Crinopseudoa nimba Pett & Jocqué, 2024

Pett, Brogan L., Pashkevich, Michael D., Freeman, Benedictus, Timperley, Jonathan H. & Jocqué, Rudy, 2024, Four new species of Crinopseudoa (Araneae: Corinnidae) from West Africa, Zootaxa 5523 (1), pp. 70-82 : 75-78

Crinopseudoa nimba Pett & Jocqué sp. nov.

Figures 4 , 5

Type material. Holotype: ♂: GUINEA: Nimba region , Mt. Nimba, Seringbara Forest, 07° 39’N, 08°25’W, 24 February 2012, leg. C. Allard, P. Bimou, A. Henrard & M. Sidibé ( RMCA _238740).

Paratypes: GUINEA: 1♀: Nimba region , Mt. Nimba , Cavaly River , 07°40’N, 08°25’W, 11 February 2012, leg. C. Allard, P. Bimou, A. Henrard & M. Sidibé ( RMCA _239235); 1#: Nimba region , Mt. Nimba, Gobula Forest, 07°40’N, 08°27’W, 3 March 2012, leg. C. Allard, P. Bimou, A. Henrard & M. Sidibé ( RMCA _239108) ; 1♂: Nimba Region , Mt. Nimba , Ziela, Grotte Blandé, 07°43’N, 08°19’W, 8 February 2012, leg. C. Allard, P. Bimou, A. Henrard & M. Sidibé ( RMCA _238739) .

Diagnosis. Males are closest to C. billeni , sharing a small dorsal scutum and reduced appendages of the posterior part of the tegulum ( Fig. 4C–F ; Jocqué & Bosselaers 2011, figs 48A, B). Crinopseudoa nimba sp. nov. males are separated by: (i) a moderately long, non-indented RTA (vs. short and indented), (ii) a moderately sized PTA with a globular tip (vs. small and sharp), (iii) CAPT distinct and spherical, extending a small distance from tegulum (vs. indistinct, pointed and not protruding from tegulum), and (iv) short embolus only just crossing through prolateral margin of MA (vs. long, almost reaching retrolateral margin of MA) ( Fig. 4F ). Females resemble those of C. leiothorax Jocqué & Bosselaers, 2011 and C. otus Jocqué & Bosselaers, 2011 in sharing a single frontal lip to the epigyne without a larger transverse fold behind; females of the new species are distinguished by the very narrow frontal recurved depression of the epigyne (vs. broad and sideways C-shaped) and simple oval ST and a Procurved posterior margin of the epigyne with with several minute indentations (vs. smooth posterior margin) ( Fig. 5C–E ).

Etymology. The specific epithet refers to Mount Nimba, the type locality; to be treated as a noun in apposition.

Description. Male (holotype; RMCA_238740). TL 3.72, CL 1.88, CW 1.68, SL 0.96, SW 0.96, AL 1.88, AW 1.20. Carapace chestnut brown, with black mottling, network of small warts distinct, fovea narrow but distinct. Sternum smooth, light, concolorous with coxae and epigastric region. Legs orange-brown, without darker patches on femora. Abdomen brownish-grey, with small pale patch at posterior margin, with orange-brown dorsal scutum covering about 20% of abdomen ( Fig. 4A, B ). Pedipalp: RTA moderately long and recurved toward the palp at apex, appearing horn-like, with tiny serrations on dorsal margin at apical third. PTA medium sized, triangular and slightly globular at apex. RAPT small, rounded, not projecting from tegulum, small point medially from RAPT base, CAPT small and spherical, protruding from tegulum slightly, PAPT broad with very short anteriorly directed (at 11 o’clock position) triangular point. Embolus broad basally with short sickle-shaped tip ( Fig. 4C–F ). Leg spination: I: F- d1 pl1, Ti- v7-7, Mt- v4-4. II: F- d1, Ti- v7-7, Mt- v4-4. III: F- d2, Ti- d1-1, v1-1, Mt- d1-1 v1-1, IV: F- d2, Ti- d2-2, v1-1 Mt- d1-1, v2-2.

Female (paratype; RMCA_239235). TL 3.84, CL 1.84, CW 1.56, SL 0.96, SW 1.00, AL 2.00,AW 1.60. Carapace chestnut brown, with black mottling, network of small warts distinct, fovea narrow but distinct. Eyes ringed with black, especially between AME and LE. Sternum smooth, orange-brown, concolorous with legs. Legs orange-brown, with scattered darker patches. Abdomen brownish with darker mottling ( Fig. 5A ). Epigyne: Large black oval ST visible through integument, two large and wide lobate ducts also visible ( Fig. 5B–E ). Leg spination: I: F- d pl2, Ti- v7-7, Mt- v3-3. II: missing. III: F- d2, Ti- pl1 plv1, Mt- pl1, v1-2. IV: F- d1, Ti- d2-2, v1-1 Mt- d1-1, v2-2.

Figures

FIGURE 4. Crinopseudoa nimba sp. nov. Holotype male RMCA_ 238740. A. Habitus, dorsal. B. idem, ventral. C, D. Male palp, retrolateral view. E, F. Male palp, ventral view. Scale bars: A, B: 1 mm; C–F: 0.2 mm.

FIGURE 5. Crinopseudoa nimba sp. nov. Paratype female RMCA_ 239108. A. Habitus, dorsal. B, C. Epigyne, ventral view. D, E. Epigyne cleared: D. Dorsal. E. Ventral. Scale bars: A: 1 mm; B–D: 0.1 mm.