Urozelotes patulusus, 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 : 1739-1742

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-FFBA-EF09-FE68-F915C29F1F74

treatment provided by

Carolina

scientific name

Urozelotes patulusus
status

sp. nov.

Urozelotes patulusus View in CoL sp. nov.

( Figures 1 View Figure 1 (c, d), 4(a–e) and 5)

Type material

Holotype, male, India, Kerala, Ernakulam, Kurisumudi in Malayattoor , 10.20926N, 76.50245E, 94 m altitude, leg. M. S. Pradeep, from ground, by hand, 23 January 2014, ADSH38113 View Materials A GoogleMaps . Paratypes, 1 female, 2 subadult females, 3 juveniles, same data as holotype, ADSH 38113B.

Other material examined

1 female, INDIA, Kerala, Ernakulam, Illithodu , 10.19887N, 76.55015E, 24 m GoogleMaps . altitude, leg . M GoogleMaps . S . Pradeep , from ground, by hand, 25 February 2014, ADSH38113 View Materials C .

Diagnosis

Males of Urozelotes patulusus sp. nov. are most similar to the males of Urozelotes tri fi dus Tuneva, 2003, but can be separated from the latter by the following combination of characters: apico-medially originating embolus without embolar projection ( U. tri fi dus with apico-prolaterally arising embolus with embolar projection), apico-medially arising median apophysis having prolateral orientation (median apophysis of U. tri fi dus with apico-retrolateral origin and retrolateral orientation), terminal apophysis straight with blunt tip (terminal apohysis of U. tri fi dus angular and directed at 1 o’ clock) and short, wide retrolateral tibial apophysis ( U. tri fi dus with long, slender retrolateral tibial apophysis). Females of Urozelotes patulusus sp. nov. seem closely related to the females of U. rusticus , but can be easily distinguished by a median, tubular scape, which is absent in the latter species (compare Figure 4 View Figure 4 (b–d) with Platnick and Murphy 1984: figs 57–58, Tuneva 2003: figs 1–3).

Etymology

The specific epithet is an adjective referring to the wide basal part of the retrolateral tibial apophysis of the new species. Latin patulus = wide.

Description

Male (holotype, Figure 1 View Figure 1 (c)): Carapace, eyefield, clypeus, chelicerae, fangs, maxillae, labium, sternum, spinnerets brownish. Carapace with appressed fine, black hairs; thoracic part marginally black. Fovea longitudinal, reddish-brown. Cheliceral promargin with one tooth, one bifurcated tooth and three denticles, retromargin with four teeth. Opisthosoma rectangular, hirsute; dorsum olive-brown with closely packed black spots and stripes; venter, laterals greyish. Legs yellowish-brown with black shades; metatarsi lack scopulae; metatarsi III and IV with distal preening comb; tarsi weakly scopulated. Body length 3.01. Prosoma length 1.50, width 1.06. Opisthosoma length 1.51, width 0.86. Eye diameters: ALE 0.06. AME 0.07. PLE 0.06. PME 0.07. Eye interdistances: ALE–PLE 0.03. AME–AME 0.01. AME–ALE 0.02. AME–PME 0.06. PME–PME 0.02. PME–PLE 0.03. Clypeus height at AMEs 0.06, at ALEs 0.04. Chelicerae length 0.60. Measurements of pedipalp and legs. Pedipalp 1.37 (0.56, 0.26, 0.17, 0.38), I 3.68 (1.04, 0.64, 0.87, 0.65, 0.48), II 3.02 (0.85, 0.55, 0.66, 0.54, 0.42), III 2.60 (0.76, 0.43, 0.47, 0.56, 0.38), IV 3.82 (1.05, 0.54, 0.80, 0.93, 0.50). Leg formula: 4123. Spination of pedipalp: femur do 2, patella do 2, tibia pld 1, tarsus/cymbium pld 1 plv 2; legs: femur I pld 1 do 2, II pld 1 do 5, III pld 2 do 2 rld 1, IV pld 1 do 2 rld 1; patellae I–II spineless, III rl 1, IV spineless; tibiae I–II spineless, III pl 2 pld 2 plv 3 do 1 rl 3 rlv 3, IV pl 3 plv 3 rl 4 rlv 3; metatarsus I spineless, II plv 2, III pl 2 pld 3 plv 1 rl 2 rld 2 rlv 1, IV pl 2 pld 2 plv 3 rl 2 rld 3 rlv 1; tarsi I–IV spineless. Pedipalp ( Figure 4 View Figure 4 (a–c)): Pedipalp segments yellowish-brown. Retrolateral tibial apophysis short with wide base and claw-like tip ( Figure 4 View Figure 4 (b, c)). Cymbium spinose ( Figure 4 View Figure 4 (a–c)). Bulb sac-like ( Figure 4 View Figure 4 (b)). Subtegulum prominent, nearly as long as tegulum ( Figure 4 View Figure 4 (a)). Terminal apophysis erect, disto-medially originating, with wide base and narrow, smoothly rounded tip, directed at 2 o’ clock position ventrally ( Figure 4 View Figure 4 (b)). Median apophysis short, claw-like, apical to bulb ( Figure 4 View Figure 4 (b)). Conductor apparently absent. Embolus flat with blunt tip, arising apical to bulb, lying behind median apophysis, directed ventrally ( Figure 4 View Figure 4 (b, c)).

Female (paratype, Figure 1 View Figure 1 (d)): Like male except the following. Carapace, eyefield, clypeus, chelicerae, fangs, maxillae, labium, sternum, spinnerets yellowish-brown. Body length 2.61. Prosoma length 1.31, width 1.30. Opisthosoma length 1.30, width 0.79. Eye diameters: ALE 0.04. AME 0.04. PLE 0.04. PME 0.06. Eye interdistances: ALE–PLE 0.02. AME–AME 0.02. AME–ALE 0.01. AME–PME 0.06. PME–PME 0.01. PME–PLE 0.02. Clypeus height at AMEs 0.03, at ALEs 0.02. Chelicerae length 0.38. Measurements of palp and legs. Palp 1.14 (0.43, 0.22, 0.18, 0.31), I 3.09 (0.91, 0.56, 0.68, 0.55, 0.39), II 2.52 (0.74, 0.48, 0.52, 0.44, 0.34), III 2.21 (0.63, 0.37, 0.39, 0.48, 0.34), IV 3.41 (0.93, 0.51, 0.70, 0.81, 0.46). Leg formula: 4123. Spination of palp: femur do 2, patella pld 1 do 1, tibia pl 1 pld 1 rld 2, tarsus pl 2 pld 1 plv 1 do 1 rl 1 v 2; legs: femora I–II pld 1 do 3, III–IV pld 1 do 2 rld 1; patellae I–II spineless, III rl 1, IV spineless; tibiae I–II spineless, III pl 2 pld 1 plv 3 rl 2 rld 1 rlv 3, IV pl 2 pld 2 plv 2 rl 2 rld 3 rlv 2; tarsi I–IV spineless. Genitalia ( Figure 4 View Figure 4 (d, e)): Epigynum with median tubular scape ( Figure 4 View Figure 4 (d)). Copulatory openings small, circular, medio-laterally placed ( Figure 4 View Figure 4 (d)). Copulatory ducts short, slightly wavy ( Figure 4 View Figure 4 (e)). Median ducts short, arising proximally from copulatory ducts, with spherical terminal parts ( Figure 4 View Figure 4 (e)). Spermathecae large, globular, medially contiguous ( Figure 4 View Figure 4 (e)). Fertilization ducts long, slender, diverging from each other ( Figure 4 View Figure 4 (e)).

Natural history

Urozelotes patulusus sp. nov. were collected from the forest floor among litter.

Distribution

Known only from the collecting localities ( Figure 5 View Figure 5 ).

ADSH

Arachnology Division, Sacred Heart College

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Gnaphosidae

Genus

Urozelotes

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