Shuyushka, 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 : 21-22

Shuyushka gen. nov.

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Type species

Shuyushka wachi gen. et sp. nov.

Diagnosis

Shuyushka gen. nov. can be distinguished from other Anyphaeninae genera by the presence of the following characters: tracheal spiracle in the middle of abdomen; lateral margin of endites concave; posterior eye row procurved; prolateral apex of tibia I with patch of short setae ( Fig. 40 ). From WulFlopsis Soares & Camargo, 1955 by the presence of ventral patellar apophysis ( Figs 29 , 34 , 39 ) absent in the latter genera; from Thaloe Brescovit, 1997 by the absence of medial projections on the lateral margin of the endites, present in the latter (Brescovit 1997: Fg. 41). Females of Shuyushka gen. nov. are also distinguished by the absence of lateral epigynal grooves ( Figs 30 , 35 ).

Etymology

The generic name is taken from the Kichwa language meaning ‘spotted’ for the dark marks on the abdomen. The gender is feminine.

Composition

Shuyushka achachay gen. et sp. nov., S. moscai gen. et sp. nov. and S. wachi gen. et sp. nov.

Distribution

Ecuador.

Description

Male

MEASUREMENTS. Medium (5.9–7.8 mm) size spiders.

CEPHALOTHORAX. Sub-rectangular, narrower anteriorly, slightly longer than wide, pars cephalica not elevated; longitudinal fovea short and shallow ( Fig. 27 ). Chilum present, trapezoidal. Clypeus low (1x AME). Endites longer than wide, lateral margin concave medially. Labium longer than wide, constricted submedially, apex excavated. Sternum oval, Fat, longer than wide. Precoxal triangular present.

CHELICERAE. Oblique and robuste, geniculate, promargin and retromargin with 4-5 teeth.

EYES. Eight eyes; AME smallest, less than half the diameter of the others; LE-PME about the same size; AME touching; AME-ALE almost touching, LE contiguous, LE-PME separated by half their width; PME separated by half their width; posterior eye row slightly procurved in dorsal view ( Fig. 27 ).

LEGS. Trochanters notched; scopula sparse, entire on metatarsi and tarsi I–II; absent on metatarsi III–IV, entire on tarsi III–IV; apex of metatarsi III–IV with apical brush; prolateral apex of tibia I with patch of short setae ( Fig. 40 ). Tarsal claws with 5–6 teeth. Legs formula 1423.

LEGS SPINATION RECURRENCE. Femora I–IV d1-1-1, r0-1-1; patellae III–IV r1; tibiae III–IV d1-0-0, v2-2 -2; metatarsi I–II v2-1 -0, r0-1-0, metatarsi III–IV v1-1 -1.

ABDOMEN. Elongated cylindrical, covered with a mix of pale and dark short, none-erected setae and a few dark erected setae; tracheal spiracle recurved, situated in the middle between spinnerets and epigastric groove.

GENITALIA. Palpal femur without apophysis. Palpal patella with two ventral apophyses, and one dorsal apophysis ( Figs 29 , 34 , 39 ). Palpal tibia short, shorter than cymbium; with ( Figs 29 , 34 ) or without blunt ventral apophysis ( Fig. 39 ); retrolateral tibial apophysis bipartite, anterior part globular ( Figs 29 , 39 ), triangular ( Fig. 34 ) and less sclerotized, posterior part well sclerotized, elongated ( Figs 29 , 34 ) or with short spine ( Fig. 39 ). Subtegulum rounded apically; tegulum rounded basally; median apophysis large, hook-shaped; embolus black, heavily sclerotized, prolaterally positioned, wide basally, distally with small triangular extensions and pale terminal segment ( Figs 28 , 33 , 38 ).

Female

MEASUREMENTS. Medium (5.6–5.7 mm) size spiders.

CEPHALOTHORAX AND EYES. As in male.

LEGS. As in male; somewhat shorter in relation to length of the body. Tarsi and metatarsi I–II with dense, entire scopula, metatarsi III–IV without scopula, tarsi III–IV with dense, entire scopula; metatarsi III–IV with apical brush; prolateral apex of tibia I with patch of short setae. Legs formula 4123. Palpal claws with 4 teeth.

LEGS SPINATION RECURRENCE. Femora I–IV d1-1-1; patellae III–IV r1; tibiae I–II v2-2 -0; tibiae III–IV d1- 0-0, p1-1-1; metatarsi I–II v2 -0-0, metatarsi III–IV d0-1-0, v2-2 -2, r1-1-1, p1-1-1.

ABDOMEN. Oval; covered with a mix of pale and dark short, none-erected setae and a few dark erected setae; tracheal spiracle recurved, situated in the middle between spinnerets and epigastric groove.

GENITALIA. Epigynum well sclerotized with ( Fig. 35 ) or without epigynal Fap ( Fig. 30 ); copulatory openings situated lateromedially ( Figs 30 , 35 ). Internal genitalia with large copulatory ducts; spermathecae not well deFned, seminal receptacles positioned at the middle of copulatory ducts course; fertilization ducts long and curved ( Fig. 31 ) or straight ( Fig. 36 ).

Figures

Figs 37 – 40. Shuyushka achachay gen. et sp. nov. 37 .  Ƌ,   abdomen,  dorsal  view.   38 .  Ƌ,   palp,  ventral  view.   39. Ƌ,   palp,  retrolateral  view. 40 .  Ƌ,  tibia  I,  prolateral  view.  Scale  bars:   38 – 39  =  0.05   mm;   37,   40  =  1   mm.  

Figs 27 – 31. Shuyushka wachi gen. et sp. nov. 27 .  Ƌ,   habitus,  dorsal  view.   28 .  Ƌ,   palp,  ventral  view.   29 .  Ƌ,   palp,  retrolateral  view. 30 .  ♀,   epigynum,  ventral  view.   31 .  ♀,  internal  genitalia,  dorsal  view.  Scale  bars: 28 – 31 = 0.1 mm; 27 = 1 mm.

Figs 32 – 36. Shuyushka moscai gen. et sp. nov. 32 .  Ƌ,   abdomen,  dorsal  view.   33 .  Ƌ,   palp,  ventral  view.   34. Ƌ,   palp,  retrolateral  view. 35 .  ♀,   epigynum,  ventral  view.   36 .  ♀,  internal  genitalia,  dorsal  view.  Scale  bars: 33 – 36 = 0.1 mm; 32 = 1 mm.