Reddyanus jayarathnei Kovarik 2016, sp. n.
Creators: name: Kovařík, František
name: Lowe, Graeme
name: Ranawana, Kithsiri B.
name: Hoferek, David
name: Š, V. A.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Scorpiones
Buthidae
Reddyanus
Reddyanus jayarathnei

description: Reddyanus jayarathnei Kovařík, sp. n.
(Figs. 14, 206, 215–216, 231–232, 248, 257, 334–357, 415–416, 569, Tables 4–5)
http://www.zoobank.org/urn:lsid:zoobank.org:act:F E1515A9-8302-46D4-8298-11BFB4555882
TYPE LOCALITY AND TYPE REPOSITORY. Sri Lanka, Galle district, Kanneliya Rain Forest, 06°15'04" N 80°20'18" E; UPSL.
TYPE MATERIAL. Sri Lanka, Galle District, Kanneliya Rain Forest, 06°15'04" N 80°20'18" E (Fig. 357), 1♂ (holotype, Fig. 356) 1♀ (paratype, Fig. 355), UPSL, 1♂ (paratype, Figs. 206, 215, 231, 248, 257, 334–335, 338, 340, 343–351, 415, 569) 1♀ (paratype, Figs. 216, 232, 336–337, 339, 341–342, 352–354, 416), FKCP, V.– XI.2015, leg. S. Jayarathne.
ETYMOLOGY. Named after V. A. Sanjeewa Jayarathne who collected the types.
DIAGNOSIS. Total length 37.1 mm (female) – 45.5 mm (male). Male with slightly longer metasomal segments and telson than female. Pedipalp segments approximately the same length and width in both sexes. Pedipalp movable finger longer than manus of chela in both sexes. Pedipalps and legs with brown maculation, identical on femur and patella. First metasomal segment bears 10 carinae, second through fourth segments bear eight carinae, fifth segment bears five carinae in female and three to five in male. Posterior terminal tubercle of each dorsal carina on metasomal segments of both sexes scarcely larger than preceding tubercles. Subaculear tooth wide and rounded, dorsally with granules in four rows; six symmetrical granules in three rows and one or two granules on tip. Ratio of metasomal segment II length/ width 1.81 in male. Glabrous zone on posterior part of fifth sternite present medially in male. Pectinal teeth number 12 in female, 14 in male.
DESCRIPTION. Total length 37.1 mm (female paratype) – 45.5 mm (male holotype). The habitus is shown in Figs. 334–337. For measurements and ratios see Tables 4–5. For position and distribution of trichobothria of pedipalps see Figs. 344–348. The male has slightly longer metasomal segments and telson than the female (Figs. 349– 354).
Coloration (Figs. 334–337). Entire mesosoma and carapace dark, almost black with yellow to reddish spots. Chelicera strongly reticulated, with spotted fingers. Pedipalps dorsally and laterally reddish, with brown to black spots, identical on femur and patella. Pedipalp chela fingers reddish black. Legs with same color and pattern as pedipalp femur and patella. Metasomal segments reddish brown with the spots. Telson reddish brown with spots.
Mesosoma and carapace (Figs. 338–341). Carapace without carinae but with large granules. Mesosoma with one granulated median carina. Tergite VII pentacarinate. Fifth sternite with glabrous zone on posterior medial part in the male. Seventh sternite with four incomplete carinae, sparsely granulate. Pectinal tooth count is 12 in the female, 14 in the male. Pectines with three marginal lamellae and seven middle lamellae. The lamellae bear numerous pale setae.
Metasoma and telson (Figs. 215–216, 349–354, 415– 416). The first metasomal segment bears 10 carinae and the second to the fourth segments bear eight carinae, the fifth segment bears five carinae well developed in the female and only indicated or absent in the male. Lateral inframedian carinae may be indicated on second metasomal segment. Ventral carina present on telson. Intercarinal surfaces of metasoma granulated including dorsal surface mainly in the female. In both sexes, posterior terminal tubercle of each dorsal carina on metasomal segments not enlarged. Telson elongate, with subaculear tooth wide and rounded, dorsally with granules in four rows; six symmetrical granules in three rows and one or two granules on the tip.
Pedipalps (Figs. 231–232, 342–348). Femur and patella only very sparsely hirsute, with complete carinae, granulated. Dorsal carinae indicated on chela manus in both sexes. Sixth row of granules on movable finger with one external granule. The seventh row of granules on the fixed finger without additional granules.
Legs (Fig. 206). Femur and patella bear complete carinae and are granulated. Legs hirsute without bristle combs.
AFFINITIES. The described features distinguish R. jayarathnei sp. n. from all other species of the genus. R. jayarathnei sp. n. is well characterized by the glabrous zone on the posterior medial part of the fifth sternite in the male, which is not as extensive in R. ranawanai sp. n. (Fig. 570 versus Fig. 569) and is absent in other Sri Lankan Reddyanus species (Figs. 567–568).
description: Published as part of Kovařík, František, Lowe, Graeme, Ranawana, Kithsiri B., Hoferek, David & Š, V. A., 2016, Scorpions of Sri Lanka (Scorpiones Buthidae, Chaerilidae, Scorpionidae) with description of four new species of the genera Charmus Karsch, 1879 and Reddyanus Vachon, 1972, stat n, pp. 1-133 in Euscorpius 220 on pages 66-76, DOI: 10.18590/euscorpius.2016.vol2016.iss220.1, http://zenodo.org/record/7124466