Charinus ricardoi Giupponi & Miranda, 2016

Fig. 27; Table 2

Charinus ricardoi Giupponi & Miranda, 2016: 6–10, figs 2b, 3b, 5a–e.

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 yellowishbrown; median eyes and median ocular tubercle absent; lateral eyes reduced, pale; small, rounded tetra- and pentasternum; cushion-like gonopods without projections and with internal seminal receptacles; pedipalp almost perpendicular to longitudinal axis, similar to that of Paracharon caecus; two dorsal spines on pedipalp tarsus, small proximal spine, one-quarter length of distal spine; basitibia of leg IV with two pseudo-articles; leg IV basitibia trichobothrium bt situated in proximal third; leg IV distitibia with 16 trichobothria; leg IV distitibia trichobothria bf, bc and sbf equidistant.

The gonopods of C. ricardoi are similar to those of C. bonaldoi, but the pedipalp proportions and length of the pedipalp segments are greater in the former.

Etymology

Patronym honoring Dr Ricardo Pinto-da-Rocha (Giupponi & Miranda 2016).

Type material

Holotype BRAZIL • ♀; Amazonas, Presidente Figueiredo, Gruta Areia Branca; 23–31 Aug. 2003; R. Pinto-da- Rocha leg.; MZSP 22036.

Paratypes BRAZIL • 3 ♀♀; same collection data as for holotype; MZSP 22036 • 1 juv.; Amazonas, Presidente Figueiredo, Gruta dos Animais; 23–31 Aug. 2003; R. Pinto-da-Rocha leg.; MZSP 22049 • 1 ♀, 1 ♂; same collection data as for preceding; MZSP 22063 .

Measurements

See Table 2.

Distribution

Known only from the type locality.

Natural history

Possibly troglophile, found only in Amazonian caves.

Remarks

See Giupponi & Miranda (2016) for more details about this species.