Hitobia procula, Sankaran & Sebastian, 2018

Sankaran, Pradeep M. & Sebastian, Pothalil A., 2018, New species of gnaphosid spiders (Araneae: Gnaphosidae) from the Western Ghats of India, Journal of Natural History 52 (27 - 28), pp. 1733-1744 : 1734-1736

publication ID

https://doi.org/ 10.1080/00222933.2018.1478998

publication LSID

lsid:zoobank.org:pub:B0090C55-5C3A-4D8A-A543-EFE945F09332

persistent identifier

https://treatment.plazi.org/id/CC493F2C-FFBF-EF07-FE49-FA93C2DF1862

treatment provided by

Carolina

scientific name

Hitobia procula
status

sp. nov.

Hitobia procula View in CoL sp. nov.

( Figures 1 View Figure 1 (a), 2(a–c) and 5)

Type material

Holotype, male, India, Kerala, Thrissur, Chimmony Wildlife Sanctuary , 10.41855N, 76.53534E, 709 m altitude, leg. M.S. Pradeep, from ground, by hand, 6 March 2014, ADSH3851 View Materials A GoogleMaps . Paratypes, 2 males, same data as holotype, ADSH 3851B.

Diagnosis

Males of Hitobia procula sp. nov. seem most similar to the males of Hitobia tengchong Wang and Peng, 2014 but can be distinguished from the latter by the following combination of characters: tibia disto-ventrally possesses a widely triangular bulge (tibia of H. tengchong lacks such bulging), retrolateral tibial apophysis with blunt tip ( H. tengchong with angular retrolateral tibial apophysis), stout embolus ( H. tengchong with thin embolus) and triangular conductor without pointed apex (conductor of H. tengchong lamellate with pointed apex) (compare Figure 2 View Figure 2 (b, c) with Wang and Peng 2014: figs 7–8).

Etymology

The specific epithet is an adjective referring to the very long macrosetae on the palpal tibia of the new species. Latin procul = long.

Description

Male (holotype, Figure 1 View Figure 1 (a)). Carapace, eyefield, clypeus, chelicerae olive-brown; thoracic part covered with erect, black hairs. Fovea narrow, longitudinal, straight, reddish-brown. Maxillae, labium, sternum yellowish-brown with black shades. Cheliceral promargin with three teeth, retromargin with one. Fangs brownish. Opisthosoma rectangular, hirsute with postero-lateral corrugations; dorsum olivebrown, disto-laterally with paired creamy yellow patches, with a pair of transverse bands near the posterior part, anterior one creamy yellow, posterior white; venter yellowish-brown. Spinnerets, legs yellowish-brown with black shades. Scopulae on tarsi I and II entire, III and IV lack scopulae; distal half of metatarsus I and distal quarter of metatarsus II with scopulae, metatarsi III and IV without scopulae. Body length 3.83. Prosoma length 1.79, width 1.27. Opisthosoma length 2.04, width 1.10. Eye diameters: ALE 0.06. AME 0.07. PLE 0.04. PME 0.04. Eye interdistances: ALE–PLE 0.07. AME–AME 0.02. AME–ALE 0.01. AME–PME 0.07. PME–PME 0.09. PME–PLE 0.05. Clypeus height at AMEs 0.09, at ALEs 0.06. Chelicerae length 0.48. Measurements of pedipalp and legs. Pedipalp 1.39 (0.49, 0.23, 0.19, 0.48), I 3.88 (1.20, 0.65, 0.82, 0.72, 0.49), II 3.86 (1.15, 0.65, 0.79, 0.78, 0.49), III 3.77 (1.11, 0.54, 0.73, 0.85, 0.54), IV 5.12 (1.45, 0.71, 1.02, 1.38, 0.56). Leg formula: 4123. Spination of pedipalp: femur pld 1 do 2, patella pl 1 do 2, tibia pld 2 rld 1, tarsus/cymbium pl 1 plv 1 rl 1 rld 1; legs: femur I pl 1 pld 1 do 3, II pld 2 do 3, III pld 2 do 3 rld 2, IV pld 1 do 3 rld 1; patellae I–III spineless, IV rl 1; tibiae I plv 3 rlv 3, II plv 2 rlv 3, III pl 2 pld 2 plv 3 do 1 rl 1 rld 1 rlv 2, IV pl 2 pld 1 plv 3 rl 2 rld 1 rlv 3; metatarsi I–II plv 1 rlv 1, III pl 1 pld 3 plv 3 rld 3 rlv 3, IV pl 1 pld 3 plv 4 rl 1 rld 3 rlv 4; tarsi I–IV spineless. Pedipalp ( Figure 2 View Figure 2 (a–c)): Pedipalp segments yellowish-brown; tibia disto-ventrally with a wide, triangular bulge that bears the ventral tuft of hairs ( Figure 2 View Figure 2 (b)), distoprolaterally with four macro setae of varying length ( Figure 2 View Figure 2 (a)). Cymbium spinose ( Figure 2 View Figure 2 (a–c)). Retrolateral tibial apophysis short, hook-like with smooth, round tip ( Figure 2 View Figure 2 (b, c)). Bulb elongated, widest at middle ( Figure 2 View Figure 2 (b)). Subtegulum small, postero-prolaterally placed ( Figure 2 View Figure 2 (a)). Conductor short, triangular with blunt tip, directed at 11 o’ clock position ventrally ( Figure 2 View Figure 2 (b)). Embolus short, stout, arising disto-prolaterally from bulb, directed at 12 o’ clock position ventrally ( Figure 2 View Figure 2 (b)).

Female. Unknown.

Natural history

Hitobia procula sp. nov. were collected from the forest floor among litter.

Distribution

Known only from the type locality ( Figure 5 View Figure 5 ).

Remarks: First record of the genus from India.

ADSH

Arachnology Division, Sacred Heart College

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Gnaphosidae

Genus

Hitobia

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