Revision of Hindumanes Logunov, 2004 (Araneae: Salticidae: Lyssomaninae), with description of a new species from the Western Ghats of Kerala, India
Author
Sudhin, Puthoor Pattammal
Author
Nafin, Karunnappilli Shamsudheen
Author
Sudhikumar, Ambalaparambil Vasu
text
Zootaxa
2017
2017-11-17
4350
2
317
330
journal article
31411
10.11646/zootaxa.4350.2.7
eefa86d1-e8b0-40ca-8e9a-f1f39531632e
1175-5326
1053186
00DC83AE-1754-4065-8BDC-F49B01EA2DDD
Hindumanes
Logunov, 2004
Type species.
Lyssomanes karnatakaensis
Tikader & Biswas, 1978
.
Subfamily placement.
Subfamily
Lyssomaninae
currently comprises three genera,
Lyssomanes
,
Chinoscopus
and
Sumakuru
,
supported by the presence of a membraneous conductor in the male palp (
Wanless 1980
: figs 2G, H;
Maddison 2016
: figs 6, 7;
Galvis 2017
: figs 7d–g). The presence of this structure (
Figs 5A–C, E
) and the general conformation of the palpal bulb strongly support its placement in the subfamily
Lyssomaninae
.
Diagnosis.
Hindumanes
can be easily distinguished from most of the lyssomanine genera by the following characteristics: Carapace relatively high and oval (carapace low and virtually flat in
Chinoscopus
and elongate in
Sumakuru
); the relative width of the eye field is small (it is much wider in the other genera, see
Logunov 2004
); AME directed anteriorly (in
Sumakuru
, they are tilted to the sides); ALE situated directly behind AME, almost on the optical axis of AME (ALE widely separated in
Chinoscopus
and most
Lyssomanes
; in
Sumakuru
and some species of
Lyssomanes
, such as
L. anchicaya
Galiano, 1984
and
L. elongates
Galiano, 1980
, ALE are situated directly behind AME).
Hindumanes
is morphologically closer to
Lyssomanes
, by having similar body, presence of paired ventral spines on tibia and metatarsi of legs I & II, and similar palpal organization. It can be distinguished from
Lyssomanes
by the following combination of characters: ALE situated directly behind AME, almost in the optical axis of the AME (in most
Lyssomanes
, ALE widely separated behind AME) (
Figs 4A–B
; see also
Tikader & Biswas 1978
: fig. 1;
Logunov 2004
: fig. 3); relative width of the eye field is narrower: the ratio of “carapace width at PME/PME–PME distance” is around 3:1 (the relative width of the eye field is much wider, see
Logunov 2004
); patellae I & II with a dorsal macrosetae distally and a dorsal spine on the patellae III & IV (
Lyssomanes
has both lateral and dorsal spines on all patellae). The female of
Hindumanes
can be easily recognized from
Lyssomanes
by the distinctive female copulatory organ: large spermathecae with no glandular ducts (in true
Lyssomanes
,
spermathecae are smaller, with well-developed glandular ducts) (
Figs 7A–B
; see also
Galiano 1980
;
Logunov & Marusik 2003
;
Logunov 2004
,
2014
).
The male palp of
Hindumanes
is characteristic of the
Lyssomaninae
and surprisingly similar to the palpal structure of most
Lyssomanes
. The structure of the palp can be characterized as follows: 1. Long palp with an elongated cymbium and well developed tutaculum (
Fig. 5C
), femur and patella devoid of any apophyses; 2. Tibia with a distal process and a long retrolateral outgrowth in the distal mid-section (
Figs 5A–D
). Different
types
of retrolateral tibial modifications have been found in some species of
Lyssomanes
, but most of them are brush-like formed by long and strong bristles (
Galiano 1980
: figs 63, 89, 147;
Logunov 2014
: fig. 27); 3. Membraneous conductor is present (
Figs 5A–C, E
), which is considered as a synapomorphy in Lyssomanine (
Wanless 1980
); 4. Spermophore configuration almost similar to that of
Lyssomanes
(
Galiano 1980
;
Logunov 2014
;
Maddison 2016
).
Description.
Members of
Hindumanes
are green to yellowish-green, long-legged, medium-sized spiders (male = 5.57–6.13, female = 6.72–6.92). Sexes are alike in general body form, but dimorphism is evident in color markings. Females are uniformly green without distinct markings (
Figs 1C–D
); male carapace yellowish-orange with light reddish-brown lateral markings, abdomen dorsally with paired longitudinal stripes, similar stripes ventrolaterally (
Figs 1A–B
,
2A, E
); Female legs light green, tibia I with apical retrolateral black mottling; male legs with black longitudinal lines on the femur I and black bands on all tibiae (
Figs 1A–B
). Carapace oval, covered with colorless setae, with well-defined longitudinal fovea (
Figs 1A
,
2A, C
,
3A
,
4A–B
,
6A
); cephalic region truncated anteriorly, moderately high, highest at PLE; thoracic region gently sloping backwards margin almost rounded with concave posterior margin (
Figs 2E
,
3D
,
6D
). Eye field slightly raised, narrow, covered with lustrous appressed scales (
Figs 1A–D
,
2A, C, E
,
3A
,
4A–B
,
6A
). Eyes in four rows, anterior row widest, ALE positioned directly behind the first row, at the optical axis of AME; PME very small, closer to and situated at the optical axis of ALE; PLE almost same size as ALE; MOQ longer than wide and wider in front. Clypeus rather low, vertical and hairless. Chelicerae short, sub-vertical and parallel in females (
Figs 1D
,
3B–C
,
4A
,
6C
); moderately long and slightly diverging in males (
Figs 1B
,
2A–D
,
4B
); with two prolateral spines; promargin with three teeth, retromargin with five to six teeth (
Figs 4D–F
). Endites sub-parallel, rectangular, elongate, anteriorly rounded with inconspicuous scopulae (
Figs 2B
,
3B
). Labium almost rectangular, about as long as wide, almost half the length of endites (
Figs 2B
,
3B
). Sternum sub-pentagonal, posteriorly narrowing, with a triangular projection between coxae III & IV (
Figs 2B
,
3B
). Pedicel short. Abdomen elongate, ovoid, narrowing posteriorly. Spinnerets sub-equal in length, posterior spinnerets robust than others. Legs long, slender; legs with spines on all articles, except tarsi of all legs, patella I, II and metatarsus IV; tibia I & II with 4 pairs of ventral spines, metatarsi I & II with 3 pairs of ventral spines, patella I & II distally with a dorsal macrosetae and patellae III & IV with a dorsal spine; leg formula 1243. Female palpal articles light green, all articles with spines.
Male palp long, with spines on all articles, femur and patella without any apophysis; tibia with a distal tibial process and a long retrolateral tibial outgrowth joined to a stalk on the distal mid-section of tibia, slightly bent at the middle, the tip of which is flat and wide with uneven edges (
Figs 5A–D
). Cymbium highly elongated, covered with long and medium-sized setae, basally with a pair of elongated dorsal spines, distally with one prolateral and retrolateral spine (
Figs 5A, C
); tutaculum medium-sized, oval (
Fig. 5C
); bulb almost ovoid, occupying almost two fifths of cymbium; tegulum in the disto-retrolateral part of bulb; subtegulum occupies one third of the bulb; the retrolateral descending loop of sperm duct closely arranged (
Fig. 5E
); median apophysis long, wide, with an apical finger-like projection directed disto-prolaterally, with tip slightly bent downwards (
Fig. 5E
); conductor clamshaped (
Fig. 5A
); embolus base wide, the thin spermophore forming a twist in the embolus base before entering the embolus (
Fig. 5A
), embolus thin and elongated, initially oriented distally in an upward angle, then bending distoretrolaterally with the pointed tip slightly bent forward (
Fig. 5E
).
Epigyne simple and transparent; spermathecae large, longer than wide, with no glandular ducts, touching each other in
H. karnatakaensis
(see
Logunov 2004
: figs 1–2) or widely separated, as in
H. wayanadensis
sp. nov.
(
Figs 7A–B
); posterior outgrowth overhanging the epigastric furrow only in
H. karnatakaensis
(see
Logunov 2004
: figs 1–2); copulatory duct varies from moderately long to very short; fertilization duct small and acuminate, anterolaterally oriented, posterior to spermathecae (
Fig. 7A
;
Logunov 2004
: fig. 2).
Distribution.
Known only from western
India
(
Fig. 9
).
Species included.
Hindumanes karnatakaensis
(type species) and
H. wayanadensis
sp. nov.