
M. exornata
comb. nov.
can be recognized by the terminally bifid TA carrying a blunt apico-prolateral tooth situated anterior to a smaller but sharply pointed one in lateral view (
Figs 12–15
). The female (designated here) can be recognized by the median plate of the epigyne which is provided with a deep anterior median incision and protruding posterior median margin (
Figs 8
,
16
).
Redescription. Male
(
holotype
): Prosoma pear-shaped, widest between coxae II and III, in profile highest half way between PME and fovea. Carapace dark reddish brown. Sternum and chelicerae brown. Legs yellowish. Opisthosoma oval, covered with black, fine pubescence. Dorsum of opisthosoma dark purplish, with lightly sclerotized longitudinal dorsal scutum occupying approximately 1/3 opisthosomal length. Dorsal pattern represented by paired pale, round spots, followed by medially disconnected transverse bands and a series of broad transverse bands.
Palp
(
Figs 12–15
). RTA digitiform, short and stout, apex truncated. TA terminally with bifid apical process, its mesal branch elongated, sharply pointed, directed posteriad, its lateral branch slightly shorter; apico-retrolateral tooth more or less triangular, apex blunt, situated anterior to smaller, sharply pointed tooth; baso-prolateral ridge visible only in lateral view. Embolic base with straight anterior margin, strongly excavated posterior medially; membranous area triangular, narrowed and thin. Embolus with deep, longitudinal groove; mesal flange terminally with lanceolate extremity and deep, apical notch.
FIGURES 9–11.
Mallinella suavis
comb. nov.
, female holotype.
9.
Internal genital structures, dorsal view.
10.
Left spermatheca, lateral view.
11.
Right spermatheca, anterior view. Scale lines = 0.1 mm.
FIGURES 12–22.
Mallinella
species.
12–15.
M. exornata
comb. nov.
, male holotype.
16.
M. exornata
comb. nov.
, female (=
S. suavis
per Thorell) from Teinzo.
17–20.
M. fronto
comb. nov.
, male (=
S. exornata
per Thorell) from Carin Bia-po.
21.
M. fronto
comb. nov.
, female holotype.
22.
M. fronto
comb. nov.
, female (=
S. exornata
per Thorell) from Mt. Karen.
12, 17.
Right male palp, ventral view.
13, 18.
TA, ventral view,
14.
prolateral view,
19.
retrolateral view.
15.
Part of embolus, prolateral view.
16, 21.
Epigyne, ventral view.
20.
Palpal tibia showing RTA, retrolateral view.
22.
Internal genitalic structures, posterior view. Scale lines = 0.1 mm.
Female
(from Teinzo, MSNG): As in male but dorsal pattern on opisthosoma slightly different, represented by two pairs of pale, round spots and a series of transverse median bands.
Genitalia
(
Figs 8
,
16
). Median plate of epigyne bi-lobed, anterior margin with deep and broad median incision; posterior margin straight, provided with elevated median projection protruding over epigastric furrow.
Distribution.
North-east
Burma
(Bhamo and Tienzo).