Uroballus koponeni, Logunov, 2014

Logunov, Dmitri V., 2014, Description of a new species of Uroballus Simon, 1902 (Araneae: Salticidae) from Malaysia, with the longest spinnerets of any known jumping spider, Zootaxa 3894 (1), pp. 183-187 : 184-185

publication ID

https://doi.org/ 10.11646/zootaxa.3894.1.16

publication LSID

lsid:zoobank.org:pub:302046AD-5AA3-4947-9617-17CC68027D9E

DOI

https://doi.org/10.5281/zenodo.6130473

persistent identifier

https://treatment.plazi.org/id/03B2D444-FFD7-FFBE-FF49-FA71FBD14D8B

treatment provided by

Plazi

scientific name

Uroballus koponeni
status

sp. nov.

Uroballus koponeni View in CoL sp. n.

Figs 1–10 View FIGURES 1 – 5 View FIGURES 6 – 10 , Map 1 View MAP 1

Type: Holotype ♀ and 2 immatures ( MHNG) from Malaysia, [Borneo], Sarawak, route Kuching-Serian , nr. Kampong Kuap (ca. 18 km of Kuching), secondary forest, beating, 30 m a.s.l., 13.XII.1987 (C. Lienhard).

Etymology. The species is named in honour of my colleague and friend, Seppo Koponen (Turku, Finland), for his life-long dedication to spiders and on the occasion of his 70th birthday.

Diagnosis. The new species differs from other Uroballus species (cf. Prószyński, 1987: p. 107–108; Żabka, 1985: fig. 638) in having a clearly marked central pocket in the epigyne and by the different relative size and conformation of spermathecal chambers ( Figs 9–10 View FIGURES 6 – 10 ). In addition, this species differs in having dark long hairs covering the entire abdomen, becoming especially dense and long at the rear end and on the spinnerets ( Figs 1–2, 4–7 View FIGURES 1 – 5 View FIGURES 6 – 10 ). Such extremely long spinnerets covered with long hairs are unique within the Salticidae .

Description. MALE unknown.

FEMALE. Measurements. Carapace 1.23 long, 0.91 wide and 0.48 high at PLE. Ocular area 0.67 long, 0.74 wide anteriorly and 0.93 wide posteriorly. Diameter of AME 0.23. Clypeus height 0.04, chelicera length 0.29. Abdomen 1.55 long (with anal tubercle), 0.70 wide. Length of leg segments: I: 0.50 + 0.34 + 0.28 + 0.21 + 0.20 (1.53); II: 0.47 + 0.26 + 0.23 + 0.23 + 0.20 (1.39); III: 0.40 + 0.21 + 0.21 + 0.27 + 0.21 (1.30); IV: 0.63 + 0.29 + 0.35 + 0.29 + 0.24 (1.80). Leg formula: IV,I,II,III. Leg spination. Leg I: Tb v 2-2 -0; Mt v 2-2. Legs II and III: without visible spines. Leg IV: Tb v 1 ap; Mt pr 1ap, v 2 ap. Coloration ( Figs 1–5 View FIGURES 1 – 5 ) is rather pale, and therefore it seems to be a recently molted specimen. Carapace flat, light yellow, with pale grey tinge, which is darker on the thorax ( Figs 1–2 View FIGURES 1 – 5 ); sparsely covered with dark hairs becoming more dense at the rear edge of thorax; black areas around the PLEs and in front of the carapace, behind the eyes of the first row. Sternum and labium light yellow, tinged with grey ( Fig. 3 View FIGURES 1 – 5 ). Chelicerae and maxillae light yellow. Chelicerae with a small, inconspicuous promarginal tooth and a large, fissidentate retromarginal tooth ( Fig. 8 View FIGURES 6 – 10 ). Abdomen unusually long, light yellow; dorsum and sides with a zebra-like grey pattern and transverse rows of dark long hairs ( Figs 1–4 View FIGURES 1 – 5 ). Book-lung covers light yellow. Spinnerets light yellow and long; especially the dorsal spinnerets are long and hairy ( Figs 4–7 View FIGURES 1 – 5 View FIGURES 6 – 10 ), amounting for 50% of the abdominal length. Legs I strongest and thickest (but not the longest ones), light yellow. Legs II–IV light yellow, with grey semi-rings on ventral and prolateral sides of tibiae and metatarsi. Palps entirely light yellow. Epigyne and vulva as in Figs 9–10 View FIGURES 6 – 10 : a narrow central pocket is present; two small and rounded copulatory orifices are widely separated; the spermathecae are simple, two-chambered, with short insemination ducts.

Distribution. The type locality only: Malaysia, Borneo, Kampong Kuap ( Map 1 View MAP 1 ).

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Uroballus

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