Dysderoides lawa Grismado and Deeleman, 2014

Grismado, Cristian J., Deeleman, Christa, Piacentini, Luis N., Izquierdo, Matías A. & Ramírez, Martín J., 2014, Taxonomic Review Of The Goblin Spiders Of The Genus Dysderoides Fage And Their Himalayan Relatives Of The Genera Trilacuna Tong And Li And Himalayana, New Genus (Araneae: Oonopidae), Bulletin of the American Museum of Natural History 2014 (387), pp. 1-108 : 23

Dysderoides lawa Grismado and Deeleman , new species

Figure 11

TYPES: Female holotype from Thailand: Kanchanaburi Province: Tham Lawa, Ban Nam , near Tok , June 16, 1986, P. Leclerc ( RMNH PBI_OON 43183 ).

ETYMOLOGY: The specific name is a noun in apposition taken from the type locality.

DIAGNOSIS: Female are similar to the other known Thai species by having a single transverse plate on the female genitalia, but can be distinguished by the smaller and thinner posterior receptacle (fig. 11H).

DESCRIPTION: Female (holotype, PBI_ OON 43183). Total length 1.52. Cephalothorax: Carapace yellow-brown. Sternum yellow-brown, posterior margin not extending posteriorly of coxae IV; setae light, densest laterally. Mouthparts: chelicerae, endites, and labium yellow-brown. Cheliceral setae light. Abdomen: Dorsal scutum absent, dorsum soft portions pale white. Book lung covers round. Pedicel tube short, unmodified. Postepigastric scutum yellow-brown. Spinneret scutum absent. Dorsum setae light. Epigastric area setae light. Postepigastric area setae light. Legs: Yellow-brown (legs III–IV paler, almost white). Leg spination (all spines longer than segment width): leg I: tibiae v2-2-2-2-0, metatarsi v2-2-0; leg II: tibiae v2-2-2-2-0, metatarsi v2-2-0; leg III: tibiae p1-0, v2subap; leg IV: tibiae v1-1- 2subap, metatarsi p1, r1. Tarsi I–IV superior claws tooth not examined in detail. Genitalia (fig. 11H): Anterior sclerite narrow, slightly sinuous; connection with the posterior receptacle without visible structures, receptacle elongated, nearly piriform. Copulatory opening not visible, only the posterior transverse epigastric plate is present, with lateral endings at same level as semicircular-outlined apodemes, not directed forwardly.

Male: Unknown.

OTHER MATERIAL EXAMINED: None.

DISTRIBUTION: Known only from a single cave in the type locality.

Figures

Fig. 11. Dysderoides lawa, new species, female (PBI_OON 43183). A. Habitus, dorsal view. B. Same, ventral view. C. Same, lateral view. D. Carapace, dorsal view. E. Same, ventral view. F. Same, lateral view. G. Epigastric area, ventral view. H. Vulva, cleared, ventral view.