Cebrenninus rugosus Simon, 1887

SURESH P. BENJAMIN, 2011, Phylogenetics and comparative morphology of crab spiders (Araneae: Dionycha, Thomisidae), Zootaxa 3080, pp. 1-108 : 13

* Cebrenninus rugosus Simon, 1887

Figs 5 C,5F, 8B, 8E, 8F, 27A–E, 28A–F, 29A–F

Cebrenninus rugosus Simon, 1887: 468 . Simon 1897a: 9, figs 1–2.

Libania armillata Thorell, 1890b: 149 , types unavailable for study. Synonymized by Simon, 1897a: 9. Cupa kalawitana Barrion and Litsinger, 1995: 208 , figs 119a–f. Holotype not examined. Synonymized by Tang et al. (2009).

Type material: Lectotype of Cebrenninus rugosus : male, no more data given, MNHN 8652/1572, examined.

Other material examined. THAILAND: Southern Isaan: 2 females, Khao-Yai National Park, 750 m, 26 July 1962, E. S. Ross and D. Q. Cavagnar ( CAS). Chiang Mai Province: 1 male, near Chiang mai, Doi Suthep, 1150 m, 30 November 1996, P. Schwendinger ( MHNG). Chumphon Province: 1 male 1female, near border Lang Suan-Phato Distr. Khao Kai Jae Waterfall, 80 m, semi evergreen rainforest, 21–22 August 2004, P. Schwendinger ( MHNG). INDONESIA: Sumatra Barat: 1 female, Mangani, Mine near Kota Tinggi, 700 m, 21 July 1983, Edward S. Ross ( CAS).

Diagnosis. This is the most common and widely distributed species of the genus. Males are separated by the long tapering E and MA. Females are separated by the round anteriorly boarded CO ( Figs 27 A–E), and the lack of a narrow MR, which is present in C. srivijaya sp. nov.. Further, this species can also be easily separated by the presence of PME, which is lacking in C. srivijaya sp. nov., the only other illustrated species of the genus.

Variation. The specimens examined show some variation in the shape RTA, E and MA ( Figs 27 B, 27C; Tang & Li 2010; Tang et al. 2009).

Distribution. China, Indonesia, Philippines, Singapore, Thailand. Its presence is predicted in Burma, Vietnam and possibly in North India.

Remarks. Libania is regarded by Lehtinen (2002) as a synonym of Cebrenninus . The variation in the male genitalia of the specimens examined (but not the corresponding female genitalia) might suggest that more than one species is involved.

Figures

FIGURE 5. Photographs of Thomisidae. A Borboropactus bituberculatus (MNHN 5460 / 1572); B Borboropactus squalidus (MNHN 5045 / 1572); C Cebrenninus rugosus (MNHN 8652 / 1572), prosoma; D Stephanopis cambridgei (SMNH 1163); E lectotype of Pharta bimaculata (SMNH 1167); F C. rugosus, opisthosoma; G S. cambridgei (SMNH 1163), epigynum; H Epidius lyriger (13705); I Epidius rubropictus (MNHN 22347).

FIGURE 27. Cebrenninus rugosus. A, B male from Thailand (MHNG), left palp (A ventral, B retrolateral); C male palp, retrolateral view (lectotype MNHN 8652 / 1572); D, E female from Thailand (D epigynum, ventral view, E vulva, dorsal view). Scale bars = 0.1 mm (E, D) 0.2 mm (C), 0.5 mm (A, B).