Xyphinus deelemanae, Kranz-Baltensperger, 2014

Kranz-Baltensperger, Yvonne, 2014, The goblin spider genus Xyphinus (Araneae; Oonopidae), Zootaxa 3870 (1), pp. 1-79 : 37-41

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Xyphinus deelemanae

sp. nov.

Xyphinus deelemanae sp. nov.

( Figs 29-32 View FIGURE 29 View FIGURE 30 View FIGURE 31 View FIGURE 32 ; map 3 View MAP 3 )

Type material. Holotype: male ( PBI _ OON 00032567 ) MALAYSIA: Sarawak, Mulu National Park , 100 km SEE of Miri, N 4°00’, E 14°49’, 200 m; 19.–24.VIII.2003, leg. A. Schulz (Winkler-extraction), MHNG GoogleMaps . Paratypes: 1 male and 1 female ( PBI _ OON 12540 View Materials ), collected with holotype, MHNG GoogleMaps . 2 females ( PBI _ OON 00031876 ), MALAYSIA: Sarawak, Miri , Niah, N.P., primary forest on limestone, leaf litter, 16.IV.1998, leg C.L. Deeleman, RMNH .

Etymology. The specific name is a patronym in honor of Christa Deeleman, who collected and described countless oonopid specimens.

Diagnosis. With its strongly projecting abdomen X. deelemanae sp. nov. is similar to X. gibber and X. montanus , but can be distinguished from both by the presence of microsculpture on the palpal patella and tibia and the long apophysis ( Fig. 30A–H View FIGURE 30 ). The female epigastric area consists of a short triangular protrusion ( Figs 31B, E, F View FIGURE 31 ; 32A–D View FIGURE 32 ).

Description. Male. Total length 1.70 mm. Carapace: Orange-brown, broadly oval in dorsal view, slightly elevated in lateral view, anteriorly narrowed to 0.49 times its maximum width or less, with angular posterolateral corners, posterolateral edge without pits, anterolateral corners with slightly sclerotized triangular projections, posterolateral surface without spikes ( Fig. 29A, B, E View FIGURE 29 ), surface of pars cephalica and sides smooth, fovea present. Lateral margin with tiny, blunt denticles. Clypeus: Straight in frontal view, sloping forward in lateral view, high, ALE separated from edge of carapace by their radius or more ( Fig. 29E View FIGURE 29 ). Eyes: PME largest, ALE and PLE oval, PME squared. Posterior eye row straight from above, procurved from front. ALE separated by their radius to diameter, ALE and PLE separated by less than ALE radius, PLE and PME separated by less than PME radius, PME touching ( Fig. 29A, E View FIGURE 29 ). Sternum: As long as wide, sickle-shaped structures not touching. Radial furrows opposite coxae III absent. Surface smooth. Mouthparts: Chelicerae slightly divergent, with swelling on anterior face, setae evenly scattered, promargin with microsculpture ( Fig. 29G, H View FIGURE 29 ). Labium rectangular, indented at middle, with 3-5 setae on anterior margin. Abdomen: Frontally strongly narrowed, overlapping carapace, almost reaching highest point of carapace ( Fig. 29B View FIGURE 29 ). Book-lung covers narrow ovoid and elongated. Scuto-pedicel region with one Wshaped and three slightly oval and elevated scutal ridges with elongated setae ( Fig. 29B, D, F View FIGURE 29 ). Dorsal scutum orange brown, middle surface and sides smooth, anterior half with projecting blunt denticles ( Fig. 29A, B View FIGURE 29 ). Dorsal scutum embedding narrow tip of abdomen ( Fig. 29B, D View FIGURE 29 ). Epigastric scutum not protruding. Postepigastric scutum without short posteriorly directed lateral apodemes. Posterior spiracles connected by groove. Legs: Metatarsi of legs III and IV with harpoon-like hairs. Tibia with three, metatarsi with one trichobothria each. Genitalia: Sperm pore large, situated at level of anterior spiracles. Trochanter normal size, unmodified. Femur one to two times as long as trochanter, attaching to patella subbasally; patella shorter than femur, with microsculpture on prolateral surface, tibia one and a half times as long as patella, with microsculpture on prolateral side, with three trichobothria. Cymbium pale orange, ovoid in dorsal view, not fused with bulb, bulb pale orange, 1 to 1.5 times as long as cymbium, distal part of bulb strongly sclerotized. Thin, membranous ribbon retrolaterally, as long as bulb. Roundish, membranous apophysis prolaterally. Dark, sclerotized structure visible in between ( Fig. 30A–H View FIGURE 30 ).

Female. Total length 1.89 mm. Carapace: Fovea absent. Clypeus vertical in lateral view. Mouthparts: Anterior face of chelicerae with small swelling ( Fig. 31C View FIGURE 31 ). Female palp spineless, femora with two strong, spine-like hairs ventrally, tibia with three trichobothria and few stronger setae prolaterally. Abdomen: Epigastric scutum strongly protruding ( Fig. 31C View FIGURE 31 ). Genitalia: Epigastric furrow narrow. Dark, sclerotized, triangle-shaped, strongly protruding structure visible, slightly elongated posteriorly ( Figs 31B, E, F View FIGURE 31 ; 32A–D View FIGURE 32 ).


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