Chactopsis sujirima González-Sponga, 1982

Ochoa, José A., Rojas-Runjaic, Fernando J. M., Pinto-da-Rocha, Ricardo & Prendini, Lorenzo, 2013, Systematic Revision Of The Neotropical Scorpion Genus Chactopsis Kraepelin, 1912 (Chactoidea: Chactidae), With Descriptions Of Two New Genera And Four New Species, Bulletin of the American Museum of Natural History 2013 (378), pp. 1-121 : 83-84

Chactopsis sujirima González-Sponga, 1982

Figures 1 , 12B , 17B , 23E

Chactopsis sujirima González-Sponga, 1982: 132– 137 , figs. 6–10; Lourenço, 1986a: 564, fig. 23, table II; 1986b: 165, fig. 5; Lourenço and Francke, 1986: 552; González-Sponga, 1991: 27, 32, 58, 59, map 1; Lourenço, 1994a: 182; González-Sponga, 1996: 111, 113, figs. 248–251; Sissom, 2000: 312; Soleglad and Sissom, 2001: 92; González-Sponga, 2001: 29, 41, 49, map 5; Lourenço, 2002b: 435; Rojas-Runjaic and de Sousa, 2007: 299; Botero-Trujillo, 2008: 34.

Chactopsis sp. : González-Sponga, 1984a: 53 (part).

TYPE MATERIAL: Holotype ♀ ( MAGS 4390 ex MCNC 796 ), VENEZUELA: Amazonas: Municipio Atabapo: Coshirowäteri, confluence of Matacuni and Padamo rivers [03 ° 029140 N 65 ° 139410W], x.1982, P. Anduze.

NEW RECORD: BRAZIL: Amazonas: Municipio Barcelos: Serra do Tapirapecó [01 ° 179N 64 ° 399W, 1200 m], A.A. Nogueira, 16.x.2007, 1 ♀ ( INPA 0550), tissue ( AMNH [ LP 9892]).

DIAGNOSIS: Although the male of C. sujirima is unknown, it is placed in the genus Chactopsis on the basis of its trichobothrial pattern. Chactopsis sujirima differs from all other species of the genus in possessing 31 trichobothria on the pedipalp patella, due to the absence of trichobothria v 6 and v 7; all other species of the genus possess 33 or 34 trichobothria, including v 6 and v 7, on the patella. In addition, the DL carinae of the tergites, which progressively increase in size from tergites I–VII, are more developed in C. sujirima (fig. 12B) than in other species of the genus, in which the DL carinae are well developed only on tergite VII, and vestigial on tergites I–VI (fig. 12A); the DL carinae of metasomal segments I–IV are also more developed, becoming very pronounced posteriorly in C. sujirima (fig. 17B), than in all other species of the genus (fig. 17A); and the VL carinae are well developed and granular in the anterior two-thirds of the telson in C. sujirima (fig. 23E), unlike other species of the genus, in which the VL carinae are absent or obsolete (fig. 23A–D).

SUPPLEMENTARY DESCRIPTION: The following supplements González-Sponga’s (1982) original description.

Trichobothria: Femur with three trichobothria. Patella with 31 trichobothria: two dorsal, five ventral, 23 external, one internal; trichobothria v 6 and v 7 absent; est 5 situated on VE margin, slightly distal to est 4; est 2 situated proximal to est 3 and in same axis as est 4; em 2 situated slightly proximal to em 1 and em 3; em 1 situated in same axis as em 3; esb 2 situated slightly distal to esb 3. Chela with 26 trichobothria: 10 situated on manus, three ventral, seven external; 16 situated on fixed finger, seven external, six dorsal, three internal (it, isb, ib); ist absent; it situated in same axis as est; Est situated closer to V 3 than to Et 1; Et 1 and Et 2 situated approxi- mately in same axis; eb situated proximal to base of fixed finger; db situated slightly proximal to esb; dm 1 situated slightly proximal to et 3.

DISTRIBUTION: This species is known only from the type locality in the state of Amazonas, Venezuela, and a new record from Serra do Tapirapecó, a mountainous region in the state of Amazonas, Brazil (fig. 1).

HABITAT: The two known localities of this species fall within primary rainforest and montane forest.

Figures

Fig. 1. Distribution of Chactopsis Kraepelin, 1912, plotting known locality records in Brazil, Peru, and Venezuela. Chactopsis amazonica Lourenço and Francke, 1986, open circles; Chactopsis barajuri González- Sponga, 1982, solid triangle; Chactopsis buhrnheimi Lourenço, 2003, open star; Chactopsis curupira, n. sp., open triangle; Chactopsis chullachaqui, n. sp., open diamond; Chactopsis insignis Kraepelin, 1912, solid squares; Chactopsis siapaensis González-Sponga, 1991, open square; Chactopsis sujirima González-Sponga, 1982, solid circles; undetermined Chactopsis species, solid stars. Box indicates area mapped in figure 2.

Fig. 12. Chactopsis Kraepelin, 1912, tergites I–VII, dorsal aspect. A. Chactopsis insignis Kraepelin, 1912, ³ (MHNC). B. Chactopsis sujirima González-Sponga, 1982, holotype ♀ (MAGS). Scale bars 5 1 mm.

Fig. 17. Chactopsis Kraepelin, 1912, metasomal segments III–V, lateral aspect. A. Chactopsis siapaensis González-Sponga, 1991, holotype ³ (MAGS). B. Chactopsis sujirima González-Sponga, 1982, holotype ♀ (MAGS). Scale bars 5 1 mm.

Fig. 23. Chactopsis Kraepelin, 1912, telson, lateral aspect. A, B. Chactopsis insignis Kraepelin, 1912. A. ³ (MHNC). B. ♀ (MHNC). C, D. Chactopsis siapaensis González-Sponga, 1991. C. holotype ³ (MAGS). D. ♀ (AMNH). E. Chactopsis sujirima González-Sponga, 1982, holotype ♀ (MAGS). Scale bars 5 1 mm.