Hexapopha delta, 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 : 41

Hexapopha delta sp. nov.

Figs 24–25 ; Map 2

Type material: Holotype: male from Comunidade Umazizal , Cametá, Pará, Brazil (02º10’12.03”S, 49º34’00.00”W), Oct. 24–27, 2016, N.M. Feitosa et al., leg, deposited in MPEG 37090, PBI_OON 52669 . Paratypes: same data as holotype (02º11’04.50”S, 49º31’12.30”W), 1♁ (MPEG 37091, PBI _ OON 52664 ) .

Etymology. The specific name is a noun in apposition referring to the location of the type locality, in the delta of the Amazon River.

Diagnosis. Males differ from those of other species with long endite’s P1, reaching at least the anterior margin of the sternum ( H. harveyi sp. nov., H. erebai sp. nov., H. periclitata sp. nov., H. fannesi sp. nov., H. tallitae sp. nov. and H. platnicki sp. nov.) as follows: from H. harveyi sp. nov. by the relatively shorter endite’s P1 (reaching the anterior margin of sternum, Fig. 25C ; reaching the middle of sternum in H. harveyi sp. nov., Fig. 16A ); from H. fannesi sp. nov. and H. erebai sp. nov. by the straigth tip of endite’s P1 ( Fig. 25C ) (folded ventrally in H. fannesi sp. nov., Fig. 18C ; twisted lateraly in H. erebai sp. nov., Fig. 20C ); from H. periclitata sp. nov. by the curved, not longitudinally oriented endite’s P1 ( Fig. 25C ) (longitudinally oriented in H. periclitata sp. nov., Fig. 23B ); from H. tallitae sp. nov. and H. platnicki sp. nov. by the divergent endite’s P1 ( Fig. 25C ) (convergent in both H. tallitae sp. nov. and H. platnicki sp. nov., Figs 28C , 31B ).

Description. Male (PBI_OON 52669). Total length 1.49. CEPHALOTHORAX: Carapace dark red-brown, without any pattern, pars cephalica with two posterior humps in lateral view, surface of elevated portion of pars cephalica smooth, sides striated, fovea present ( Figs 24B–C ). Eyes ALE oval, PME circular, PLE oval; posterior eye row straight from above, procurved from front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius ( Fig. 24E ). Sternum as long as wide, orange-brown, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow with rows of small pits, surface smooth, without pits, microsculpture absent; prosoma pedicelar region with process ( Figs 24D , 25B ). Mouthparts: Chelicerae distal region unmodified ( Fig. 24E ). Labium anterior margin not indented at middle, as long as wide ( Fig. 25D ). Endites with a median projection (mp), a P1 and a P2; mp short, directed anteriorly; P1 long, situated posteriorly to mp, directed posteriorly. P2 lamellar, tip narrow, situated anteriorly to mp ( Figs 24H , 25C–F ). ABDOMEN: dorsum soft portions orange-brown. Book lung covers small, very narrow. Dorsal scutum dark red-brown, covering full length of abdomen, no soft tissue visible from above. Epigastric scutum not protruding. Postepigastric scutum dark red-brown, almost semicircular, covering nearly full length of abdominal length ( Figs 24B,G , 25G ). LEGS: orange-brown. GENITALIA: Epigastric region with sperm pore situated at level of posterior spiracles. Palp proximal segments orange-brown; embolus tip flattened, not bent upwards; conductor present, without projections, as long as embolus, tip flattened ( Figs 24G–I ).

Female. Unknown.

Other material examined. Brazil. Pará. Cametá: Comunidade Umazizal (02º10’27.10”S, 49º30’44.90”W), Oct. 24–27, 2016, N.M. Feitosa et al., 1♁ (MPEG 37092, PBI _ OON 52668 ); (02º11’04.50”S, 49º31’12.30”W) , 1♁ (MPEG 37093, PBI _ OON 52667 ); (02º09’58.79”S, 49º33’35.44”W) , 1♁ (MPEG 37095, PBI _ OON 52666 ) . Vila de Curuçambaba (02º11’04.50”S, 49º31’12.30”W) Oct. 31–Nov. 03, 2016, 1♁ (MPEG 37094, PBI _ OON 52644 ) .

Distribution. Known only from Cametá, northeastern state of Pará, Brazil ( Map 2 ).

Figures

MAP 2. Distribution of Hexapopha species.

FIGURES 16A–L. Hexapopha harveyi sp. nov., SEM images. A–G male (MPEG 37880; PBI_OON 46845). H–L female (PBI_OON 46058). A carapace, ventral view. B mouthparts, ventral view. C right endite, detail of projections. D detail of projection P1 of endites. E–F embolus. E prolateral view. F retrolateral view. G left palp, retrolateral view. H abdomen, ventral view (arrow: epigastric scutum). I detail of H, showing postepigastric scape. J epigastric region, ventral view. K internal genitalia, dorsal view. L detail of K, showing anterior sclerite. Abbreviations: as, anterior sclerite; mp, median projection; P, projection; sc, postepigastric scape; vs, ventral surface of distal hook of posterior sclerite.

FIGURES 18A–I. Hexapopha fannesi sp. nov., male, SEM images (MPEG 10860; PBI_OON 45340). A–B carapace. A lateral view. B ventral view. C mouthparts, ventral view. D endites, lateral view. E detail of D, showing projection P1. F–G left palp. F prolateral view. G retrolateral view. H–I embolus. H prolateral view. I retrolateral view. Abbreviations: la, labium; mp, median projection; P, projection.

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 23A–L. Hexapopha periclitata sp. nov., SEM images. A–H male (IBSP 69641; PBI_OON 52517). I–L female (IBSP 69699; PBI_OON 52565). A carapace, ventral view (arrow: process of prosoma pedicelar region). B mouthparts, ventral view. C–D endites. C lateral view. D ventral view, detail of projection P2. E–F left palp. E prolateral view. F retrolateral view. G–H embolus. G prolateral view. H retrolateral view. I–J epigastric region. I ventral view (arrow: postepigastric scape). J posterior view, showing slit-shaped opening. K internal genitalia, dorsal view. L detail of K, showing genital duct. Abbreviations: as, anterior sclerite; d, duct; mp, median projection; P, projection; vs, ventral surface of distal hook of posterior sclerite.

FIGURES 24A–I. Hexapopha delta sp. nov., male (MPEG 37092; PBI_OON 52668). 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 25A–L. Hexapopha delta sp. nov., male, SEM images (MPEG 37092; PBI_OON 52668). A–B carapace. A lateral view. B ventral view. C–D mouthparts, ventral view. E endites, ventral view. F detail of E, showing projection P2. G abdomen, ventral view. H sperm pore, ventral view. I–J left palp. I prolateral view. J retrolateral view. K–L embolus. K prolateral view. L retrolateral view. Abbreviations: mp, median projection; P, projection.

FIGURES 28A–L. Hexapopha tallitae sp. nov., SEM images. A–I male (MPEG 37103; PBI_OON 46100). J–L female (MPEG 37097; PBI_OON 44879). A–B carapace. A lateral view. B ventral view. C mouthparts, ventral view. D–E endites, lateral view (asterisk: prolateral process of P1). F–G left palp. F prolateral view. G retrolateral view. H–I embolus. H prolateral view. I retrolateral view. J epigastric region, ventral view. K internal genitalia, dorsal view. L detail of K, showing genital duct. Abbreviations: d, duct; mp, median projection; P, projection.

FIGURES 31A–L. Hexapopha platnicki sp. nov., SEM images. A–H male (MPEG 37731; PBI_OON 45513). I–L female (MPEG 37731; PBI_OON 45513). A carapace, ventral view. B endites, ventral view (asterisk: prolateral process of P1). C detail of B, showing projection P2. D abdomen, lateral view. E–F left palp. E prolateral view. F retrolateral view. G–H embolus. G prolateral view. H retrolateral view. I carapace, ventrolateral view. J epigastric region, ventral view. K internal genitalia, dorsal view. L detail of K, showing T-shaped anterior genitalic process.Abbreviations: as, anterior sclerite; d, duct; mp, median projection; P, projection.