Isometrus (Isometrus) thurstoni Pocock, 1893

Kovařík, František, 2003, A review of the genus Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) with descriptions of four new species from Asia and Australia, Euscorpius 10 (10), pp. 1-19 : 4

Isometrus (Isometrus) thurstoni Pocock, 1893

Isometrus thurstoni Pocock, 1893a: 297 ; Kraepelin, 1895: 89; Kraepelin, 1896: 126; Kraepelin, 1899: 67; Pocock, 1900: 47; Kraepelin, 1908: 190; Kraepelin, 1913: 135; Mello-Leitao, 1934: 8; Takashima, 1945: 86. Isometrus (Isometrus) thurstoni: Vachon, 1972: 177 ; Vachon, 1976: 38; Vachon, 1982: 90; Kovařík, 1997a: 8; Kovařík, 1998b: 111; Fet & Lowe, 2000: 150.

Isometrus (Raddyanus) thrustoni: Tikader & Bastawade, 1983: 273 .

? = Isometrus (Closotrichus) sankariensis Tikader & Bastawade, 1983: 311 . Syn. n.

Isometrus (Isometrus) sankariensis: Kovařík, 1994: 201 ; Kovařík, 1997a: 8; Kovařík, 1998b: 111; Fet & Lowe, 2000: 150.

TYPE LOCALITY AND TYPE REPOSITORY. India, Sheveroy Hills ; BMNH.

TYPE MATERIAL EXAMINED. India, Sheveroy Hills , 1♂ (lectotype hereby designated), leg. Edgar Thurston, BMNH No. 1891.5.22.1 .

OTHER MATERIAL EXAMINED. India, S. Coorg , III.1952, 1♂, leg. P. Susai Nathan, CASC ; Tamil Nadu State, Karikal, Tanjore District , 20.IV.1951, 2♀ (im.) (det.?), leg. P. Susai Nathan, CASC ; Tamil Nadu State, Karikal, Terrotory, Kurumbagaram , I.1954, 1♂, leg. P. Susai Nathan, CASC ; Nilgiri Hills, Singora , 30.IX.1953, 1♀, leg. P. Susai Nathan, CASC ; Nilgiri Hills, Singora , 23.V.1954, 1♀, leg. P. Susai Nathan, CASC ; M Cgiri Hills, Singora , 30.IV.1954, 1♀, CASC ; Tamil Nadu State, Shevary Hills, Yercaua , 3.VII.1954, 1♀, 16.VII.1954, 1♂, II.1955, 1♂ 1♀, 24.II.1955, 1im., leg. P. Susai Nathan, CASC ; Tamil Nadu State, Coimbatore , VI.1958, 1♀ (im.), leg. P. Susai Nathan, CASC ; Tamil Nadu State, Coimbatore , XI.1961, 1♂ (im.), leg. P. Susai Nathan, FKCP ; Karnataka State, Mysore , 10 mi. SW Shimoga, 600 m., 19.II.1962, 1♀ 15juvs before first ecdysis, leg. E. S. Ross & D. Q. Cavagnaro, CASC ; Karnataka State, Mysore , 8 mi. W Hunsur, 800 m., 21.II.1962, 1♀ leg. E. S. Ross & D. Q. Cavagnaro, CASC ; Karnataka State, Mysore , 12 mi. E Virajpet, 850 m., 24.II.1962, 1♀, leg. E. S. Ross & D. Q. Cavagnaro, CASC ; Karnataka State, Mysore , 2 mi. NW Punjur, 850 m., 13.III.1962, 1♀, leg. E. S. Ross & D. Q. Cavagnaro, CASC ; Pondichery State, Karikal, Madras , XII.1962, 1♂, leg. P. Susai Nathan, CASC ; Pondichery State, Karikal, Madras , IX.1963, 1♀ (im.), leg. P. Susai Nathan, CASC ; West Bengal State, Calcutta , 17.VIII.1965, 1♀, leg. B. V. College, CASC ; West Bengal State, 25 mi. Calcutta , 6.XI.1966, 1♂, leg. Dr. N. K. Paul, CASC ; Kerala Peryar res., 1♀ (im.), 15.IV.1993, leg. P. Senft, FKCP ; Kerala Munar env., Kalar wall., 2♀ (im.), 29–31.V.1994, leg. R. Sauer, FKCP ; Tamil Nadu, Mudumalai N.P., 1♀, 18.VI.1994, leg. R. Sauer, FKCP ; Kerala, 15 km SW Munnar, Kallar Valley , 1250 m, 10°02’N 76°58’E, 5.V.1997, 3♀ 1juv., leg. Dembický & Pacholátko, FKCP ; Tamil Nadu, Nilgiri hills, 15 km SE of Kotagirl, Kunjappanai env., 76°56’E 11°22’N, ca 900 m, 22–30.V.1999, 2♂ 4♀ 4 juvs., leg. Z. Kejval & M. Trýzna, FKCP ; Karnataka, Coorg , 10 km SE of Virajpet, 75°46’E 12°06’N, ca 500– 900 m, V.1999, 1♀, leg. Z. Kejval & M. Trýzna, FKCP .

DISTRIBUTION. India (Andhra Pradesh, Karnataka, Madhya Pradesh, Maharashtra, Tamil Nadu) ( Pocock, 1893a: 299; Tikader & Bastawade, 1983: 280, Fet & Lowe, 2000: 150) (Kerala) (first record), Sri Lanka ( Pocock, 1900: 48).

COMMENTS. In their description of Isometrus sankariensis, Tikader & Bastawade (1983) distinguished I. thurstoni on the position of trichobothrium db. My examination of the lectotype reveals the position of that trichobothrium in their Figs. 796 and 797 on p. 279 to be incorrectly drawn. It is situated between trichobothria dt and et and not between et and est. Specimens in my collection that I considered to be I. sankariensis (see Kovarik, 1994: 201) are immature females of I. thurstoni .