Euwintonius bismarckensis
Euwintonius bismarckensis dorsal
Euwintonius bismarckensis Ponting, 2015 (from Suzuki, 1982c)











Euwintonius bismarckensis Ponting, 2015 is a member of the genus Euwintonius (Laniatores:Assamiidae).


  • E.insulanus. Suzuki, 1982:209 (primary junior homonym of E.i. Roewer, 1940)
  • E.b. Ponting, 2015:450 (Replacement name)



(from Suzuki, 1982c[1])

  • Measurements (in mm): Total length of body 3.1; width of body at widest part 1.6; length of legs 9.0, 16.7, 11.0, 15.3; length of femurs 2.3, 4.6, 3.1, 4.6.
  • Dorsum As in fig. 79. Five spines arising from anterior margin below of the carapace of similar size. Carapace smooth. Eye tubercle low, median only slightly depressed, unarmed except for two or three small granules above each eye. First to fourth areas, hind margin of scute and free tergites with a row of small granulations. Lateral ridges of scute also with a row of small granules.
  • Venter Surface of first coxa with a row of coarse tubercles, and two enlarged teeth, one of which of bizarre contour, on the front edge. Second and third coxae with small tubercles, tubercles mostly confined to proximal region; a row of small humps present on anterior and posterior edges of the third. Fourth smooth, some coarse teeth on the retrolateral edge. Spiracles concealed. Genital plate and free sternites smooth, only hairy.
  • Chelicerae Proximal segment with a distodorsal protuberance, which furnished with a few small irregular granules; second unarmed, smooth.
  • Palpi As shown in Figs. 81-83. Femur bears a short distal median spine.
  • Legs Slender and relatively long. Femora of all legs straight. Femora, patellae and tibiae with minute setaceous tubercles. Tarsal segments 5:12-15:6:6-7. Distitatsi of first and second tarsi are 3 and 4 segments respectively.
  • Coloration Entire animal pale to rusty yellow. Carapace reticulated with brown. Scutal region and free tergites darker. Sides of 1·4 scutal areas and fifth scutal groove marked with a s~ries of small light rusty yellow flecks. Coxae of legs somewhat reticulated, free sternites yellowish brown. Chelicerae and palpi reticulated. Trochanters, femora and patellae of legs yellowish brown.


  • Male unknown
  • Location: Bismarck Archipelago (New Britain)



  1. 1.0 1.1 Suzuki, S. (1982c) Contributions to the taxonomy and zoogeography of the Opiliones of the Philippines, Bismark and Solomon Islands. With an appendix on some related species from the Moluccas and Sumatra. Steenstrupia 8(8):181–225.
  2. Ponting, J. (2015) Replacement name for Euwintonius insulanus Suzuki, 1982 (Opiliones: Laniatores: Assamiidae: Dampetrinae), primary junior homonym of E. insulanus Roewer, 1940. Zootaxa 3925(3):450

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