Hexapopha rheimsae, Feitosa & Ott & Bonaldo, 2023

Feitosa, Níthomas M., Ott, Ricardo & Bonaldo, Alexandre B., 2023, Meeting the southern brothers: a revision of the Neotropical spider genus Hexapopha Platnick, Berniker & Víquez, 2014 (Araneae, Oonopidae), Zootaxa 5329 (1), pp. 1-150 : 56

Hexapopha rheimsae sp. nov.

Figs 35–36 ; Map 5

Type material: Holotype: male from Estaç „o Ecológica do Una, Una, Bahia, Brazil (14º48’S, 39º02’W / 15º17’48”S, 39º04’28”W), Oct, 1999– Sept. 2000, M.F. Dias leg., 1♁, deposited in IBSP 64295, PBI_OON 51542 . Paratypes: same data as holotype, 1♁ ( IBSP 64282 , PBI _ OON 51532 ); 1♁ ( IBSP 64281 , PBI _ OON 51551 ) .

Etymology. The specific name is a patronym honoring the arachnologist Cristina Anne Rheims (IBSP), recognizing her great contribution to the Goblin Spiders PBI.

Diagnosis. Males are similar to those of H. santosi sp. nov. and H. erebai sp. nov. by the presence of a median concavity on the sternum ( Figs 20A , 34B , 36A ); They differ from H. erebai sp. nov. by the endite’s P1 not directed posteriorly, not reaching the anterior margin of sternum and from those of H. santosi sp. nov. by the labium anterior margin not projected forward at middle and by the subquadrangular endite’s P1 ( Fig. 36C ) (protuded distally in H. santosi sp. nov., Fig. 34D ).

Description. Male (PBI_OON 51542). Total length 1.56. CEPHALOTHORAX: Carapace orange-brown, with Coxapopha -like pattern, pars cephalica domed in lateral view, surface of elevated portion of pars cephalica smooth, sides finely granulate, fovea present ( Figs 35B–C ). Eyes ALE oval, PME circular, PLE oval; posterior eye row straight from both above and front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME touching, PLE-PME separated by less than PME radius ( Fig. 35E ). Sternum longer than wide, pale orange, median concavity present, with radial furrows between coxae I–II, II–III, III–IV, furrow smooth, surface smooth, without pits, microsculpture absent ( Figs 35D , 36B ). Mouthparts: Chelicerae distal region unmodified ( Fig. 35E ). Labium anterior margin not indented at middle, much wider than long ( Fig. 36C ). Endites with a median projection (mp), a P1 and a P2; mp very short, directed anteriorly; P1 lamellar, directed anteriorly, situated posteriorly to mp. P2 short, situated anteriorly to mp ( Figs 35F, C–E ). ABDOMEN: dorsum soft portions pale orange. Book lung covers large, round. Dorsal scutum orange-brown, covering full length of abdomen, no soft tissue visible dorsally. Epigastric scutum not protruding. Postepigastric orange-brown, almost semicircular, covering nearly full length of abdominal length ( Figs 35B, G ). LEGS: pale orange. GENITALIA: Epigastric region with sperm pore situated at level of posterior spiracles. Palp proximal segments pale orange; embolus short, nearly three times longer than wide, tip flattened, not bent upwards; conductor present, filiform ( Figs 35G–I , 36H–K ).

Female. Unknown.

Other material examined. Brazil. Bahia. Una: Estaç „o Ecológica do Una (14º48’S, 39º02’W / 15º17’48”S, 39º04’28”W) Oct, 1999– Sept. 2000, M.F. Dias leg., 1♁ (IB64523, PBI _ OON 51575 ) .

Distribution. Known only from type locality, Una, state of Bahia, Brazil ( Map 5 ).

Figures

MAP 5. Distribution of Hexapopha species.

FIGURES 20A–L. Hexapopha erebai sp. nov., male, SEM images (MPEG 10911; PBI_OON 45821). A–B carapace. A anterior view. B ventral view. C mouthparts, ventral view. D chelicerae, anterior view. E abdomen, ventral view. F sperm pore, ventral view. G prosoma pedicelar region, detail of process (arrow). H–I left palp. H prolateral view. I retrolateral view. J–K embolus. J prolateral view. K retrolateral view. L trichobothrial base, metatarsus III, dorsal view. Abbreviations: mp, median projection; P, projection.

FIGURES 34A–L. Hexapopha santosi sp. nov., male, SEM images (IBSP 65306; PBI_OON 51573). A–C carapace. A lateral view. B frontal view (arrow:median concavity).C ventral view. D mouthparts, ventral view. E endites, anterior view. F abdomen, lateral view. G sperm pore, ventral view. H–I left palp. H retrolateral view. I prolateral view. J–K embolus. J retrolateral view. K prolateral view. L chelicerae, posterior view. Abbreviations: c, conductor; E, embolus; la, labium; mp, median projection; P, projection.

FIGURES 35A–I. Hexapopha rheimsae sp. nov., male (IBSP 64281; PBI_OON 51551). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F mouthparts, ventral view. G abdomen, ventral view. H–I left palp. H prolateral view. I retrolateral view. Scale bars: 0.1mm.

FIGURES 36A–L. Hexapopha rheimsae sp. nov., male, SEM images (IBSP 64281; PBI_OON 51551). A–B carapace. A lateral view (arrow: median concavity). B ventral view. C mouthparts, ventral view. D–E endites. D anterior view. E lateral view. F abdomen, lateral view. G sperm pore, ventral view. H–I left palp. H retrolateral view. I prolateral view. J–K embolus. J retrolateral view (arrow: conductor). K prolateral view. L chelicerae, posterior view. Abbreviations: la, labium; mp, median projection; P, projection.