Distributional and taxonomic notes on the crab spider genus Epidius with descriptions of five new species (Araneae: Thomisidae) Author Benjamin, Suresh P. text Journal of Natural History 2017 2017-03-24 51 9 - 10 469 485 http://dx.doi.org/10.1080/00222933.2017.1302016 journal article 10.1080/00222933.2017.1302016 1464-5262 5184385 15B56D3E-69FB-46CD-8AFE-34919B844D14 Epidius elongatus sp. nov. ( Figures 2 (c) and 4(b)) Type material Holotype . Male from Thailand , Nakhon Ratchasima Province , Khao Yai National Park [ 14° 26 ʹ 29N , 101°22 ʹ 11E ], 800 m , 26 December 1988 , leg. C. L. and P. R. Deeleman (RMNH. ARA.15906). Figure 3. Epidius coloratus sp. nov. RMNH 15921. (a) Male palp, ventral view. (b) Same, retrolateral view. Scale bars = 0.2 mm. Etymology Refers to the rather elongated body and legs of the holotype . Diagnosis Distinguished from other known congeners by distinctive shape of E (large, stout, hooklike, tapered fine tip; Figure 4 (b)), C (triangular, blunt tip; Figure 4 (b)), lack of a MA and the leaf-shaped RTA ( Figure 4 (b)). Description Male. Total length: 4.5; prosoma length: 2.1, width: 1.5. Leg I: femur 3.9, patella 0.9, tibia 3.9, metatarsus 2.8. tarsus 1.2, Prosoma light brown/yellow, eye regions darker, without prominent markings or conspicuous setae. Opisthosoma with white spots, dorsally with a dark brown folium and spots. ALE> PLE> PME> AME. AER, PER recurved, eyes on brown-coloured mounds, but not touching. Leg formula 1243. Palps as in Figure 4 (b), femur and tibia characteristically elongated, femur as long as tibia, furnished with 3 thick spines and MTr. RTA present, leaf-shaped. Bulbus ovoid. C triangular, stout tip without serration. MA absent. Embolus large, stout, C-shaped, tapered tip ( Figure 4 (b)). SDT with an inward turn just below the embolic base ( Figure 4 (b)). Figure 4. Epidius floreni sp. nov. RMNH 15,913 (a), same RMNH 15,916 (c, d) and Epidius elongatus sp. nov. RMNH 15,906 (b). (a, b) Male palp, ventral view. (c) Epigynum, ventral view. (d) Vulva, ventral view. Scale bars = 0.2 mm. Female. Unknown. Natural History Extracted from label: ‘in dead Pending leaf in dense extended cocoon’. Distribution Known only from the type locality.