Cebrenninus magnus Benjamin, 2016

Dhiya'ulhaq, Naufal Urfi, Benjamin, Suresh P., Buchori, Damayanti, Hidayat, Purnama, Scheu, Stefan & Drescher, Jochen, 2025, Expanding the taxonomy of crab spiders (Araneae, Thomisidae) in Sumatra: a new genus, five new species, and regional records, ZooKeys 1241, pp. 205-246 : 205-246

Cebrenninus magnus Benjamin, 2016

Figs 5 , 6

Cebrenninus rugosus Simon, 1887 : Tang and Li 2010: 23, figs 17 A – C, 18 A – E, 19 A – D; Benjamin 2011: 13, figs 5 C, F, 8 B, E, F, 27 A – E, 28 A – F, 29 A – F [misidentifications].

Cebrenninus magnus Benjamin, 2016: 185, figs 6–8, 35–36, 38–45.

Material examined.

Indonesia – Sumatra, Jambi Province • 1 ♂; Sarolangun, Air Hitam, Desa Baru ; 02°01'49.5"S, 102°46'14.8"E; elev. 57 m; 22 Jun. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013_BJ 6.1_AraThom 070 N_001 (to be transferred to MZB) .

Diagnosis.

See Benjamin (2016).

Description.

Male (2013_BJ 6.1_AraThom 070 N_001; Figs 5 , 6 ). Total length 4.28. Carapace length 2.06; width 1.99. Abdomen length 2.22; width 1.74. Diameter of eyes: AME 0.06; ALE 0.18; PLE 0.14; PME 0.07. Interdistances between eyes: AME – AME 0.16; AME – ALE 0.18; ALE – ALE 0.58; PME – PME 0.22; PME – PLE 0.33; ALE – PLE 0.20; AME – PME 0.21; PLE – PLE 0.85. Leg measurements: leg I 8.42 (2.56, 0.60, 2.79, 1.91, 0.56); leg II 9.48 (2.76, 0.61, 2.97, 2.03, 1.11); leg III 6.10 (1.80, 0.50, 1.62, 1.41, 0.77); leg IV 6.20 (1.75, 0.52, 1.67, 1.46, 0.80). For complete description, see Benjamin (2011) and Tang and Li (2010) under Cebrenninus rugosus Simon, 1887 .

Distribution.

China; Laos; Thailand; Indonesia (Sumatra: Jambi Province, new record; Java); Malaysia (Borneo) Fig. 29 .

Figures

Figure 5. Cebrenninus magnus Benjamin, 2016, male (2013 _ BJ 6.1 _ AraThom 070 N _ 001) A, B habitus A dorsal view B ventral view C eye region, frontal view D – F left Palp D prolateral view E ventral view F retrolateral view. Scale bars: 1 mm (A, B); 0.5 mm (C); 0.2 mm (D – F).

Figure 6. Cebrenninus magnus Benjamin, 2016, male (2013 _ BJ 6.1 _ AraThom 070 N _ 001) A, B left Palp A ventral view B retrolateral view. Abbreviations: C = conductor; E = embolus; RTA = retrolateral tibial apophysis. Scale bars: 0.2 mm.

Figure 29. Distribution of examined Thomisidae species from the Epidius clade (sensu Benjamin, 2011) prior to the present study, as well as the sampling location of the current study in Jambi Province, Sumatra, Indonesia (green flag). The new genus and the five new species described in the present study are all from the same study location, i. e., a replicated plot design across lowland rainforest, ‘ jungle rubber’ (rubber agroforestry), and smallholder monoculture plantations of rubber and oil palm in Jambi’s lowlands (Drescher et al. 2016).