Charinus bichuetteae Giupponi & Miranda, 2016

Fig. 27; Table 2

Charinus bichuetteae Giupponi & Miranda, 2016: 23–25, figs 2h, 3h, 11a–f.

Diagnosis

Based on Giupponi & Miranda (2016), this species may be separated from other Charinus in Amazonia and northern South America by means of the following combination of characters: tegument pale yellow in color; median eyes and median ocular tubercle absent; lateral eyes well developed; small, rounded, markedly sclerotized tetra- and pentasternum; cushion-like female gonopod with lateral projections directed posteriorly, covering opening of internal seminal receptacles (atrium); pedipalp femur with two dorsal spines and three ventral spines; pedipalp tarsus with two spines, proximal spine small, ca one quarter length of distal spine; tibia of leg I with 21 articles, tarsus I with 37 articles; leg IV basitibia with two pseudo-articles; trichobothrium bt situated in proximal third of distitibia; leg IV distitibia with 16 trichobothria; trichobothrium bc situated closer to sbf than to bf.

Charinus bichuetteae is one of ten species of Charinus in Amazonia and northern South America in which the basitibia of leg IV consists of two pseudo-articles; the others are C. bonaldoi, C. brescoviti, C. bromeliaea, C. carvalhoi sp. nov., C. camachoi, C. pardillalensis, C. platnicki, C. quinteroi and C. ricardoi . Charinus bichuetteae differs from C. bromeliaea and C. carvalhoi sp. nov. in the cushionlike gonopods, which are sucker-like in C. bromeliaea and in C. carvalhoi sp. nov. The absence of median eyes and ocular tubercle differentiates C. bichuetteae from C. brescoviti and C. bromeliaea . Seven of these species lack median eyes and median ocular tubercle, and can be differentiated from C. bichuetteae by the number of teeth on the cheliceral claw and the number of spines on the pedipalp femur.

Etymology

Patronym honoring Dr Maria Elina Bichuette (Giupponi & Miranda 2016).

Type material

Holotype BRAZIL • ♂; Pará, Vitória do Xingu Municipality, AL 44, Gruta do China; 9 Jul. 2009; D. Pedroso, Pellegatti-Franco, M.E. Bichuette and T.L.C. Scatolini leg.; MNRJ 9204.

Paratypes BRAZIL • 1 ♂; same collection data as for holotype; MNRJ 9173 • 1 ♀, Pará, Vitória do Xingu Municipality, AL 19, Paratizão; 10 Jul. 2009; D. Pedroso, F. Pellegatti-Franco, M.E. Bichuette and T.L.C. Scatolini leg.; MNRJ 9174 • 1 ♀, 1 juv. ♀; Altamira Municipality, AL 05, Gruta do Sismógrafo; 05°52′44″ S, 53°39′29″ W; 7 Jul. 2009; D. Pedroso, F. Pellegatti-Franco, M.E. Bichuette and T.L.C. Scatolini leg.; MNRJ 9172 • 3 ♀♀, 1 ♂; Altamira Municipality, B0103 - Caverna Sugiro-Roncador; 2 Jan. 2011; B0026 - river bank, under stone; 3 Apr. 2011; B0049 - Pedra da Cachoeira Cave; 3 Apr. 2011; M.E. Bichuette, J.E. Gallão, D.M. von Schimonsky and D.R. Pedroso leg.; B0026: riverbank, under stone; B0049: Pedra da Cachoeira Cave; MNRJ 9311 .

Measurements

See Table 2.

Distribution

Known from the type localites.

Natural history

Specimens were found on cave walls.

Remarks

See Giupponi & Miranda (2016) for more details concerning the taxonomy of C. bichuetteae .