Charinus papuanus Weygoldt, 2006

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), European Journal of Taxonomy 772, pp. 1-409 : 164-165

Charinus papuanus Weygoldt, 2006

Fig. 94 ; Table 7

Charinus papuanus Weygoldt, 2006b: 28–30 , figs 35–39.

Diagnosis

This species may be separated from other species of Charinus in Oceania as follows: aside from C. papuanus , the only other charinid species in the region in which the first tarsal article of leg I is as long as the sum of the next five articles is C. pescotti , from which C. papuanus can be distinguished by the number of dorsal spines on the pedipalp femur. Charinus papuanus differs further from C. australianus and other New Caledonian species by the presence of a setiferous tubercle instead of a spine between ventral spine 1 and the proximal margin of the femur.

Etymology

Adjective referring to Papua New Guinea, the country in which the type locality is situated ( Weygoldt 2006).

Type material

Holotype PAPUA NEW GUINEA • ♂; Port Moresby, National Capital District, 6 km W of University of Papua New Guinea (U.P.N.G.); [09°24′28.21″ S, 147°07′30.14″ E]; Jun. 1980; D. Black leg.; under rocks; WAM T68999.

Paratypes PAPUA NEW GUINEA • 1 ♂, 1 juv. ♀; same collection data as for holotype; WAM T63202 .

Supplementary description

CARAPACE. Median eyes and median ocular tubercle well developed; pair of setae on median ocular tubercle; lateral eyes well developed, seta posterior to lateral ocular triad; lateral ocular triad well separated from margin of carapace.

STERNUM. Tritosternum projected anteriorly with typical setation; other sternal platelets wide, with seta on each lateral border and some smaller setae in between; pentasternum with two setae anteriorly and without seta in membranous region.

OPISTHOSOMA. Ventral sacs and ventral sac cover absent.

GENITALIA. Posterior margin of female genital operculum slightly convex; gonopod cushion-like and slightly sclerotized basally. Male gonopod with margin of fistula and lateral lobes sclerotized; lateral lobe 2 fimbriate.

CHELICERAE. Small, flat tooth on retrolateral surface of basal segment, opposite to bifid tooth; retrolateral surface of claw with row of setae from ventral to dorsal; claw with four teeth; row of eight or nine setae on prolateral surface of basal segment; bifid tooth on basal segment with dorsal cusp larger than ventral cusp.

PEDIPALPS. Coxal dorsal carina without seta encircled by round carina and with four setae on margin. Femur with five dorsal spines and four ventral spines; setiferous tubercle between ventral spine 1 and proximal margin. Patella with three dorsal spines and three prominent setiferous tubercles proximal to spine III; prominent setiferous tubercle distal to spine I, one-third length of spine I; two ventral spines and small setiferous tubercle closer to spine II; three setiferous tubercles between spine I and distal margin. Tibia with ventral spine distally and two setae between spine and distal margin. Tarsus with two dorsal spines, distal spine long, about one-third length of tarsus, proximal spine one-third length of distal spine; several long setae ventral to distal spine; cleaning organ with 29 setae in ventral row.

LEGS. Tibia of leg I with 23 articles; tarsus I with 41 articles; first tarsal article similar in length to sum of subsequent five articles, and second article very short (mean length of first article: 1.11 mm; mean sum of lengths of subsequent five articles: 1.05 mm, n =2). Leg IV basitibia with four pseudo-articles, trichobothrium bt situated on last pseudo-article; distitibia trichobothrium bc situated slightly closer to sbf than to bf, sc and sf series each with five trichobothria.

Measurements

See Table 7.

Distribution

Known only from the type locality.

Natural history

Found under rocks in disturbed areas, near human habitation.

Figures

Fig. 94. Map plotting known distributions of species of Charinus Simon, 1892 in Oceania, with inset for New Caledonia.