S. Mahunka szerk.: Folia Entomologica Hungarica 62. (Budapest, 2001)

sider the fact that e.g. on one specimen the genital setae are reduced (3+2) but on one of the plates a close scrutiny may reveal the 3rd (posterior) genital setae too, while on the other specimen this malformation is apparent in the case of the adanal setae. The description and the terminology applied in this contribution follow those of my previous papers (cf. Mahunka 1994). DESCRIPTION Truncopes sinaraja sp. n. Measurements — Length of body (female): 360-397 urn; width of body: 149-176 urn. Prodorsum: Rostral part of the prodorsum wide, rostrum rouded, without apex. Lamellae well developed, but not longer than the half length of prodorsum. Prodorsal setae long, well ciliate, rostral and lamellar ones setiform, with fine distal end. Interlamellar setae blunter at tip. Rostral and lamellar setae nearly equal in length. Head of sensillus bean-shaped, uncovered, a short part of pedicel also free. Surface of prodorsum punctate, they are smaller basally, larger anteriorly (Fig. 1). Lateral part of prodorsum: A thin, fine, arched prelamella present (Fig. 5), sublamella absent. Prelamella running to the anterolateral margin of prodorsum, bearing on its apex the rostral seta. Circumpedal carina well developed but reaching to the lateral margin of the ventral plate. Notogaster: narrow, long and conspicuously flat. Pteromorphae well protruding anteriorly and laterally, they seem to be angular (Fig. 7). Anterior notogastral tectum excavated. Notogastral surface distinctly punctate. Four pairs of comparatively small sacculi present, Sa elongated, others rounded. Notogastral setae short, simple, distally sligthly curved. Ventral side (Fig. 2): Epimeral setal formula 3-1-2-2(7). Seate lb much longer than the others, directed forwards and reaching to the mental tectum. Surface of pedotecta I and epimeral region punctate. Pedotecta 2-3 rounded laterally. Anogenital setal formula (Fig. 3) 3(2)—1—2— + (2). Genital and aggenital setae very short, all others very long, not clearly flagellate (Fig. 6). A punctate sculpture observable on the ventral plate and on the anal plates Legs: Typical for the genus. All legs tridactylous. Femur II with a wide blade-like formation ventrally (Fig. 4), punctate field is present also here. Material examined — Holotype: Sri Lanka, Ratnaputra District, Sinaraja Forest Reserve, Weddagala. 7. 03. 2000. Leg. S. Mahunka and L. Mahunka-Papp. 1 paratype from the same sample. Holotype (1660-HO-01) and paratype deposited in the Hungarian Natural History Museum, Budapest, with identification numbers of the specimens in the Collection of Arachnida. Remarks — On the basis of the anogenital setal formula (three pairs of genital and three pairs of adanal setae), the new species must belong to the the genus Truncopes Grandjean, 1956. The species of the genus distributed — excepting the Palaearctic and the Austral Region — in all zoogeographical regions. The new species is well characterised by its very narrow and flat body, the punctate dorsal and ventral surface, and the long, but not flagellate ano-adanal setae. It stands nearest to Truncopes canagaratnami Balogh, 1970 and T. orientális Mahunka, 1987 species, but the new species is distinguished from both by the much narrower and flatter body, and by the long but the not flagellate ano-adanal setae. Etymology — Named after its origin (the Sinaraja Forest Reserve).