— 91 — 



Most noarly related to li. coriaceus, which il resemblesin the structure 

 of Lhe fifih caudal segment, !>ui easily lo be recognised by presence of 

 four keels on lhe last abdomin al Sternite and upon lhe first caudal seg- 

 menta 



llab.; Chile ou Pcrú (1). Rio Grande do Sul (2, .'5, 1). Argentina, 

 Prov. Salta (4). 



Nola. — KbaBPBLIN (e com ele Penther) considera esta espécie como variedade 

 de li. bonaríensh, não sem ponderar (3): «Vielleicht bastarei zwisehen B. viltatus 

 and li. chilensis. Mas Pocockjá acentuara, caralerizando sua espéc ie. • Most nearly 

 related lo li. coriaceus, which it resembles in the structure of the fifth caudal seg- 

 ment,» o que a separa desde logo de B. bonariens : s. Tenho duvidas sobre a identidade 

 das espécies de Pocock e Penther. 



37. — Bothriurus coriaceus Pocock, 1893 ( Fiff. 25) 



1. — li. c. Pocock, 1893, Ann. Mag. Nal. Hisl., Ser. 6. vol. 12. [>. <>5. pr. 5. f. 12. 



2. — B. r. Kraepelin, 1910, MUI. Mus. Hamburg., vol. 28. p. 9. 



Fia. 25. — Bolhriurus coriaceus Poe.: segmento caudal V 

 (face ventral) 



Descrição original : 



«cf Colour: carapace l)lackish, clouded or variegaled with ferrugine- 

 us; tergites blaek, with a red stripe along the liinder border; tai! fe- 

 rrugineous above, the lower surface of the segment s nigro-lineate, the 

 black lines expanding and fusing behind inlo a Iransverse vil la: palpi 

 ferruginous; legs and ventral surface flavous. 



«Allief lo H. bonariensis. 



«Upper surface of the trunk finely and closely granular throughout; 

 lhe slcrna also closely and finely (/mutilar throughout, lhe anterior ones 

 smoother; lhe stigmata elongalely ovate. 



«Tail smooth, above and below, lhe lower surface of the first segment 

 obsoletely keeled beneath; the superior and supero-lateral keels and the 

 space between them granular on the first segment; the supero-lateral 

 keels obsolete on the third, being merely represented in fronl behind 

 bya luhercle; lhe superior edges of the fifth smooth or granular only 

 in front. The inferior lateral keels on lhe fifth are present and denlicu- 

 late on lhe posterior Iwo thirds of lhe segment, and the median keel is 



SciELO 



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