Onomastus kaharian, Benjamin, 2010

Benjamin, Suresh P., 2010, Revision and cladistic analysis of the jumping spider genus Onomastus (Araneae: Salticidae), Zoological Journal of the Linnean Society 159 (3), pp. 711-745 : 724-729

ONOMASTUS KAHARIAN SP. NOV.

( FIGS 5A–E , 6A–F )

Holotype: ♂ from Indonesia, Central Kalimantan, Kaharian, 20°2′S, 113°40′E. Swampy primary forest,

D E

Diagnosis: Males are readily separated from O. patellari s and O. indra by the absence of TA2. Separated from O. rattotensis , O. nigricauda , O. quinquenotatus , and O. pethiyagodai by the presences of a broad conductor ( Fig. 6D ). Separated from O. complexipalpis , O. kanoi , and O. nigrimaculatus by the scoop-like MA and shape of C ( Fig. 6D ). Females could be separated from all other Onomastus by the presence of semicircular epigynal fold and C-shaped CD ( Fig. 5D, E ).

Remarks: Onomastus simoni appears to be closely related to O. kaharian . They may be separated from each other by the parallel course of CD in O. simoni .

Male holotype: Total length: 3.4; prosoma length: 1.5, width: 1.0. Leg I: femur 1.6, patella 0.5, tibia 1.7, metatarsus 1.1, tarsus 0.5. All spiders are whitish to pale yellow in alcohol, no markings. Prosoma oval, almost as wide as long, laterals darker. Opisthosoma oval, longer than wide, lighter in colour. Legs pale yellow, laterally without dark markings; might be a result of preservation. All eyes except AME surrounded by dark rings. Chelicerae with pro- and retromarginal teeth, number not examined. Leg formula 4132. Leg spination: leg 1: metatarsus V 2-1-2; tibia V 2-2-3; femur D 0-0-1, P 0-1-2. Palp as in Figures 5A, B and 6A–F .

Female paratype: Total length: 3.5; prosoma length: 1.4, width: 1.0. Leg 1: femur 1.4, patella 0.4, tibia 1.5, metatarsus 1.1, tarsus 0.4. Morphology as above, except for the lighter coloured prosoma, opisthosoma and leg spination given below. Leg spination: leg 1: metatarsus V 2-1-2; tibia V 3-2-2; femur D 1-1-1. Epigynum and vulva as in Figure 5C–E .

in leaf litter, 2–16.ix.1985. Leg. Suharto Djojosudharmo. Deposited in RMNH.

Paratype: ♀ from Indonesia, locality and label data as above. Deposited in RMNH .

Etymology: The species name is a noun in apposition, taken from the type locality.

Distribution: Thailand and Indonesia.

Other material examined: Indonesia: Central Kalimantan, Kaharian , 20°2′S, 113°40′E. Swampy primary forest, in leaf litter, 2–16.ix.85, 2♂ (a single left palp on a sputter-coated SEM stub), 5♀, leg. Suharto Djojosudharmo, deposited in RMNH . Thailand: Nakhon Si Thammarat Prov. Khao Luang NP, 8°43′25.2″ N, 99°40′7.7″E, 355 m, 10–12.x.2003 (ATOL expedition 2003), 1♂ 1♀, deposited in USNM .

ONOMASTUS KANOI ONO, 1995

( FIG. 7A–E )

Diagnosis: Onomastus kanoi is readily distinguished from all known species of Onomastus except for O. complexipalpis by the large disk-shaped palpal conductor in the males ( Fig. 7A–D ). The conductor of O. kanoi is relatively smaller than that of O. complexipalpis ( Fig. 7D ). The female of O. kanoi is unknown. However, I predict that the CD of O. kanoi females would be longer than that of all other Onomastus , but shorter than that of O. complexipalpis .

Male: Total length: 5.2; prosoma length: 2.0, width: 1.5. Leg I: femur 2.0, patella 0.6, tibia 2.0, metatarsus 2.0, tarsus 0.6. For a detailed description see Ono (1995).

Female: Unknown.

Distribution: Endemic to Okinawa Island of Japan.

Material examined: Japan, Okinawa Prefecture, Okinawajima Island , Kijoka. 01.iv.1997. 1♂ ; Japan, Okinawa Prefecture, Okinawajima Island , Zutsun. 01.iv.2000, 1¢. All leg. Akio Tanikawa.

Figures

Figure 5. Onomastus kaharian sp. nov. from Central Kalimantan (RMNH). A, left male palp, ventral view. B, ditto, retrolateral view. C, epigynum, ventral view. D, vulva, ventral view. E, ditto, dorsal view. Abbreviations: C, conductor; CO, copulatory opening; E, embolus; EF, epigynal folds; FD, fertilization duct; MA, median apophysis. Scale bars = 0.1 (C–E), 0.2 (A, B).

Figure 6. Onomastus kaharian sp. nov. from Central Kalimantan (RMNH). A, left male palp, prolateral view. B, D, ditto, ventral view. C, E, F, Ditto, retrolateral view. Abbreviations: C, conductor; E, embolus; MA, median apophysis; PA, patella apophysis; PT, patella; T, tibia. Scale bars = 20 Mm (D, E), 30 Mm (A, B, C, F).

Figure 7. Onomastus kanoi from Okinawa Prefecture (USNM). A, E, left male palp, ventral view. B, ditto, prolateral view. C, D, ditto, retrolateral view. F, profile of PA, retrolateral view. Abbreviations: C, conductor; MA, median apophysis; PA, patella apophysis; PT, patella; SP, spur mesal branch of C; T, tibia; TA1, tegular apophysis 1. Scale bars = 100 Mm.