Bowie hosei (F.O. Pickard-Cambridge, 1897 )

Omelko, Mikhail M. & Fomichev, Alexander A., 2024, New and poorly known species of Bowie Jäger, 2022 (Araneae: Ctenidae) from Southeast Asia, Zootaxa 5543 (3), pp. 383-403 : 400-402

Bowie hosei (F.O. Pickard-Cambridge, 1897)

( Figs 58–69 )

Ctenus hosei F.O. Pickard-Cambridge, 1897: 345 , pl. 4, figs 11, 17, 20, 28–30 (♂ ♀), not examined. Pocock 1897: 608, pl. 25, fig. 14 (♂ ♀).

Bowie hosei : Jäger 2022: 123, figs 560–567, 588–591 (♂ ♀).

Material examined. MALAYSIA: Sarawak State: 1♂ ( IBSS), Borneo, environs of Mulu village [4° 2’N, 114°47’E], 70 m, 9–11 March 1994, A.M. Emelyanov leg.

Diagnosis. By the shape of RTA, embolus (Em) and general palp conformation males of Bowie hosei resemble those of B. argentipes (van Hasselt) , B. angigitanus (Roewer) and B. beruang Omelko & Fomichev but can be easily distinguished by tegular apophysis (TA) with wide and short prolatero-proximad outgrowth (TO) (vs. narrow and more or less long; cf. Fig. 65 and Jäger 2022: figs 522, 542, Omelko & Fomichev 2023: fig. 10). For extended diagnosis see Jäger (2022).

Description. Male ( Figs 58–59 ). Total length 15.44. Prosoma 8.87 long, 6.70 wide. Opisthosoma 6.88 long, 4.27 wide. Prosoma dark brown, with light brown median band, widened and bearing two dark spots nearly ocular area. Median band covered with white setae. Lateral bands poorly visible. Fovea thin, black. Clypeus light brown. Chelicerae dark brown, with 3 promarginal and 4 retromarginal teeth, denticles absent. Sternum brown, without pattern. Labium dark brown. Endites dark brown with yellow distal edge. Dorsal part of opisthosoma greenish gray with distinct yellowish serrated band covered with white setae. Lateral sides of opisthosoma yellowish with brown spots. Ventral part of opisthosoma dark gray with yellowish spots forming two V-marks (inner mark indistinct). Spinnerets yellow ventrally, dark brown laterally.

Eye diameters: AME 0.41, ALE 0.20, PME 0.50, PLE 0.44; interdistances: AME–AME 0.18, AME–ALE 0.39, PME–PME 0.20, PME–PLE 0.40, AME–PME 0.09, ALE–PLE 0.16. Clypeus height at AME 0.22, at ALE 0.75.

For palp and legs measurements see Table 15 . Palp coloration: femora, patellae brown; tibiae and cymbium dark brown. Legs coloration: both leg I absent. Femora II dark brown dorsally, brown laterally and ventrally, with brown spots retrolaterally; III–IV dark brown dorsally, brown laterally and ventrally, with brown spots laterally. Patellae II–III brown; IV brown with short white setae. Tibiae II brown with short white setae distally; III brown; IV brown with short white setae. Metatarsi I brown; III–IV brown with dark brown semi-rings. Tarsi II–IV light brown. For palp and legs spination see Table 16 .

Palp as shown in Figs 60–67 . RTA long, strongly curved in ventral view. Cymbium with thin, short, curved retrodorsal spur (CS) with sharp tip. Tegular apophysis (TA) large, right-angled anteriorly, with large prolatero-proximad outgrowth (TO). Conductor (C) large, membranous. Embolus (Em) with retrolateral (RP) and prolateral (PP) parts of its tip (visible in anterior view) and basal embolic hook (EH).

Notes. Since Bowie hosei is known from only three taxonomic entries ( World Spider Catalog 2024) with only black-and-white pictures of its copulatory organs, we provide a detailed redescription of the male here. Distribution. Borneo ( Malaysia: Sarawak Prov., and Brunei) ( Figs 68–69 ).

Figures

FIGURES 58–59. Male habitus of Bowie hosei (F.O. Pickard-Cambridge). 58—dorsal; 59—ventral. Scale bar: 2 mm.

FIGURES 60–67. Palp (60–63) and bulb (64–67) of Bowie hosei (F.O. Pickard-Cambridge). 60, 64—prolateral; 61, 65—ventral; 62, 66—retrolateral; 63—dorsal; 67—apical. Scale bars: 60–63 = 0.5 mm; 64–67 = 0.2 mm.Abbreviations: EH—embolic hook, Em—embolus, C—conductor, CS—cymbial spur, PP—prolateral part of embolic tip, RTA—retrolateral tibial apophysis, RP— retrolateral part of embolic tip, TA—tegular apophysis, Te—tegulum, TO—tegular apophysis outgrowth.

FIGURES 68–69. Collection localities of the studied Bowie species. Circle—Bowie catopuma sp. nov.; star—Bowie musang sp. nov.; diamond—Bowie neukoeln Jäger; triangle—Bowie tangalunga sp. nov.; inverted triangle—Bowie shakeit Jäger; square—Bowie hosei (F.O. Pickard-Cambridge). The frame on Fig. 69 refers to the content of Fig. 68.