Medionops claudiae, Sánchez-Ruiz, Alexander & Brescovit, Antonio D., 2017

Sánchez-Ruiz, Alexander & Brescovit, Antonio D., 2017, A new genus with seven species of the Subfamily Nopinae (Araneae, Caponiidae) from the Neotropical region, Zootaxa 4291 (1), pp. 117-143 : 128-129

Medionops claudiae new species

Figures 9 , 10

Types. Male holotype from Estação Ecológica Pau Brasil (16°28'S 39°14'W), Porto Seguro, Bahia, Brazil, 18.iv.1998, A.D. Brescovit, deposited in IBSP 17717 . Paratypes: 1 ♂, 1 immature ♀ from Parque Nacional de Monte Pascoal (16°52'S 39°15'W), Porto Seguro, Bahia, Brazil, 21–23.iv.1998, A.D. Brescovit, deposited in IBSP 19458 .

Etymology. The specific name is a patronym honoring Claudia Maria Sanchez Leon, the oldest daughter of the first author.

Additional material examined. BRAZIL: Bahia: Porto Seguro, Caraíva (16°47'S 39°9'W), 16–22.vi.2002, F.S . Cunha, 1♂ (legs and palp for SEM) ( IBSP 36569 ) .

Diagnosis. Males and females resemble those of M. simla (Chickering) n. comb. in having the dorsal abdominal pattern with five pairs of irregular dark gray spots in two rows, but in M. claudiae n. sp. these irregular spots never touch ( Figs 10 A–B). Can be further distinguished by their small size (less than 0.7 cm of total length); the absence of crista on the anterior metatarsi ( Figs 9 J–K); and males with tip of embolus slightly curved, acuminate, with beveled opening ( Figs 9 A–D).

Description. Male (holotype): Total length 2.9. Carapace 1.4 long, 1.3 wide. Sternum 1.3 long, 1.2 wide. Leg measurements: I: 2.3; II: 2.2; III: 2.1; IV: 2.4. Carapace, chelicerae, palps and legs orange; coxae and trochanters lighter. Endites, labium and sternum light orange. Abdomen whitish gray with a dorsal pattern formed by five small pairs of irregular dark gray spots in two rows, not touching ( Fig. 10 A). Crista absent and gladius with the common shape among nopine ( Figs 9 J–K). Palp with a spherical oval bulb and embolus longer than cymbium ( Figs 9 A, 10D–E), tip of embolus slightly curved, acuminate, with beveled opening ( Figs 9 B–D).

Female: Unknown

Distribution. Known only from the Brazilian State of Bahia ( Fig. 21 ).

Figures

FIGURE 9. Medionops claudiae n. sp., A – C Male paratype (IBSP 19458), D – L Male from Caraíva, Brazil (IBSP 36569). A left palp, prolateral view. B tip of left embolus, posterior view. C same, prolateral view. D same, retrolateral view. E tarsal claws on left leg IV, prolateral view. F tarsal claws on left leg I, prolateral view. G setae on left tarsus I, prolateral apical view. H same, detail of setae, prolateral apical view. I same, detail of frictional setae, prolateral apical view. J metatarsus on left leg I, ventral view. K metatarsus on left leg I, ventral apical view. L join between metatarsus and tibia, ventral view. Abbreviation: CwS—claw slit sensilla, gl—gladius.

FIGURE 10. Medionops claudiae n. sp., male holotype (IBSP 17717). A habitus, dorsal view. B habitus, ventral view. C sternum and mouthparts, ventral view. D left palp, prolateral view. E left palp, retrolateral view.

FIGURE 21. Map of South America showing distribution of Medionops species. Triangle, Medionops blades n. sp.; plus sign, Medionops cesari (Dupérré) n. comb.; square, Medionops claudiae n. sp.; tears, Medionops murici n. sp.; diamond, Medionops ramirezi n. sp.; circles, Medionops simla (Chickering) n. comb.; heart, Medionops tabay n. sp.