Nops minas, Sánchez-Ruiz & Brescovit, 2018

Sánchez-Ruiz, Alexander & Brescovit, Antonio D., 2018, A revision of the Neotropical spider genus Nops MacLeay (Araneae: Caponiidae) with the first phylogenetic hypothesis for the Nopinae genera, Zootaxa 4427 (1), pp. 1-121 : 94-97

Nops minas new species

Figures 63G‒L ; 64A‒G

Types. Male holotype from Estacão Ecolόgica de UFMG (19°52′S, 43°58′W), Belo Horizonte , Minas Gerais, Brazil, deposited in IBSP 66766 . Male and female paratypes same data as holotype deposited in IBSP 66762 .

Additional material examined. BRAZIL: Maranhão: Mirador, Parque Estadual de Mirador (6°26′1″S, 44°53′58″W), 30.vi‒4.vii.2008, J.B. F . Lima ‒ Lobato, 1♂ 1♀ ( IBSP 117224 ) . Goiás: Catalão (18°02′29″S, 48°00′36″W), 10‒16.ii. 203, J.P. Guadanucci, F.S. Cunha, 1♂ ( IBSP 117052 ) . Luziania, Barragem de Corumbá IV (16°19′38″S, 48°13′22″W), 22.ix.2005, Equipe IBSP, 1♀ ( IBSP 79091 ) . Minas Gerais: Belo Horizonte, Estação Ecolόgica de UFMG (19°52′S, 43°58′W), v. 2000, E .S.S Álvares, 1♂ (IBSP 66764). Ditto , i‒ii.2000, E.S.S Álvares, 5♂ ( IBSP 66763 ) . Ditto , iii‒vii.2001, E.S.S Álvares, 4♂ ( IBSP 66767 ) . Ditto , 27.iii.2000, E.S.S Álvares, C.S. Azevedo & E.O. Machado, 5♂ ( IBSP 27241 ) . Ditto , iii.2000, E.S.S Álvares, 3♂ ( IBSP 66765 ) . Ditto , vii.2000, E.S.S Álvares, 3♂ ( IBSP 66769 ) . Ditto , xii.2000 ‒ i.2001, 9 ♂ ( IBSP 66768 ) . Juatuba (19°57′7″S, 44°20′34″W), Área de preservação de COPASA, Núcleo Serra Azul , 18‒23.iv.2002, A . J. Santos , 1♂ ( IBSP 150202) . São Paulo: Teodoro Sampaio, Parque Estadual Morro do Diabo (22°37′15″S, 52°10′18″W), 24‒31.iii.2003, Equipe BIOTA, 1♂ ( IBSP 154378 ) . Jaboticabal , (21°15′18″S, 48°19′19″W), iii‒iv.2004, F.J. Cividanes, 2♂ ( IBSP 55891 ) . Araraquara , (21°47′38″S, 48°10′33″W), 2003, L. Marcomini, 1♂ ( IBSP 43018 ) .

Etymology. The specific name is a noun in apposition, derived from the type locality.

Diagnosis. Both sexes resemble similar congener Nops meridionalis , which have a similar abdominal pattern as in figure 6I, the PLS longer than PMS and the posterior unpaired claws small ( Fig. 5C ); but can be distinguished by a straight embolus, shorter than palpal tibia ( Fig. 64B, D ) in males, and females can be distinguished by a weakly sclerotized lep, unremarkable ess and unsclerotized lateral margins of anterior plate ( Fig. 64F ).

Description. Male (holotype): Carapace orange ( Fig. 64A ). Chelicerae, labium, and legs yellowish orange, coxae and trochanters lighter. Endites and sternum yellowish orange. Abdomen light gray, dorsal pattern as in figure 6I, lighter ventrally. Anal tubercle and spinnerets light gray. Total length 7.9. Carapace 4.8 long, 3.8 wide. Sternum 4.2 long, 3.2 wide. Leg measurements: I: 3.8; II: 3.75; III: 3.3; IV: 3.95. Posterior unpaired claws small, as in other three‒clawed spiders. PLS longer than PMS. Palp with straight embolus, shorter than palpal tibia ( Figs 63G ; 64B‒D); embolar tip with a wide cut on prolateral side and two long extensions ( Fig. 63H‒I ).

Female (paratype): Carapace, chelicerae, labium, coxae, legs, endites and sternum as in male. Abdomen as in male ( Fig. 64E ). Anal tubercle and spinnerets whitish yellow. Total length 8.3. Carapace 5.0 long, 4.1 wide. Sternum 4.5 long, 3.4 wide. Leg measurements: I: 3.9; II: 3.8; III: 3.4; IV: 4.05. Posterior unpaired claws and PLS as in male. External genital area with weakly sclerotized anterior plate and lep, unremarkable ess ( Fig. 64F ). Internal genitalia with wide invagination on receptaculum and uterus externus with narrow base ( Figs 63J‒L ; 64G).

Distribution. Known from the Brazilian States of Maranhão, Goiás, São Paulo and Minas Gerais ( Fig. 65A ).

Figures

FIGURE 5. A–C diagrams of tarsal claws in Nops MacLeay showing only distal part of tarsi and claws (other structures as setae, frictional hairs or basal membrane were omitted). A–B Nops guanabacoae MacLeay. C Nops agnarssoni Sánchez–Ruiz, Brescovit & Alayón. D diagram of metatarsus and tarsus I in Nops guanabacoae MacLeay showing membranous modifications of Nopinae legs (other structures as setae, frictional hairs or basal membrane were also omitted). Abbreviations: aj—adesmatic joint, ar—arolium, ca—crista, CwL—claw lever, gl—gladius, MtS –metatarsal dorsal stopper, SC—pretarsal paired claws, IC—pretarsal unpaired claw. Scale bar: 40 µm (A–B), 0.5 mm (D).

FIGURE 63. A–F Nops meridionalis Keyserling; male (MCTP 27792); G–L Nops minas n. sp.; G–I male (IBSP 117224); J–L female (IBSP117224). A left bulb, hematodocha, dorsal oblique view. B left bulb, retrolateral view. C same, ventral oblique view. D tip of embolus, retrolateral view. E same, ventral oblique view. F same, close up. G right palp, prolateral view. H tip of embolus, prolateral view. I same, dorsal view. J respiratory system, dorsal view. K receptaculum and uterus externus, dorsal view. L detail of uterus externus, dorsal view. Abbreviations: ete—embolar tip extensions, re—posterior receptaculum, ue—uterus externus.

FIGURE 64. Nops minas n. sp.; A–D male (holotype); E–G female (paratype). A habitus, dorsal view. B left palp, prolateral view. C left palp, ventral view. D left palp, retrolateral view. E habitus, dorsal view. F external genital area, ventral view. G internal genitalia, dorsal view. Abbreviations: ap—anterior plate, ess—sclerotization around spiracles, go—genital opening, pp—posterior plate, re—posterior receptaculum, ue—uterus externus.

FIGURE 65. Distribution maps. A Nops minas n. sp.; B Nops nitidus Simon.