The pholcid spiders of Sri Lanka (Araneae: Pholcidae) Author Huber, Bernhard A. text Zootaxa 2019 2019-01-23 4550 1 1 57 journal article 27502 10.11646/zootaxa.4550.1.1 291701d4-652e-440e-adab-f6b0201c0972 1175-5326 2625030 2F7D1EC4-D4ED-4FAE-B227-CF7B79EAE833 Belisana badulla sp. n. Figures 17–22 , 25–26 Belisana Benj 44: Eberle et al. 2018 (molecular data). Huber et al. 2018 : fig. 8. Diagnosis . Easily distinguished from most congeners by curvature of procursus (towards ventral; Figs 17, 19 ); from two Sri Lankan species with similar procursus ( B. keyti Huber, 2005 , B. benjamini Huber, 2005 ) by bulbal apophysis (much larger and wider in B. keyti ; absent in B. benjamini ; compare Figs 22–24 ). Females are difficult to distinguish externally from similar congeners; pockets apparently consistently closer together than in B. keyti (200– 250 µm versus 260–270 µm; compare Figs 25–28 ); internal genitalia with distinctive pore plates (lateral round part with long narrow elongation towards median; Fig. 26 ; similar only in B. keyti ); without pair of internal folds as in B. keyti (cf. Fig. 28 ). Etymology . The specific name is derived from the type locality (noun in apposition). Type material . SRI LANKA : ♂ holotype , ZFMK ( Ar 20001), Central Province , Badulla District , Ohiya ( 6.842°N , 80.885°E ), 1280 m a.s.l. , 16.x.2011 ( S.P. Benjamin ) . Other material examined . SRI LANKA : 2♂ 2♀ , ZFMK ( Ar 20002), and 1♂ 2♀ 6 juvs in pure ethanol, ZFMK ( Benj 44), same data as holotype . 3♀ in pure ethanol, ZFMK ( Benj 46), same locality , 26.v.2012 (S.P. Benjamin, N. Athukorala). 2♂ , ZFMK ( Ar 5199, 5396), Horton Plains [ 6.84°N , 80.81°E ], 7/ 9.iii.2000 ( S.P. Benjamin ) . 1♂ 2♀ , ZFMK ( Ar 20003), Central Province , Nuwara Eliya District , Horton Plains N.P. [ 6.84°N , 80.81°E ], ca. 2000 m a.s.l. , 20–21.ii.2007 ( S. Benjamin , Z. Jaleel ) . 2♂ 4♀ , ZFMK ( Ar 5201), Central Province , Nuwara Eliya District , Peak Wilderness Sanctuary [ 6.82°N , 80.50°E ], 22.ii.2007 ( S. Benjamin , Z. Jaleel ) . 2♂ 6♀ , ZFMK ( Ar 5202), Agrabopath Forest Reserve , Agrapathana [=Agrapatana-Bopathalawa Forest Reserve, 6.843°N , 80.678°E ], vi.2003 ( S.P. Benjamin ) . Description. Male ( holotype ). MEASUREMENTS. Total body length 1.9, carapace width 0.7. Distance PME- PME 140 µm, diameter PME 60 µm, distance PME-ALE 15 µm; AME absent. Sternum width/length: 0.48/0.44. Leg 1: 16.9 (4.2 + 0.3 + 4.1 + 6.7 + 1.6), tibia 2: 2.5, tibia 3: 1.7, tibia 4: 2.4; tibia 1 L/d: 63. COLOR (in ethanol). Entire spider whitish to pale ochre-yellow, abdomen pale gray, legs without dark rings. BODY. Habitus as in B. keyti (cf. Fig. 4 ); ocular area not raised; carapace without median furrow; clypeus and sternum unmodified. CHELICERAE. As in Figs 20–21 , with pair of small apophyses proximally laterally and pair of larger apophyses with hooked tips distally; distance between tips of distal apophyses 0.28. PALPS. Proximal segments very similar to B. keyti (cf. figs 617–618 in Huber 2005); coxa unmodified; trochanter with short apophysis with ventral and retrolateral rounded processes; procursus as in Figs 17–19 , membranous distal elements poorly visible in dissecting microscope; bulb as in Fig. 22 , with distinctive apophysis with curved tip and embolus with subdistal spine-like process. LEGS. Without spines and curved hairs; few vertical hairs (proximally on metatarsi 1 and 2 in higher than usual density); retrolateral trichobothrium on tibia 1 at 12%; prolateral trichobothrium apparently absent on tibia 1; tarsus 1 with ~25 pseudosegments, poorly visible in dissecting microscope. Male (variation). Tibia 1 in 6 other males: 4.3–4.8 (mean 4.5). Female . In general similar to male; tibia 1 in 11 females : 2.9–3.4 (mean 3.1). Epigynum externally very simple, barely distinguishable from surrounding cuticle, with pair of pockets ~200–250 µm apart, pockets in some females not visible in dissecting microscope. Internal genitalia as in Figs 25–26 , with distinctive pore plates consisting of round lateral part and long narrow elongation towards median; Fig. 26 ). Distribution . Known from several high elevation localities in central Sri Lanka ( Fig. 220 ).