Hexapopha delta Feitosa & Ott & Bonaldo 2023, sp. nov.
Creators: name: Feitosa, Níthomas M.
name: Ott, Ricardo
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Oonopidae
Hexapopha
Hexapopha delta

description: 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).
description: Published as part of 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), pp. 1-150 in Zootaxa 5329 (1) on page 41, DOI: 10.11646/zootaxa.5329.1.1, http://zenodo.org/record/8244009