Epidius elongatus Benjamin, 2017

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

Epidius elongatus Benjamin, 2017

Figs 13 C , 14

Epidius elongatus Benjamin, 2017 b: 474 , figs 2 C, 4 B.

Material examined.

Indonesia – Jambi Province • 1 ♂; Sarolangun, Air Hitam, Desa Baru ; 02°00'56.8"S, 102°45'12.6"E; elev. 64 m; 23 Jun. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013_BJ 4.1_AraThom 071 N_001 (to be transferred to MZB) .

Diagnosis.

See Benjamin (2017 b).

Description.

Male (2013_BJ 4.1_AraThom 071 N_001, Figs 13 C , 14 ). Total length 3.95. Carapace length 1.87; width 1.53. Abdomen length 2.08; width 1.31. Diameter of eyes: AME 0.06; ALE 0.14; PLE 0.11; PME 0.08. Interdistances between eyes: AME – AME 0.07; AME – ALE 0.05; ALE – ALE 0.26; PME – PME 0.10; PME – PLE 0.10; ALE – PLE 0.11; AME – PME 0.23; PLE – PLE 0.47. Leg measurements: leg I 11.66 (3.41, 0.62, 3.72, 2.64, 1.27); leg II 11.13 (3.31, 0.62, 3.57, 2.46, 1.17); leg III 5.63 (1.75, 0.41, 1.61, 1.27, 0.59); leg IV 6.21 (1.91, 0.46, 1.81, 1.45, 0.58). Carapace pale yellow, with a reddish brown wide median band running from the cephalic groove across the eyes, splitting just after them, continuing to the chelicerae. Legs faintly striated. Abdomen with a pair of white longitudinal bands. For a complete description, see Benjamin (2017 b).

Distribution.

Thailand; Indonesia (Sumatra: Jambi Province (new record) Fig. 29 .

Figures

Figure 13. A, B, D, E Crockeria neofelis Dhiya’ulhaq & Benjamin, sp. nov A, B male (holotype 2013 _ BJ 5.2 _ AraThom 007 N _ 001), left palp A ventral view B retrolateral view D, E female (paratype 2013 _ BJ 5.2 _ AraThom 007 N _ 002), epigynum D ventral view E dorsal view C Epidius elongatus Benjamin, 2017, male (2013 _ BJ 4.1 _ AraThom 071 N _ 001), left palp, ventral view. Abbreviations: C = conductor; CO = copulatory opening; E = embolus; FD = fertilisation duct; MA = median apophysis; RTA = retrolateral tibial apophysis; S = spermatheca; W = epigynal window. Scale bars: 0.2 mm (A, B); 0.5 mm (C), 0.1 mm (D, E).

Figure 14. Epidius elongatus Benjamin, 2017, male (2013 _ BJ 4.1 _ AraThom 071 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 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).