Charinus euclidesi Miranda & Giupponi & Prendini & Scharff 2021, sp. nov.
Creators: name: Miranda, Gustavo Silva de
name: Giupponi, Alessandro P. L.
name: Prendini, Lorenzo
name: Scharff, Nikolaj
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Amblypygi
Charinidae
Charinus
Charinus euclidesi

description: Charinus euclidesi sp. nov.
urn:lsid:zoobank.org:act: CFBC1532-31B7-4BAF-B313-28D02A28179E
Figs 6C–D, 9A–B, 43, 61–63; Table 4
Diagnosis
This species may be separated from other Charinus in eastern South America by means of the following combination of characters: cheliceral claw with nine teeth; males with sexually dimorphic pedipalps (Fig. 61A–D); pedipalp coxae with three long setae on margin, and distinct seta encircled by round carina; pedipalp femur with five dorsal spines and five ventral spines (Fig. 61A–B); pedipalp tibia with distinct setiferous tubercle proximally and ventral spine distally; pedipalp tarsus with three dorsal spines (Fig. 61C–D); leg IV distitibia sc and sf series each with six trichobothria.
This species resembles C. diamantinus sp. nov., but bears more spines on the pedipalp femur and patella.
Etymology
Patronym honoring Euclides da Cunha, one of the foremost Brazilian writers, born in the region in which this species was collected.
Type material
Holotype BRAZIL • ♂; Rio de Janeiro, Cantagalo, Gruta da Pedra Santa, Fazenda da Mineiração Mauá (Euclidelândia); 21°56′16″ S, 42°15′16″ W; 13 Nov. 2005; M.S. Silva and R.L. Ferreira leg.; MNRJ 9099.
Paratypes BRAZIL • 2 ♀♀; same collection data as for holotype; MNRJ 9099.
Description
CARAPACE. Frontal process large, triangular, acute, not visible in dorsal view (Fig. 61F); median eyes large (Fig. 61F); median ocular tubercle shallow, with pair of setae, posterior to eyes; lateral eyes poorly pigmented, but with tapetum (Fig. 61A); small seta posterior to lateral ocular triad.
STERNUM. Tritosternum projected anteriorly into long tubercle (Fig. 61E); median and third platelet rounded, convex, with two setae medially and few small setae posteriorly; metasternum with several small setae anteriorly and three long setae posteriorly.
OPISTHOSOMA. Ventral sacs and ventral sac cover absent.
GENITALIA. Female gonopod sucker-like, with apex of gonopods converging (Fig. 6C–D); posterior margin of genital operculum straight, with few setae along margin and on surface (Fig. 6C–D). Male gonopod with LoL2 long and fimbriate (Fig. 9A–B); LoD projecting posteriorly and acuminate apically (Fig. 9A–B).
CHELICERAE. Small retrolateral tooth on basal segment. Prolateral surface of basal segment with vertical row of seven setae. Claw with nine small teeth; retrolateral surface of claw with row of setae from base to mid-apex.
PEDIPALPS. Coxal dorsal carina with one or two small setae and four or five setae on anterior margin of round carina. Femur with three distinct setiferous tubercles proximal to spine 1 (Fig. 62A–B); primary series with five dorsal spines and small spine between spines 3 and 4 (Fig. 62A–B); five ventral spines and small spine between spines 1 and 2, two small spines between spines 2 and 3, and small spine between spines 3 and 4 and 4 and 5 (Fig. 62C–D); large ventral spine proximal to spine 1 (Fig. 62C–D). Patella with five dorsal spines and small spine between spines 4 and 5 (Fig. 62A–B); large setiferous tubercle distal to spine I, about one-third length of spine I; five ventral spines (Fig. 62C–D). Tibia with two dorsal spines, basal spine two-thirds length of distal spine; ventral spine situated in distal half of tibia, with row of two setiferous tubercles near base of spine; three long setae between spine and distal margin. Tarsus with three dorsal spines, two distal spines subequal and one-fifth length of tarsus; proximal spine smaller, ca one-third length of other two spines, situated near large proximal spine, and with long seta at base (Fig. 61C–D); ventral row of cleaning brush with 27 setae.
LEGS. Tibia of leg I with 23 articles; tarsus I with 41 articles; tarsal organ situated close to base of tarsal claw (Fig. 63C, E); rod sensilla formed by six setae in shallow groove (Fig. 63A–B); slit sensilla situated opposite to tarsal claw (Fig. 63D). Leg IV basitibia with four pseudo-articles; trichobothrium bt situated in proximal third; distal apex of basitibial pseudo-articles with dark, denticulate projection; distitibia trichobothrium bc situated closer to sbf than to bf; sc and sf series each with six trichobothria; distitarsus with distinct white annulus distally on first article.
Measurements
See Table 4.
Distribution
Known only from the type locality.
Natural history
The known specimens were collected exclusively inside caves.
description: Published as part of Miranda, Gustavo Silva de, Giupponi, Alessandro P. L., Prendini, Lorenzo & Scharff, Nikolaj, 2021, Systematic revision of the pantropical whip spider family Charinidae Quintero, 1986 (Arachnida, Amblypygi), pp. 1-409 in European Journal of Taxonomy 772 on pages 110-111, DOI: 10.5852/ejt.2021.772.1505, http://zenodo.org/record/5536410