Masteria otongachi Dupérré & Tapia, 2021

Dupérré, Nadine, Tapia, Elicio, Quandt, Dietmar, Crespo-Pérez, Verónica & Harms, Danilo, 2021, From the lowlands to the highlands of Ecuador, a study of the genus Masteria (Araneae, Mygalomorphae, Dipluridae) with description of seven new species, Zootaxa 5005 (4), pp. 538-568 : 560-567

Masteria otongachi Dupérré & Tapia , new species

Figs 18A, B , 19A–D , 21B , 23C , map 1.

Type material. Male holotype from Ecuador, Cotopaxi, La Union del Toachi, Otongachi Natural Reserve (- 00.330510 -78.934420) 25 Feb. 2020, 1087m, pitfall, N. Dupérré , E.E. Tapia, I.G. Tapia ( QCAZ) . Paratypes: Ecuador: Cotopaxi Province: La Union del Toachi, Otongachi Natural Reserve (-00.330510 -78.934420) 18 Feb. 2020, 1087m, pitfall, N. Dupérré , E.E. Tapia, I.G. Tapia ( QCAZ) . OTONGA Biological Reserve, Rio Esmeraldas (-00.41941 -78.99607) 1717m, 24 May-8 June 2014, 1♂, E.E. Tapia, C. Tapia & N. Dupérré ( ZMH-A0015057 ) ; 5-19 Sept. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( QCAZ); (-00.41433 -79.00035) 1888m, 3- 16 Aug. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( ZMH-A0015055 ) ; 5-19 Sept. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( QCAZ) ; 19 Sept.–2 Oct. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( QCAZ) ; 25 Nov.–8 Dec. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( QCAZ); (-00.41994 -79.99623) 1997m, 21 June–2 July 2014, 1♂ ( QCAZ) , 5–19 Sept. 2014, 1♂ , pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( ZMH-A0015056 ); (-00.41564 -79.00452) 2105m, 16 Aug.–5 Sept. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( ZMH-A0015058 ); (-00.42180 -79.01325) 2225m, 16 Aug.–5 Sept. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( QCAZ) .

Other material examined. Cotopaxi Province: OTONGA Biological Reserve , Rio Esmeraldas (-00.41941 -78.99607) 1717m, 25 Nov.–8 Dec. 2014, 2♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( DTC); (-00.41994 -79.99623) 1997m, 25 Nov.–8 Dec. 2014, 1♂, pitfall trap, E.E. Tapia, C. Tapia & N. Dupérré ( QCAZ) .

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

Diagnosis. Males most resemble M. lasdamas n. sp., but can be distinguished by their much larger size (4.41 vs. 2.69); prolateral process of leg I, P1 well sclerotized and triangular ( Fig. 23 C ) whilst P1 inconspicuous in M. lasdamas n. sp. ( Fig. 23B ).

Description. Male (holotype): Total length: 4.41; carapace length: 2.02; carapace width: 1.57; abdomen length: 2.39. Carapace light brown with reticulation in the cephalic groove and pars thoracica, covered with long setae ( Fig. 18A ). Chelicerae yellow; promargin with 11 teeth and ~15 smaller mesobasal teeth. Endites yellow without cuspules. Labium yellow without cuspules. Sternum yellow ( Fig. 18B ). Eyes: six eyes grouped; AME absent, ALE the largest; PLE oval; PME the smallest, oval; posterior row recurved ( Fig. 21B ). Abdomen elongated, whitish-gray covered with long setae ( Fig. 18A ). Spinnerets: PLS 1.78 (0.54/0.59/0.65). Leg formula 4123; leg measurements: I 6.56 (1.77/0.85/1.63/1.22/1.09); II 5.03 (1.39/0.67/1.13/1.00/0.84); III 4.20 (1.05/0.53/0.97/0.89/0.76); IV 6.72 (1.78/0.81/1.51/1.55/1.07). Leg spination: I: d1-1-1; tibiae v1-1, p1; metatarsus v1; II: femur d1-1-1-1; patella v2; tibia v1-1-1ap, p1; metatarsus v1-1, p1; III: femur d1-1-1; patella d1, r1-1; tibia d1-2, v2-1-1, p2-2, r2-2; metatarsus d1-1-2, v1-2ap, p1, r1-1; IV: femur d1-1-1; patella d1, p1; tibia d1-1-1, v1-1-1-2ap, p1-1-1, r1-1-1, metatarsus d1, v1-1-1, p1-1-1, r1-1-1. Tibia I: P1 triangular; P2 with an apical strong spine; P3 with two apical spines ( Fig. 23C ). Metatarsus I with large rounded basal spine ( Fig. 23C ). Palp: palpal tibia 2x size of cymbium, 4x longer than wide ( Fig. 19A, B ); cymbium 2x longer than wide, with four apical spines; palpal bulb elongated-oval, embolus short, sinuous, bent apically ( Fig. 19C ).

Female: unknown.

Distribution. Ecuador: found at two localities in the Cotopaxi Province.

Natural History. Specimens were collected between 1290–2225m in evergreen foothill ( Guevara & Morales 2013) to montane forest (incl. cloud forest) of the occidental Andean mountain range ( Aguirre et al. 2013).

MAP. 1. Distribution map of all new species of Masteria from Ecuador described herein.

Figures

FIGURES 18A, B. Masteria otongachi n. sp. (holotype). A. Male habitus, dorsal view. B. Male habitus, ventral view. Scale bars: 0.5mm.

FIGURES 19A–D. Masteria otongachi n. sp. (holotype).A. Male palp, prolateral view. B. Male palp, retrolateral view. C. Male palpal bulb, prolateral view. D. Male leg I, prolateral view. Scale bars: 0.1mm.

FIGURES 21A, B. Cephalothorax, dorsal view. A. Masteria lasdamas n. sp. (male holotype). B. Masteria otongachi n. sp. (male holotype).

FIGURES 23A–C. Prolateral processes of leg I, male. A. Masteria pasochoa n. sp. (holotype). B. Masteria lasdamas n. sp. (holotype). C. Masteria otongachi n. sp. (holotype).