Opisthoncus tenuipes (Keyserling, 1882)

Gardzińska, Joanna & Żabka, Marek, 2013, Redescription of the genus Opisthoncus L. Koch, 1880 (Araneae: Salticidae), Zootaxa 3717 (4), pp. 401-447 : 442-444

publication ID

https://doi.org/ 10.11646/zootaxa.3717.4.1

publication LSID

lsid:zoobank.org:pub:55248289-2E05-4F07-BFC7-99AFED7D4E93

DOI

https://doi.org/10.5281/zenodo.6154093

persistent identifier

https://treatment.plazi.org/id/F45B8781-332B-FF86-94D0-FC23B3EBF81F

treatment provided by

Plazi

scientific name

Opisthoncus tenuipes (Keyserling, 1882)
status

 

Opisthoncus tenuipes (Keyserling, 1882) View in CoL

( Fig. 29 View FIGURE 29 )

Hyllus tenuipes: Keyserling 1882: 1342 .

Opisthoncus tenuipes: Simon 1903: 826 , 828, 829; Żabka, 1991: 47.

Type material. 1 M, 1 juv. Syntypes, ZMH, Mus. Godeffroy 8640, Australia: Brisbane [Queensland].

Diagnosis. Male cheliceral promargins with distal tooth larger than the proximal one, retromargins unidentate ( Fig. 29 View FIGURE 29 F). Frontal male cheliceral surface with sclerotized ridge, terminating with vestigial spur ( Fig. 29 View FIGURE 29 E). Ventral spurs teeth-like, enlarged and located near fangs, the latter with dorsal and external outgrowths ( Fig. 29 View FIGURE 29 F). Differs from other species mainly by armament of male chelicerae (as above) and palpal organ structure, with embolus short, arising at 12 o’clock and retrolateral tibial apophysis dorsally bent. Abdomen with colour pattern similar to the females of O. abnormis and O. keyserlingi .

Description. Male ( Fig. 29 View FIGURE 29 ) about 5 mm long. Cephalothorax moderately round and high (CW = 85% of CL, CH = 53% of CL), brown, eye field lighter and covered with pallid scales ( Figs 29 View FIGURE 29 B–C). Surrounding of eyes black, except of AME, which are brown. Clypeus moderately narrow, pale brown, clothed in scattered pallid scales and setae ( Fig. 29 View FIGURE 29 E). Chelicerae brown, with armament as in diagnosis. Maxillae and labium dark brown with yellow anterior margins. Sternum relatively narrow, orange ( Fig. 29 View FIGURE 29 D). Abdomen elongate, yellow-brown, with herring-bone pattern on brownish background as in Fig. 29 View FIGURE 29 B. Venter yellowish, darker on sides, with elongate stripes of small orange dots ( Fig. 29 View FIGURE 29 D). Spinnerets yellow. Palpal organ ( Figs 29 View FIGURE 29 G–J) yellow, with brown cymbium, tegulum relatively narrow, embolus short, embolus located anteriorly, translucent part of spermophore not meandering, tibia makes 69% of cymbium length, retrolateral tibial apophysis hooked.

Dimensions. CL 2.20, CW 1.88, CH 1.16, AEW 1.64, PEW 1.88, EFL 1.16, AL 2.76, AW 1.40, L1 7.92 (2.04+1.60+2.12+1.40+0.76).

Female unknown.

Remark. Referring to the original illustrations by Koch and Keyserling, it is likely that O. teniupes and O. abnormis represent single species. However, because of lacking the male type specimen of O. abnormis , this has to be verified on new material.

chelicera); F: chelicera, ventral view; G–J: palpal organ, ventral and retrolateral views. Scale bars B–C: 1 mm; H, J: 0.25 mm.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Opisthoncus

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF