Three new jumping spiders from northeastern India (Araneae: Salticidae: Hasariini: Habrocestum)
Author
Kadam, Gautam
Author
Tripathi, Rishikesh
Author
Sudhikumar, Ambalaparambil Vasu
text
Peckhamia
2023
2023-04-02
295
1
1
10
journal article
10.5281/zenodo.10834488
1944-8120
10834488
1EAC34CD-7EFE-431B-A6C4-32CF68C959C3
Habrocestum togansangmai
Kadam & Tripathi 2023
,
sp. nov.
Figures 3
,
4
A-E, 5 (Ƌ only)
Etymology
. The species group name is a patronym honouring Pa Togan Nengminja Sangma, a brave freedom fighter from the State of
Meghalaya
, who fought against the British army.
Type material
.
Holotype
: Ƌ (NRC-AA-7689) from
INDIA
:
Meghalaya
:
South West Khasi Hills
:
Nongnah village
(
25°16'03''N
,
91°19'12''E
;
992 m
alt.),
07 April 2022
,
Gautam K.
leg., from ground, by hand.
Deposited
in the
National Centre
for
Biological Sciences Research Collections
(
NRC
),
Bengaluru
,
India. Ƌ
, same data as holotype, except
South Garo Hills
,
Siju Bird Sanctuary
(
25° 20.501'N
,
90°40.997'E
;
162 m
alt.), photographic record by
Arpita D.
, specimen not collected (data used with permission).
Diagnosis
. Males of
Habrocestum togansangmai
are closely related to the males of
H. ohiyaensis
Kanesharatnam & Benjamin 2016
as both share an almost straight, thin embolus emerging from below the tegular layer, but can be distinguished from the latter species by a tegulum without a proximal lobe (vs. present in
H. ohiyaensis
), a short, triangular protrusion at distal end of the tegulum (vs. absent in
H. ohiyaensis
), a short and straight RTA (vs. medium sized and hooked-shaped in
H. ohiyaensis
) (compare
Figures 3D–E
with Kanesharatnam & Benjamin 2016, fig. 9A–F).
Description
.
Male
(
holotype
,
Figure 3A–C, F
, colouration in alcohol): carapace, eye field orangish red, clypeus and chelicerae brown; labium, endites, sternum, legs and spinnerets pale yellow, opisthosoma dark orange, distinctly marked with irregular shaped blotches having black hairs. Carapace covered with scattered fine black hairs; ocular region covered with orangish red hairs. Cheliceral promargin with two closely spaced, tiny teeth; retromargin with single bifurcated tooth (
Figure 3F
). Opisthosoma oval, hirsute. Leg I longest, with distinct black patches at the posterior end of segments. Body length. 2.95. Carapace 1.69 long, 1.26 wide. Opisthosoma 1.22 long, 0.96 wide. Ocular area 0.88 long, 1.06 wide. Eye sizes and interdistances: AME 0.36, ALE 0.23, PME 0.06, PLE 0.20; AME–AME 0.01, AME–ALE contiguous, PME–PME 0.98, ALE–ALE 0.75, PME–PLE 0.12, PLE–PLE 0.84, ALE–PME 0.23, ALE-PLE 0.40. Length of chelicerae 0.58. Clypeus height at AMEs 0.07. Sternum 0.64 long, 0.51 wide. Length of pedipalp and legs: pedipalp 1.39 [0.47, 0.24, 0.13, 0.55], I 3.77 [1.14, 0.59, 0.96, 0.71, 0.37], II 2.52 [0.82, 0.38, 0.54, 0.49, 0.29], III 2.91 [0.91, 0.34, 0.58, 0.73, 0.35], IV 3.08 [1.08, 0.45, 0.54, 0.70, 0.31]. Leg formula: 1432. Spination of pedipalp: femur pld 1 do 2, patella pl 1 do 1, tibia pld 1 do 2 rld 1, tarsus/cymbium pl 1 do 2 rl 1 rld 1; legs: femur I & IV do 3, II pl 1 do 3, III do 3 rld 2; patellae I–II 0, III pl 1 rl 1, IV pl 1; tibia I plv 3 rlv 3, II pl 1 plv 3 rlv 3, III pl 1 pld 1 plv 1 rl 1 rld 1 rlv 1, IV pl 1 pld 1 plv 1 rl 1 rld 1 rlv 2; metatarsus I plv 2 rlv 2, II pl 1 plv 2 rlv 2, III pl 1 pld 2 plv 1 rl 2 rld 2 rlv 2, IV pl 1 pld 2 plv 1 rl 1 rld 2 rlv 2; tarsi I–IV 0. Pedipalp (
Figure 3D–E
): cymbium hirsute, RTA short, thumb-like, with rounded apex directed at 11-o’ clock retrolaterally (
Figure 3E
). Tegulum moderately swollen, with short, triangular protrusion at distoretrolateral end (
Figure 3D
). Embolus thin, moderately long, originating distoprolaterally, with pointed apex directed at 1-o’ clock ventrally (
Figure 3D
).
Female
. Unknown.
Distribution
. Known from the South West Khasi Hills and South Garo Hills District of
Meghalaya
(
Figures 4E
,
5
).