Patrera witsu, Nadine Duperre & Elicio Tapia, 2016

Nadine Duperre & Elicio Tapia, 2016, Overview of the Anyphaenids (Araneae, Anyphaeninae, Anyphaenidae) spider fauna from the Chocó forest of Ecuador, with the description of thirteen new species, European Journal of Taxonomy 255, pp. 1-50 : 35-37

Patrera witsu sp. nov.

urn:lsid:zoobank.org:act:1001CCDB-43B2-4ED6-B823-C30BFB35A9DC

Figs 49–53

Diagnosis

Males are easily distinguished from all congeneric species by their basally wide and twisted embolus and their large ventral tegular projection ( Fig. 49 ). Females are distinguished by the shallow, pocket-like lateral epigynal grooves ( Fig. 52 ).

Etymology

The speciFc name is a noun in apposition is taken from the Kichwa language meaning ‘twisted’, reFecting the twisted embolus of the male palp.

Type material

Holotype

ECUADOR: Ƌ, Cotopaxi Province, Otonga Biologica Reserve , 24–30 May 2014, night collecting, E. Tapia, C. Tapia and N. Dupérré leg. ( QCAZ) .

Other material examined

ECUADOR: Cotopaxi Province, Otonga Biological Reserve : 1 Ƌ, night collecting, 1 ♀, beating trees, 24–30 May 2014, E. Tapia, C. Tapia and N. Dupérré leg. ( DTC) ; 3 ƋƋ, 2 ♀♀, night collecting, 00.42261° S, 79.5107° W, 2225 m, 4–7 Sep. 2014, E. Tapia, C. Tapia and N. Dupérré leg. ( DTC) ; 2 ♀♀, beating trees, 00.41564° S, 79.00425° W, 2105 m, 4–7 Sep. 2014, E. Tapia, C. Tapia and N. Dupérré leg. ( DTC) ; 1 Ƌ, 2 ♀♀, general collecting, 5–7 Sep. 2014, E. Tapia, C. Tapia and N. Dupérré leg. ( DTC) ; 1 Ƌ, 1 ♀, beating, 00.42261° S, 79.5107° W, 2225 m, 12 Nov. 2014, E. Tapia, C. Tapia and N. Dupérré leg. ( DTC) .

Description

Male (holotype)

MEASUREMENTS. Total length: 4.4; carapace length: 2.2 carapace width: 1.6; abdomen length: 2.2.

CEPHALOTHORAX. Pars cephalica light yellow with pale dusk lines behind PLE; pars thoracica light yellow. Fovea dark. Sternum light yellow, margin slightly darker. Labium and endites light orange-brown.

CHELICERAE. Chelicerae light orange-brown. Posterior side with large tooth, narrow and triangular; promargin with 4, retromargin with 5 teeth ( Fig. 51 ).

LEGS. Femora yellow, tibiae, metatarsi and tarsi light yellow-orange. Total length: I: 9.8; II: 8.5; III: 5.4; IV: 7.8; leg articles length (femur/patella/tibia/metatarsus/tarsus): leg I 2.5/0.9/2.7/2.5/1.2; leg II 2.1/0.9/2.3/2.2/1.0; leg III 1.5/0.7/1.2/1.5/0.5; leg IV 1.9/0.8/1.9/2.4/0.8.

LEGS SPINATION. Metatarsus I v2-2 -0. Metatarsus II v2-2 -0. Tibia III d0-1-1, v2-2 -1; metatarsus III d0-1- 1, v2-2 -0. Tibia IV d0-1-1, v2-2 -2; metatarsus IV d0-1-1, v2-2 -1. Tarsal claws unipectinate; retrolateral claws I–IV with 4-5 teeth, prolateral claws I–II with 10 teeth, prolateral claws III–IV with 5 teeth.

ABDOMEN. Oval. Dorsally yellowish with faint dusky chevrons.

GENITALIA. Palpal patella without apophysis. Palpal tibia shorter than cymbium ( Fig. 50 ); anterior part of retrolateral tibial apophysis plate-like, posterior part thin, triangular ( Fig. 50 ). Subtegulum rounded apically; tegulum elongated oval; dorsal projection of subtegulum well sclerotized with blunt tip; ventral projection of tegulum, large and plate-like; median apophysis short, hook-shaped; embolus wider basally, laminar and twisted ( Fig. 49 ).

Female

MEASUREMENTS. Total length: 5.5; carapace length: 2.2; carapace width: 1.7; abdomen length: 3.3.

CEPHALOTHORAX AND ABDOMEN. As in male.

CHELICERAE. Cheliceral promargin with 3 teeth, retromargin 7 teeth.

LEGS. As in male. Total length: I: 11.4; II: 10.2; III: 6.7; IV: 9.3; leg articles length (femur/patella/tibia/ metatarsus/tarsus): leg I 3.1/1.2/3.0/2.6/1.5; leg II 2.7/1.0/2.8/2.5/1.2; leg III 1.8/0.8/1.5/1.9/0.7; leg IV 2.6/0.9/2.1/2.8/0.9.

LEGS SPINATION. Femur I p1-1-1, r0-1-1; tibia I v2-2 -0; metatarsus I v2-2 -0. Femur II p1-1-1, r0-1-1; tibia II v2-2 -0; metatarsus II v2-2 -0. Femur III p0-0-1, r0-1-1; tibia III d0-1-1, v2-2 -0; metatarsus III d0-1-1, v1-1 -0. Femur IV p0-0-1, r0-0-1; tibia IV d0-1-1, v2-2 -0; metatarsus IV d0-1-1, v1-1 -0. Tarsal claws unipectinate; retrolateral claws I–IV with 6–7 teeth, prolateral claws I–II with 14 teeth, prolateral claws III–IV with 4 teeth. Palpal claws with 3 teeth.

GENITALIA. Epigynum with spatula-like median knob; atrium large; lateral epigynal grooves shallow, pocket-like ( Fig. 52 ). Internal genitalia; short, oblique copulatory ducts; spermathecae rounded; fertilization ducts short, directed outwardly ( Fig. 53 ).

Natural history

All specimens were collected at night or by beating trees.

Distribution

Ecuador: known only from the type locality.

Figures

Figs 49 – 53. Patrera witsu sp. nov. 49 .  Ƌ,   palp,   ventral  view.   50. Ƌ,   palp,   retrolateral  view. 51 .  Ƌ,   chelicerae, posterior view. 52 .  ♀,   epigynum,  ventral  view.   53 .  ♀,  internal  genitalia,  dorsal  view.  Scale  bars: 49 – 50, 52 – 53 = 0.1 mm; 51 = 0.5 mm.