On the genus Systaria (Araneae: Clubionidae) in Southeast Asia: new species from caves and forests
Jäger, Peter
Zootaxa
2018
2018-10-26
4504
4
524
544
Jäger, 2018
Jäger
2018
[151,351,918,944]
Arachnida
Clubionidae
Systaria
GBIF
Animalia
Araneae
11
535
Arthropoda
species
bifidops
sp. nov.
Figs 29–30, 45–46
Type material: MALAYSIA: Malay Peninsula: Holotype: male, Pahang State, Fraser’s Hill, Telekom Loop, close to: 3°43'6.3''N, 101°45'9.86''E, 1300 melevation, secondary forest, embankments along road, P. Jäger& T. Laufsleg. by hand, by night, 16.2.2015( SMF).
Etymology.The species name is a combined name from the species Systaria bifida Dankittipakul & Singtripop 2011and the Greek nomen “ops”, meaning “appearance” and referring to the similarity of the copulatory organs of the two species; term in apposition.
Diagnosis.Small spiders with body length of males: 9.0. The new species is similar to Systaria bifidain having a strongly developed proximal tegulum, a similar conformation of the embolus and the RTA ( Figs 29–30), but may be distinguished by the much smaller bifid process (larger and more pronounced in S. bifida), the shorter embolus with its tip resting close to the conductor (embolus distinctly longer and extending retrolaterally beyond the cymbial margin and conductor in S. bifida) and the proximal tegulum stronger projecting proximo-prolaterally (projecting mainly proximally in S. bifida).
Description. Male( holotype): prosoma length 4.5, prosoma width 3.2, anterior width of prosoma 1.7, opisthosoma length 4.5, opisthosoma width 2.3. Eyes: AME 0.35, ALE 0.22, PME 0.23, PLE 0.25, AME–AME 0.06, AME–ALE 0.02, PME–PME 0.29, PME–PLE 0.20, AME–PME 0.16, ALE–PLE 0.01. Cheliceral furrow with 3 promarginal and 2 retromarginal teeth. Spination: Palp: femur p001, d012, patella–tarsus with bristles, not counted in spination; femur I p0011, d111, r110, II p0101, d111, r111, III p111, d111, r111, IV p111(1111), d111(1111), r111(0122); patella I–IV 000; tibia I–II v220, III p11, d010, r11, v222, IV p11, r1(2)1, v2122(2212); metatarsus I v200, II v220, III p122, r112, v212, IV p122, r122, v222. Leg formula: 4123. Measurements of palp and legs: Palp 4.8 (2.0, 0.7, 0.6, -, 1.5), I 16.9 (4.6, 1.8, 4.6, 3.8, 2.1), II 14.1 (3.9, 1.6, 3.7, 3.0, 1.9), III 12.1 (3.3, 1.4, 2.7, 3.1, 1.6), IV 17.5 (4.8, 1.7, 4.0, 4.9, 2.1). Palp as in diagnosis ( Figs 29–30). Cymbium distinctly longer than tibia, tip pointed. RTA arising distally from tibia with its disto-dorsal margin humped. Embolus arising in 8- o’clock-position from tegulum, slightly bent, with broad base, its tip situated in 1-o’clock-position. Broad part of spermophor visible mainly at retrolateral tegulum. Colouration. Light reddish-brown without pattern. Fovea, eye region, chelicerae, labium gnathocoxae and margins of sternum darker. Opisthosoma greyish with light longitudinal stripe in anterior half. FIGURES 27–32. Systariaspp., copulatory organs. 27–28 Systaria bregibec spec. nov., holotype male from Cambodia, Rabbit Island. 29–30 Systaria bifidops spec. nov., holotype male from Malaysia, Bukit Fraser. 31–32 Systaria panay spec. nov., holotype female from Philippines, Panay Island. 27–30 Left palp (27, 29 ventral, 28, 30 retrolateral). 31 Epigyne, ventral. 32 Vulva, dorsal. Abbreviations: BP—bifid process of RTA, CO—copulatory opening, LO—loop of copulatory ducts, TPproximal projection of tegulum, VH—ventral hump of palpal tibia. Female: unknown.
Distribution.Known only from the typelocality ( Figs 45–46). Natural history.Specimens were found in a secondary forest in the leaf litter at an elevation of 1300 m.
2028138117
2015-02-16
SMF
P. Jager & T. Laufs
Malaysia
Malay Peninsula
1300
3.7184167
Fraser's Hill
1
101.75274
State
11
535
1
Pahang
holotype