Dysderoides typhlos Fage, 1946

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 : 23-26

Dysderoides typhlos Fage

Figures 12 , 14C

Dysderoides typhlos Fage, 1946: 383 , fig. 1a–c

(female holotype from India: Uttarakhand: Dehra Dun: Chakrata Taksil: Moila cave , 8830 ft. alt., 30 ° 46'37"N, 77 ° 47'14"E, Brig. E. Glennie, deposited in BMNH, PBI_OON 00012911 ; examined) .

DIAGNOSIS: The female of D. typhlos resembles that of D. synrang by its large size, well-sclerotized teguments and by having a small dorsal abdominal scutum and two transverse genital plates (figs. 12D, H, 14C), but differs by the T-shaped anterior genital sclerite wider anteriorly, and by the rounded tracheal spiracles (fig. 12E, H). Further, the median incision of the labium is shallower than in other Dysderoides (fig. 12B).

REDESCRIPTION: Female (holotype, PBI_ OON 12911): Total length 2.25. Cephalothorax: Carapace pale orange, pars cephalica almost flat in lateral view; no eye remnants visible. Sternum pale orange, posterior margin not extending posteriorly of coxae IV; setae light, densest laterally. Mouthparts: chelicerae, endites, and labium pale orange. Cheliceral setae dark; paturon inner margin unmodified. Labium anterior margin indented at middle (fig. 12B), the incision of the labium is shallower than in other congeners. Palpal tibia with at least one prodorsal trichobothrium in proximal half. Abdomen: Dorsum soft portions pale white. Book lung covers elliptical. Pedicel tube short, unmodified. Dorsal scutum weakly sclerotized, yellow-brown, without color pattern, covering less than 1/2 of abdomen, less than 1/4 abdomen width, not fused to epigastric scutum, with very narrow median strip covering one third of abdomen length. Postepigastric scutum yellow-brown. Spinneret scutum present, incomplete ring. Dorsum setae dark. Epigastric area dark. Postepigastric area setae dark. Spinneret scutum without fringe of setae. Colulus and spinnerets sunk, barely visible. Legs: Yellow (legs I–III missing). Leg spination (all spines longer than segment width): tibiae IV d0-1-0, p0-0-1, v0-0- 1, metatarsi IV d0-1-0, p1-1-0. Tarsi IV superior claws tooth not examined in detail. Trichobothria not examined. Genitalia: Two procurved transverse well sclerotized plates, the posterior one with lateral, transversely elongated apodemes; anterior sclerite Tshaped; posterior receptacle round; copulatory opening inconspicuous (fig. 14C).

Male: Unknown.

OTHER MATERIAL EXAMINED: None.

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

Figures

Fig. 12. Dysderoides typhlos Fage, female holotype. A. Carapace, dorsal view. B. Same, ventral view. C. Same, lateral view. D. Abdomen, dorsal view (arrows show extent of dorsal scutum). E. Same, ventral view. F. Leg IV, prolateral view. G. Same, detail of metatarsus. H. Epigastric area, ventral view.

Fig. 14. Dysderoides spp. Genital morphology. A. D. muang, new species (PBI_OON 12917). B. D. kanoi, new species (PBI_OON 43176). C. D. typhlos Fage (holotype). D. D. synrang, new species (PBI_OON 30673). A, B. Male palp, retrolateral view. C, D. Vulva, cleared, ventral view. AS = anterior sclerite; GT = glandular tube; PR = posterior receptacle; TP = transverse plates.