Six new species of the spider genus Centroctenus Mello-Leitão from the Neotropical region (Ctenidae, Cteninae) Brescovit, Antonio D. Torres, Richard A. Rego, Felipe N. A. A. Polotow, Daniele Zootaxa 2020 2020-11-10 4877 2 311 328 98Z6Q Brescovit & Torres & Rego & Polotow, 2020 Brescovit & Torres & Rego & Polotow 2020 [151,423,1332,1359] Arachnida Ctenidae Centroctenus Animalia Araneae 8 319 Arthropoda species alinahui sp. nov.   Figure 6, 12C   Type material.  Holotypemale from Cabanas Aliñahui ( 01°02’19.2”S, 77°31’57.1”W),  450 masl, 20 kmE Puerto Napo, Napo, Ecuador,  IV/1994, V. Rothcoll., deposited in CAS. Paratypemale with same data, deposited in IBSP 250629.  Additional material examined. None.   Etymology.The species epithet is a noun in apposition taken from the typelocality, Cabanas Aliñahui, in Ecuador.   Diagnosis.  Centroctenus alinahui  sp. n.resembles  C. chalkidisi  sp. n.by the shape of the copulatory bulb sclerites ( Fig. 8B–D), but can be distinguished by the cymbium with prolateral border rounded, RTA distally flat and wide, with indented border and an internal branch with a small rounded projection ( Fig. 6B–D).   Description. Male( holotype).Carapace orange, with cephalic area and lateral borders brown ( Fig. 6A). Legs and palps orange, with coxae yellow. Chelicerae, labium and endites orange. Sternum yellow. Abdomen gray with an orange median dorsal folium, ventrally light gray. Total length 12. Carapace 6.5 long and 5.5 wide. Eye diameters: AME 0.16, ALE 0.12, PME 0.2, PLE 0.18. Chelicerae: promargin with 3 teeth, the median almost twice as high as the laterals; retromargin with 5, basal smaller than others. Leg measurements: I: femur 8.5/ patella 3.1/ tibia 8.8/ metatarsus 8.2/ tarsus 3.1/ total 31.7; II: 8/ 3.2/ 7.8/ 7.3/ 3.1/ 29.4; III: 7/ 2.7/ 6.1/ 7.1/ 2.4/ 25.3; IV: 9.1/ 3/ 8.4/ 11.5/ 2.8/ 34.8. Leg formula: 4123. Leg spination: tibia I-II v2-2-2-2-2, r1-1-0, p1-1-0, III-IV v2-2-2, r1-1-0, p1- 1-0; metatarsus I-IV v2-2-2, r1-1-1, p1-1-1. Palp ( Fig. 5B–D): tibia approximately two times the cymbium length; cymbium oval, distally tapered; tegulum oval; embolus short, curved, with large base; median apophysis enlarged; conductor hyaline, located next to the tip of embolus.  Female.Unknown.   Distribution.Known only from the typelocality ( Fig. 12C). 3044212332 1994-04 V. Roth Ecuador 450 -1.0386666 Puerto 1 -77.53253 8 319 1 Napo holotype