Oonopinus corneus, Tong & Li, 2008

Tong, Yanfeng & Li, Shuqiang, 2008, The Oonopid Spiders (Araneae: Oonopidae) From Hainan Island, China, Raffles Bulletin of Zoology 56 (1), pp. 55-66 : 62-64

Oonopinus corneus , new species

( Fig. 6A–D )

Holotype. – Male ( IZCAS), cave without name (18 ° 59'N 108 ° 53'E), Yalong Village , Donghe Town, Dongfang City, Hainan Island, China, coll. Y. Song, X. Han, G. Deng and Y. Tong, 31 Mar.2005.

Diagnosis. – The male of this new species (female unknown) is similar to Oonopinus kilikus Suman, 1965 from Hawaii and Seychelles ( Saaristo, 2001), but can be distinguished by the cone-shaped protuberance on inner side of posterior

THE RAFFLES BULLETIN OF ZOOLOGY 2008

surface of chelicerae, the higher height of clypeus, the dense hairs on dorsal and lateral surfaces of carapace, and the short, thick and upstanding hairs on cymbium of palp.

Description. – Male. Body length 1.44; carapace 0.69 length, 0.48 width; abdomen 0.76 length, 0.50 width. Carapace, sternum pale, legs still paler, abdomen white. Carapace smooth, with densely hairs on dorsal and lateral surfaces. Eyes large, forming almost H-shaped figure. Height of clypeus nearly equally to diameter of ALE. Chelicerae with a coneshaped protuberance on inner sides of posterior surface. Legs with some scattered spines on tibia and metatarsi of leg III and IV. Legs Measurements: I 1.67 (0.53, 0.25, 0.39, 0.33, 0.17); II 1.65 (0.50, 0.25, 0.39, 0.33, 0.18); III 1.32 (0.42, 0.20, 0.25, 0.28, 0.17); IV 1.99 (0.58, 0.27, 0.48, 0.47, 0.19). Leg formula: 4> 1 = 2> 3. Abdomen egg-shaped, without scutum. Colulus indiscernible.

Male palp white except dark brown embolus. Embolus long, thread-like, slightly curved, at base abruptly mesially. Narrow, highly translucent ‘conductor’ running pressed tightly against embolus and up to apex of it. No other accessories at base of embolus. Tibia, especially cymbium with short, thick and upstanding hairs.

Female. Unknown.

Etymology. – Specific name from the Greece “ corn - = hornshaped”, and refers to the cone-shaped protuberance on inner sides of posterior surface of chelicerae.

Figures

Fig. 6. Oonopinus corneus, new species: A, carapace of male, lateral view; B, carapace of male, dorsal view; C, left male palp, prolateral view; D, male chelicerae, posterior view (the arrow refers to the protuberance). Scales: A, B = 0.2 mm, C, D = 0.1 mm.