Chaerilus celebensis Pocock, 1894

Lourenço, Wilson R., Sun, Dong & Zhu, Mingsheng, 2010, A New Species Of Chaerilus Simon, 1877 (Scorpiones, Chaerilidae) From Thailand, Raffles Bulletin of Zoology 58 (1), pp. 79-85 : 79-81

Chaerilus celebensis Pocock, 1894

( Figs. 1 , 2 , 5B,D ; Table 1)

Chaerilus celebensis Pocock, 1894: 93 ; Kraepelin, 1899: 158; Kraepelin, 1913: 145; Fage, 1946: 72 (misidentification); Takashima, 1945: 99; Kova ík, 2000: 43; Lourenço & Ythier, 2008: 27.

Material examined. – 1 female-juvenile holotype (BMNH- 1896.10.6.5.), Indonesia, Luwu , Celebes (Sulawesi) Island, coll. M. Weber, 6 Jun.1896 ; 1 female ( ZMUH), Indonesia, Luwu , Celebes (Sulawesi) Island, Sadara-Spitze, coll. Sarasin, 4 Mar.1897 ; 1 female ( MNHN), Indonesia, Luwu, Celebes (Sulawesi) Island, Malino , slopes of the Lompobatang, 1500 m alt., coll. P. Leclerc, 6 Jul.1986 ; 1 male-juvenile ( MHNH), Indonesia, Luwu , Celebes (Sulawesi) Island, Tacipi-Lampo, Bone, coll. P. Leclerc, 17 Jul.1986 ; 1 female-juvenile ( MHBU), Indonesia, Luwu , Celebes (Sulawesi) Island, Tacipi-Lampo, Bone, coll. P. Leclerc, 15 Jul.1986 .

Diagnosis. – Species with small to moderate size in relation to the other species of the genus with 22 to 26 mm in total length.

Coloration. – Basically reddish-yellow to yellowish-brown. Carapace reddish to reddish-brown, with two posterior spots on posterior edge; tergites yellowish, intensely marked with brownish confluent spots. Metasoma: All segments yellowish with variegated brownish spots; dorsal surface of segments not spotted; carinae dark reddish-brown. Telson yellowish with diffused brownish spots; aculeus reddish. Chelicerae yellowish with rather diffused variegated spots; fingers with reddish teeth. Pedipalps: reddish to reddish-brown with some diffused brownish spots; carinae blackish-brown; chela fingers very dark. Legs yellowish with diffused brownish variegated spots. Venter and sternites yellowish; with the exception of the pectines, all other structures are marked with rather diffused brownish spots (note: coloration is extensively described because of the diagnostic importance of this character in relation to closely related species).Morphology: Carapace with the anterior margin weakly concave; carinae weakly marked; moderately granular in males, more densely granular in females; furrows moderately to weakly deep. Metasomal carinae moderately to strongly granular; ventral carinae absent from segment I. Dentate margins of fixed and movable fingers of pedipalp chela with 6-7 rows of granules, not well delimited. Pectinal tooth count 3-4 in males, 3 in females. Genital operculum plates have a sub-oval shape. Trichobothriotaxy of type B, orthobothriotaxic.

Distribution. – C. celebensis has been cited from different locations, including some outside Indonesia. These correspond, however, to misidentifications, and this species can only be confirmed up to know from Celebes (Sulawesi) Island.

Figures

Fig. 1. Chaerilus celebensis Pocock, 1894. Female (MHBU). Habitus. Scale bar = 1.0mm.

Fig. 2. Chaerilus celebensis Pocock, 1894. Female (MHBU). A–C: Chela, dorso-external (A), ventral (B) and internal (C) view; D, E: Chelicera, ventral (D) and dorsal (E) view; F–H: Patella, dorsal (F), ventral (G) and external (H) view; I, J: Femur, dorsal (I) and external (J) view. Scale bars = 1.0mm.

Fig. 5. A, C, E, Chaerilus thai, new species. Female holotype (MHBU); B, D, Chaerilus celebensis Pocock, 1894. Female (MHBU); A, B, Ventral view showing the pigmentation of coxapophyses, sternum, genital operculum and pectines; C–D, Metasomal segment V and telson, lateral view; E, Metasomal segment I–V and telson, dorsal view. Scale bars = 1.0mm.