Hexapopha harveyi, 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 : 28-31

Hexapopha harveyi sp. nov.

Figs 2A,C , 14–16 ; Map 2

Type material: Holotype: male from Fazenda Tanguro , Querência, Mato Grosso, Brazil (12º49’47.6”S, 52º27’28.0”W), Jun. 13–20, 2006, D.F. Candiani & N.F. Lo Man Hung leg., deposited in MPEG 15292, PBI_OON 45822 . Paratypes: same data as holotype, 1♁ (MPEG 15293, PBI _ OON 45833 ) ; 1♁ (MPEG 37880, PBI _ OON 45845 ); (12º55’53.0”S, 52º26’49.1”W), Jun. 06–13, 2006, 1♀ (MPEG 15285, PBI _ OON 45835 ); Jun. 16–18, 2006, 2♀ (MPEG 15339, PBI _ OON 46030 ) .

Etymology. The specific name is a patronym honoring the arachnologist Mark Harvey (Western Australian

Museum) recognizing his great contribution to the Goblin Spiders PBI.

Diagnosis. Males differ from those of other species with long endite’s P1 (reaching at least the anterior margin of the sternum) ( H. fannesi sp. nov., H. erebai sp. nov., H. periclitata sp. nov., H. delta sp.) by the very elongated endite’s P1, reaching the middle of the sternum ( Figs 14F , 16A ) (shorter, not reaching the middle of the sternum in other species). Females are similar to those of H. peba sp. nov. and H. periclitata sp. nov. by the postepigastric scape separated from the postepigastric plate but can be recognized by the postepigastric scape located near the spinnerets ( Figs 16H–I ) (not surpassing the middle of the postepigastric scutum in H. peba sp. nov. and H. periclitata sp. nov.).

Description. Male (PBI_OON 45822). Total length 1.60. CEPHALOTHORAX: Carapace orange-brown, with Coxapopha -like pattern, pars cephalica with two posterior humps in lateral view, surface of elevated portion of pars cephalica smooth, sides scaly, fovea present ( Figs 14B–D ). 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. 14E ). Sternum as long as wide, pale orange, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow smooth, radial furrow opposite coxae III absent, surface smooth, without pits, microsculpture everywhere but front, prosoma pedicelar region with process; with vestigial sclerotized triangle in male ( Figs 16 BA–B). Mouthparts: Chelicerae distal region unmodified ( Fig. 14E ). Labium anterior margin anteriorly projecting at middle, as long as wide ( Fig. 16B ). Endites with a median projection (mp), a P1 and a P2; mp very short, inconspicuous; P1 hornlike, situated posteriorly to mp, anterior margin serrated. P2 lamellar, situated anteriorly to mp, margin serrated ( Figs 14F , 16A–D ). ABDOMEN: dorsum soft portions pale orange. Book lung covers small, very narrow. Dorsal scutum pale orange, covering full length of abdomen, no soft tissue visible from above. Epigastric scutum not protruding. Postepigastric scutum pale orange, long, semicircular, covering nearly full length of abdominal length ( Figs 14A–B,G ). LEGS: yellow. GENITALIA: Epigastric region with sperm pore situated posteriorly in relation to posterior spiracles. Palp proximal segments yellow; embolus tip flattened, not bent upwards; conductor present, without projections, longer than embolus, broader at base ( Figs 14G–I , 16E–G ).

Female (PBI_OON 46030). As in male except as noted. Total length 1.57. CEPHALOTHORAX: Carapace without any pattern, pars cephalica strongly elevated in lateral view ( Figs 15B–C ). Eyes posterior eye row recurved from above; PME separated by less than their radius ( Fig. 15E ). Sternum microsculpture medially and in furrows ( Fig. 15D ). Mouthparts: Chelicerae, endites and labium pale orange. Labium rectangular, anterior margin not indented at middle ( Fig. 15D ). GENITALIA: Ventral view: postepigastric plate large, reaching the middle of the abdomen; postepigastric scape present, separated from the postepigastric plate, located at the posterior part of the postepigastric scutum, near the spinnerets; copulatory orifice slit-shaped, very narrow, measuring almost 2/3 of the postepigastric plate size. Dorsal view: anterior genitalic process with straight arms ( Figs 15G–H , 16H–L ).

Other material examined. Brazil. Mato Grosso. Querência: Fazenda Tanguro (12º49’55.0”S, 52º20’21.6”W) , Jun. 02–04, 2006, 2♀ (MPEG 15329, PBI _ OON 46021 ) ; 1♀ (MPEG 1533 PBI _ OON 46033 ); (12º53’28.04”S, 52º22’25.0”W) , Jun. 07–14, 2006, 1♀ (MPEG 15294, PBI _ OON 45873 ) ; 1♀ (MPEG 37881, PBI _ OON 46058 ) .

Distribution. Known only from type locality, Querência, state of Mato Grosso, Brazil ( Map 2 ).

Figures

FIGURES 2A–E. Hexapopha spp., A H. harveyi sp. nov., correlation in size between male endites and female genitalia: male (MPEG 37880; PBI_OON 45845) carapace on the left, female (MPEG 37881; PBI_OON 46058) abdomen on the right. B–E male endites, ventral view. B H. una sp. nov. C H. harveyi sp. nov. D H. fannesi sp. nov. E H. ubicki sp. nov. Abbreviations: la, labium; mp, median projection; P, projection; pmp, posteromedian part of endite.

MAP 2. Distribution of Hexapopha species.

FIGURES 14A–I. Hexapopha harveyi sp. nov., male (MPEG 37880; PBI_OON 45845). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D posterior 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 15A–H. Hexapopha harveyi sp. nov., female (MPEG 15331; PBI_OON 46033). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F spinnerets, ventral view. G–H epigastric region. G ventral view. H dorsal view. Scale bars: 0.1mm.

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.