Roddenberryus sargi ( Pickard-Cambridge, 1899 ) Sánchez-Ruiz & Bonaldo, 2023

Sánchez-Ruiz, Alexander & Bonaldo, Alexandre B., 2023, Strange new spiders: on Roddenberryus, a new and unusual caponiid genus (Araneae, Caponiidae), European Journal of Taxonomy 891 (1), pp. 1-25 : 17-21

Roddenberryus sargi ( Pickard-Cambridge, 1899) gen. et comb. nov.

Figs 11E–F , 12A–H , 13 , 15

Caponina sargi Pickard-Cambridge, 1899: 44 , pl. 3, fig. 6.

Caponina sargi – Kritscher 1957: 261, fig. 13 (misidentification, male and female specimens belong to R. kirk gen. et sp. nov.).

Diagnosis

Rodeenberryus sargi resembles R. spock gen. et sp. nov., R. mccoy gen. et sp. nov. and R. pelegrina by having invaginations in the margins of the clypeus ( Fig. 12D ), but can be distinguished by its smaller size and by having a few adesmatic joints occupying only the last third of the tarsi and the last third of the metatarsi ( Fig. 12H ); females can be distinguished by the epigastric furrow having a median invagination and rounded laterals ( Figs 11E , 12F ).

Material examined

Holotype GUATEMALA • ♀; F. Sarg leg.; examined by photographs and drawings; USNM.

Other material

GUATEMALA • 1 ♀; Yaxun ; 11 Jul. 2006; C. Viquez leg.; INBIO • 6 ♀♀, 4 immature spec.; Petén, Cerro Cahuí ; 250 m a.s.l..; “17.00225704N, 89.71661333W” [17°00ʹ08.1ʺ N, 89°42ʹ59.8ʺ W]; 22 May 2009; MiniWinkler ex sifted leaf litter; MCZ 89596 .

Description

Male

Unknown.

Female (holotype, Fig. 13 )

Described by F. O. Pickard-Cambridge (1899: 44).

Female (INBIO, Fig. 12A–H )

Carapace pale orange, with invaginations on clypeal margin ( Fig. 12D ). Chelicerae dark red; palps, endites, labium, sternum and legs pale orange ( Fig. 12A ); coxae and trochanters lighter ( Fig. 12E ). Abdomen pale gray, without dorsal pattern. Anal tubercle and spinnerets lighter than abdomen ( Fig. 12G ). Total length 12.1. Carapace 6.8 long, 5.1 wide. Sternum 7.5 long, 4.5 wide. Leg measurements: I: 6.5; II: 6.4; III: 5.9; IV: 6.9. External genital area with weakly sclerotized anterior and posterior plate, epigastric furrow with median invagination and laterals rounded ( Figs 11E , 12F ). Internal genitalia with transversal posterior receptacle with median concave projection on distal margin, laterals of posterior receptacle rounded; behind posterior receptacle a presumed membranous uterus externus ( Fig. 11F ); anteromedian receptacle formed by tube-shaped membranous base and sac-like membranous structure ( Fig. 11F ).

Distribution

Known only from Peten and Yaxun in Guatemala ( Fig. 15 ).

Figures

Fig. 11. Female genitalia. A‒B. Roddenberryus kirk gen. et sp. nov., ♀ (INBIO 4407645). A. External genital area, ventral view. B. Internal genitalia, dorsal view. C‒D. Roddenberryus spock gen. et sp. nov., ♀, paratype (CNAN). C. External genital area, ventral view. D. Internal genitalia, dorsal view. E‒F. Roddenberryus sargi (Pickard-Cambridge, 1899) gen. nov., ♀ (INBIO). E. External genital area, ventral view. F. Internal genitalia, dorsal view. Scale bars: A‒B = 0.5 mm; C‒F = 0.2 mm.

Fig. 12. Roddenberryus sargi (Pickard-Cambridge, 1899) gen. nov., ♀ (INBIO). A. Habitus, dorsal view. B. Right palp, retrolateral view. C. Right palp, prolateral view, black arrow showing prolateral pick. D. Habitus, ventral view. E. Cephalothorax, ventral view. F. External genital area, ventral view. G. Spinnerets, ventral view. H. Left leg I, prolateral view. Scale bars: A, D–F = 1.0 mm; B–C, G–H = 0.5 mm.

Fig. 13. Drawings by Pickard-Cambridge (1899) of Roddenberryus sargi (Pickard-Cambridge, 1899) comb. nov. 6. Habitus, dorsal view. 6a. Cephalic area, eyes, and mandibles, dorsal view. 6b. Abdomen and external genital area, ventral view. 6d. Femur of palpus, showing stridulatory pick, prolateral view. 6e. Spinnerets, ventral view. 6f. Leg I, metatarsus and tarsus, retrolateral view. 6h. Mouthparts and mandibles, ventral view.

Fig. 15. Distribution map of Roddenberryus kirk gen. et sp. nov. (circles), R. mccoy gen. et sp. nov. (triangle), R. spock gen. et sp. nov. (heart), R. sargi (Pickard-Cambridge, 1899) comb. nov. (square) and R. pelegrina (Bryant, 1940) comb. nov. (star).