Amazoonops ducke, Ott, Ricardo, Ruiz, Gustavo R. S., Brescovit, Antonio D. & Bonaldo, Alexandre B., 2017

Ott, Ricardo, Ruiz, Gustavo R. S., Brescovit, Antonio D. & Bonaldo, Alexandre B., 2017, Amazoonops, a new genus of goblin spiders (Araneae: Oonopidae) from the Brazilian Amazon, Zootaxa 4236 (2), pp. 244-268 : 257-261

Amazoonops ducke sp. nov.

Figs 4–6 , 8 , 16 , 19–23 , 25 , 92–106 , Map 1

Types. Holotype male from Reserva Florestal Adolpho Ducke (02°55’34.97”S 59°56’24.97”W), Manaus, Amazonas, Brazil, 15.XI.2004, S.M. Ketelhut et al. ( INPA 5805 , PBI_OON 40525) . Paratype male from Fazenda Experimental da UFAM, Km 38, BR174 (02°39’21.23”S 60°04’31.25”W), Manaus, Amazonas, Brazil, 19.IX.2008, E.P. Franken & A.C. K. Silva ( MPEG 30947 , PBI_OON 40528) .

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. Males resemble those of A. caxiuana sp. nov. by the endites with prolateral process without protrusions ( Figs 45 , 102 ) and by the lamellar, distally twisted embolus ( Figs 47 , 104 ), but can be recognized by the endites with narrow prolateral process, with a long, curved retrolateral process ( Figs 101–102 ).

Description. Male (PBI_OON 40525, Figs 92–100 ): Total length 1.57. CEPHALOTHORAX: Carapace dark red-brown, broadly oval in dorsal view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, with rounded posterolateral corners, surface of elevated portion of pars cephalica granulate; non-marginal pars cephalica setae present, scattered. Clypeus low, ALE separated from edge of carapace by less than their radius. Eyes ALE–PLE touching, PME touching throughout most of their length, PLE–PME touching. Sternum pale orange, furrow smooth, surface finely punctuate, without pits, anterior margin unmodified, lateral margin without infra-coxal grooves, anterior depression delimited by a straigth ridge; setae densest laterally. Mouthparts: paturon inner margin with pairs of enlarged setae, distal region abruptly narrowed. Labium rectangular; with 6 or more setae on anterior margin. Endites anteromedian tip unmodified, endites strongly incised distally, forming a retrolateral curved branch with blunt tip and a prolateral smaller, apically narrowed branch. ABDOMEN: dorsum soft portions white. Posterior spiracles not connected by groove. Pedicel tube short. Dorsal scutum pale orange, covering more than 3/4 of abdomen, no soft tissue visible from above, middle surface reticulate, sides reticulate. Postepigastric scutum pale orange, long, semicircular, covering about 3/4 of abdominal length, with short posteriorly directed lateral apodemes. LEGS: pale orange; patella plus tibia I shorter than carapace, metatarsi I and II meso-apical comb absent. GENITALIA: Epigastric region with sperm pore situated between anterior and posterior spiracles. Palp: bulb yellow, more than 2 times as long as cymbium, embolus dark, prolateral excavation present, short, lamellar, medially twisted, with large prolateral rounded aperture.

Female: Unknown.

Other material examined. BRAZIL. Amazonas. Manaus, Fazenda Experimental da UFAM, Rod. BR 174 km 38 (02°39’21.23”S 60°04’31.25”W), 26.VI.2009, B. Machado leg., 1♂ ( MPEG 30946 , PBI_OON 40527; examined by SEM).

Distribution. Known only from central Amazonas State, Brazil.

Figures

FIGURES 1 – 6. Amazoonops spp. nov., male cephalothorax. 1 A. cachimbo sp. nov. (MPEG 32653; PBI _ OON 40537), dorsolateral. 2 – 3 A. caxiuana sp. nov. (MPEG 30955; PBI _ OON 40513); 2 antero-lateral; 3 frontal. 4 – 6 A. ducke sp. nov. (MPEG 30946; PBI _ OON 40527); 4 frontal; 5 left posterior corner, dorsal view; 6 detail.

FIGURES 7 – 12. Amazoonops spp. nov., males. 7 A. caxiuana sp. nov. (MPEG 30945; PBI _ OON 40510), sternum, ventral. 8 A. ducke sp. nov. (MPEG 30946; PBI _ OON 40527), sternum, ventral. 9 A. cachimbo sp. nov. (MPEG 32653; PBI _ OON 40537), sternum, ventral (arrow: pits). 10 A. ducke sp. nov. (MPEG 30946; PBI _ OON 40527), labium, ventral. 11 – 12 A. caxiuana sp. nov. (MPEG 30945; PBI _ OON 40510), parapedicelar organ; 11 ventral view; 12 detail.

FIGURES 13 – 16. Amazoonops spp. nov., males, sternum, detail of pits, ventral view. 13 A. caxiuana sp. nov. (MPEG 30945; PBI _ OON 40510). 14 A. juruti sp. nov. (MPEG PBI _ OON 44450). 15 A. cachimbo sp. nov. (MPEG 32653; PBI _ OON 40537). 16 A. ducke sp. nov. (MPEG 30946; PBI _ OON 40527). Arrows: sternal pits.

FIGURES 17 – 23. Amazoonops spp. nov., males. 17 – 18 A. almeirim sp. nov. (MPEG 10408; PBI _ OON 40521), cephalothorax; 17 ventrolateral; 18 ventral (arrows: retrolateral protusions of endite prolateral process) .. 19 – 23 A. ducke sp. nov. (INPA 5805; PBI _ OON 40525); 19 – 22 abdomen, 19 dorsal, 20 ventral, 21 lateral, 22 frontal); 23 cephalothorax, posterior. Abbreviations: DS, dorsal scutum; ES, epigastric scutum; VS, ventral scutum.

FIGURES 24 – 27. Amazoonops spp. nov., males. 24 A. caxiuana sp. nov. (MPEG 30955; PBI _ OON 40513), leg III. 25 A ducke sp. nov. (MPEG 30946; PBI _ OON 40527), leg IV. 26 A. cachimbo sp. nov. (MPEG ???; PBI _ OON 40537), leg I, tarsal organ. 27 A. caxiuana sp. nov. (MPEG 30955; PBI _ OON 40513), leg IV, tarsal organ.

FIGURES 92 – 100. Amazoonops ducke sp. nov., male (INPA 5805; PBI _ OON 40525). 92 habitus, dorsal. 93 – 96 cephalothorax; 93 lateral; 94 dorsal; 95 frontal; 96 ventral. 97 – 100 palp; 97 distal; 98 dorsal; 99 prolateral; 100 retrolateral.

FIGURES 101 – 106. Amazoonops ducke sp. nov., male (MPEG 30946; PBI _ OON 40527). 101 – 102 ventral; 101 mouth parts; 102 detail of endite (arrow: endite prolateral process). 103 – 106 palp; 103 prolateral; 104 retrolateral; 105 dorsal; 106 dorsal, detail of embolus. Abbreviations: B, bulb; Cy, Cymbium; E, embolus.

FIGURES 44 – 49. Amazoonops caxiuana sp. nov., male. 44 – 45 (MPEG 30955; PBI _ OON 40513), ventral; 45 mouth parts; 46 detail of endite. 46 – 49 (MPEG 30945; PBI _ OON 40510), left palp; 46 prolateral; 47 retrolateral (arrow: bulb retrolateral process); 48 detail of embolus, dorsal; 49 distal. Abbreviations: B, bulb; Cy, Cymbium; E, embolus. Arrows: endite prolateral process.