Falconina adriki, García & Bonaldo, 2023

García, Fabián & Bonaldo, Alexandre B., 2023, Taxonomic revision of the soldier spider genus Falconina Brignoli, 1985 (Araneae: Corinnidae: Corinninae), Zootaxa 5343 (3), pp. 201-242 : 227-229

Falconina adriki sp. nov.

Figs 15–16 , 24

Type material. Holotype ♂ and paratype ♀: BRAZIL: Rio de Janeiro: Petrópolis [S22.49818°, W43.17546°, 1035 m], C. Mello-Leitão leg. ( MNRJ 689 ).

Etymology. The name is a patronym in honour of our friend and colleague, the arachnologist from the Museu Nacional, Rio de Janeiro, Adriano Brilhante Kury, nicknamed “Adrik”.

Diagnosis. Males of Falconina adriki sp. nov. resemble those of F. crassipalpis sp. nov. by the RTA composed of only two lobes, the dorsal one being absent, and by the laminar, sculptured tegular process. They differ by the absence of a dorsal process on the ventral lobe of the RTA and by the sub-squared tegular process, without a basal membranous sector ( Figs 15A–B , 16A–B ). Females differ from those of other Falconina species with the posterior margin of the epigynal plate without a pronounced median notch by the posterior margin of the epigynal plate abruptly curved laterally and by the posterior vulvar plate as long as wide ( Figs 15C–D , 16C–D ).

Description. Male (MRNJ 689). Carapace reddish-brown, cephalic region darker. Chelicerae and labium reddish-brown, labium orangish-brown. Sternum orangish-red with dark brown edges. Legs reddish-brown with the femur dark brown. Abdomen dark black, with two pairs of small white patches under scutum, first pair larger than second. Three white stretch marks in posterior end of abdomen. Total length 5.820. Carapace 2.745 long, 2.194 wide. Clypeus height 0.216. Eye diameters: AME 0.102, ALE 0.100, PME 0.107, PLE 0.153. Interocular distances: AME-AME 0.097, AME-ALE 0.060, PME-PME 0.170, PME-PLE: 0.138, ALE-PLE 0.059, PME-AME 0.104. Chelicerae with three promarginal teeth, the second two times longer, and six retromarginal teeth, the most proximal to fang three times smaller than others. Sternum 1.133 long, 1.348 wide. Leg measurements: I—2.536, 0.767, 2.412, 1.864, 1.728, 9.307; II—2.351, 0.810, 1.764, 1.798, 1.495, 8.218; III—2.128, 0.803, 1.653, 2.117, 1.539, 8.240; IV—2.934, 0.660, 2.268, both missing. tarsus both missing. Abdomen 2.937 long, 2.012 wide. Leg spination: I—femur d 1-0-1; p 0-0-1; r 0-0-0; v 0-0-0; tibia d 0-0-0; p 0-0-0; r 0-0-0; v 2-2-2-2-2; metatarsus d 0-0-0; p 0-1-0; r 0-0-0; v 2-2-2; II—femur d 1-0-1; p 0-0-1; r 0-0-0; v 0-0-0; tibia d 0-0-0; p 1-0-1; r 0-0-0; v 1-2-2-2; metatarsus d 2-0-2; p 0-1-0; r 0-0-0; v 2-2; III—femur d 1-0-1; p 0-0-0; r 0-0-0; v 0-0-0; tibia d 0-2-2; p 1-0-1; r 1-0-1; v 1- 2-2; metatarsus d 2-0-2; p 0-1-0; r 0-0-0; v 2-2-2-2. Male palp. Tibia almost half of cymbium length. Two lobes. Ventral lobe with long, thin apical spur, smaller than median lobe ( Figs 15A , 16A ). Median lobe well-developed, with concave prolateral surface, sub-rectangular. Dorsal lobe absent. Cymbium with well-developed, sub-squared retrolateral basal process. Basal prolateral process present. Spermophore with five ventral folds. Tegular process sub-rectangular, with apex rounded and striated, tegular depression at base of tegular process absent. Embolus comma-shaped. Embolar process median, partially exceeding length of embolus, with two apexes, one projecting towards conductor, and second projection overlapping tegular process ( Figs 15B , 16B ).

Female (MNRJ 689). Color as in the male. Total length 7.59. Carapace 3.100 long, 2.478 wide. Clypeus height 0.216. Eye diameters: AME 0.167, ALE 0.099, PME 0.152, PLE 0.118. Interocular distances: AME-AME 0.136, AME-ALE 0.067, PME-PME 0.165, PME-PLE: 0.159, ALE-PLE 0.078, PME-AME 0.094. Chelicerae with three promarginal teeth, the second two times longer, and six retromarginal teeth, the most proximal three times smaller than others. Sternum 1.581 long, 1.426 wide. Leg measurements: I—3.011, 1.015, 2.595, 2.016, 2.123, 10.760; II—Both missing; III—2.300, 0.952, 1.906, 1.969, 1.479, 8.606; IV—2.900, 1.172, 2.574, 2.858, both missing. Abdomen 4.497 long, 2.902 wide. Leg spination: I—femur d 1-0-1; p 0-0-1; r 0-0-0; v 0-0-0; tibia d 0-0-0; p 0-0-0; r 0-0-0; v 2-2-2-2-2; metatarsus d 0-0-0; p 0-1-0; r 0-0-0; v 2-2-2; II—femur d 1-0-1; p 0-0-1; r 0-0-0; v 0-0-0; tibia d 0-0-0; p 1-0-1; r 0-0-0; v 1-2-2-2; metatarsus d 0-0-2; p 0-1-0; r 0-0-0; v 2-2-2; III—femur d 1-0-1; p 0-0-0; r 0-0-0; v 0-0-0; tibia d 0-2-2; p 1-0-1; r 1-0-1; v 1-2-2; metatarsus d 2-0-2; p 0-1-0; r 0-0-0; v 2-2-2-2. Epigyne. Epigynal plate oval; copulatory opening positioned in middle of epigynal plate; posterior margin of epigynal plate without pronounced median notch, abruptly curved laterally ( Fig. 16C ); posterior vulvar plate weakly visible in ventral view ( Fig. 15D ); dorsally, posterior vulva well-developed, plate sub-squared, reaching vulva and primary spermathecae ( Fig. 15D ); fertilization ducts short; secondary spermathecae anteriorly placed in relation to primary spermathecae ( Figs 15D , 16D ).

Distribution. Only known from the state of the type locality ( Fig. 24 ).

Figures

FIGURE 15. Falconina adriki sp. nov. A, B male holotype (MRNJ 689): A palp, ventral view; B palp, retrolateral view. C, D female paratype (MRNJ 689): C Epigyne, ventral view; D Epigyne, dorsal view.Abbreviations AS, apical spur; CO, Copulatory opening; C, conductor; CRP, cymbial retrolateral basal process; E, embolus; EP, embolar process; FD, fertilization ducts; dVL, dorsal lobe of the ventral lobe of the retrolateral tibial apophysis; ML, median lobe of the retrolateral tibial apophysis; PmEP, posterior margin of the epigynal plate; PVP, posterior vulvar plate; S1, primary spermathecae; S2, secondary spermathecae; TP, tegular process; VL, ventral lobe of the retrolateral tibial apophysis. Scale bar 1 mm.

FIGURE 16. Falconina adriki sp. nov. A, B male holotype (MRNJ 689): A palp, ventral view; B palp, retrolateral view. C, D female paratype (MRNJ 689): C Epigyne, ventral view; D Epigyne, dorsal view. Scale bar 1 mm.

FIGURE 24. Known geographical distribution of Falconina species (except Falconina gracilis).