Katissa guayasamini, 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 : 18-20

Katissa guayasamini sp. nov.

urn:lsid:zoobank.org:act:948E2A23-5413-4572-AF09-BB7CAAD3C80C

Figs 22–26

Diagnosis

Males can be distinguished from all congeneric species by their elongated, serrated palpal retrolateral tibial apophysis with small dorsal spur ( Fig. 23 ) and from Katissa yaya sp. nov. by features mentioned in the description. Females are distinguished by their elongated V-shaped epigynal Fap (Fig. 25).

Etymology

The speciFc name is in honor of the Ecuadorian painter, Oswold Guayasamin, in recognition of his unique art work, portraying the struggle of the Mestizo and indigenous people of Ecuador.

Type material

Holotype

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

Other material examined

ECUADOR: Cotopaxi Province, Otonga Biological Reserve : 1 Ƌ, beating trees, 24–30 May 2014, E. Tapia, C. Tapia and N. Dupérré leg. ( DTC) ; 1 ♀, sifting litter, Berlese , E. Tapia, C. Tapia and N. Dupérré leg. ( QCAZ) ; 1 ♀, moss from trees at 0.5–3 m high, 00.44461º S, 79.5107º W, 2225 m, 15 Oct. 2014, E. Tapia, C. Tapia and N. Dupérré leg. ( DTC) .

Description

Male (holotype)

MEASUREMENTS. Total length: 3.2; carapace length: 1.8; carapace width: 1.7.

CEPHALOTHORAX. Pars cephalica and pars thoracica yellow with two dark brown, wide dorsal bands with black mesh pattern; margin dark brown ( Fig. 24 ). Sternum light yellow with two dark brown bands laterally. Labium and endites dark brown.

CHELICERAE. Brown, excavated with antero-prolateral keel; promargin with 4, retromargin with 4–5 teeth.

LEGS. Femora I–II light yellow. Femora IIII–IV light yellow with basal and apical brown bands. Tibiae light yellow with dark band basally. Metatarsi light yellow and tarsi light. Claws unipectinate, I–II with 7 teeth and III–IV with 4 teeth. Total length: I: 7.1; II: 6.0; III: 4.5; IV: 6.4; leg formula 1423; leg articles length (femur/patella/tibia/metatarsus/tarsus): leg I 1.8/0.7/2.0/1.7/0.9; leg II 1.6/0.7/1.6/1.4/0.7; leg III 1.2/0.6/1.0/1.1/0.6; leg IV 1.7/0.7/1.4/1.9/0.7. LEGS SPINATION. Femur I p0-1-1, r1-1-1; tibia I v2-2 -2, p0- 1-1, r0-1-1; metatarsus I v2 -0-0, p1-1-0, r1-0-1. Femur II p1-1-1, r0-1-1; tibia II v2-2 -2, p0-1-1, r0-1-1; metatarsus II v2-2 -0, p1-1-0, r1-0-1. Femur III p0-1-1-, r0-1-1; tibia III d1-1-0, v2-2 -2, p1-1-0, r1-1-0; metatarsus III d0-1-0, v2-2 -0. Femur IV r0-0-1; tibia IV d1-1-0, v2-2 -2, p1-1-0, r1-1-0; metatarsus IV d0-1-0, v2-2 -0.

ABDOMEN. Elongated oval. Dorsally light brown with pattern of dark brown marks ( Fig. 24 ). Covered with black erected setae and short none erected, pale setae.

GENITALIA. Palpal tibia shorter than cymbium; retrolateral tibial apophysis elongated, serrated with remotely positioned spur ( Fig. 23 ). Subtegulum pointed apically with keel; tegulum rounded basally; ventral tegular process wide, pointed apically, not reaching median apophysis tip; median apophysis short, hook-shaped; embolic base protruding prolaterally; embolus ribbon-like, wide and short, completely dark ( Fig. 22 ).

Female

MEASUREMENTS. Total length: 3.4; carapace length: 1.7; carapace width: 1.6.

CEPHALOTHORAX. As in male.

CHELICERAE. Brown, not excavated without antero-prolateral keel; promargin with 3, retromargin with 6 teeth.

LEGS. As in male. Claws as in male. Palpal claws with 5 teeth. Total length: I: 7.1; II: 6.0; III: 4.5; IV: 6.4; leg formula 1423; leg articles length (femur/patella/tibia/metatarsus/tarsus): leg I 1.8/0.7/2.0/1.7/0.9; leg II 1.6/0.7/1.6/1.4/0.7; leg III 1.2/0.6/1.0/1.1/0.6; leg IV 1.7/0.7/1.4/1.9/0.7.

LEGS SPINATION. Femur I p0-1-1; tibia I v2-2 -0, p0-1-1, r0-0-1; metatarsus I v2 -0-0, p0-1-0, r0-1-0. Femur II p0-0-1; tibia II v2-2 -0, p0-1-1, r0-0-1; metatarsus II v2 -0-0, p0-1-0, r0-1-0. Femur III p0-0-1-, r0-0-1; tibia III d1-1-0, v2-2 -2, p1-1-0, r1-1-0; metatarsus III d0-1-0, v2-2 -1. Femur IV p0-0-1, r0-0-1; tibia IV d1-1-0, v2-2 -2, p1-1-0, r1-1-0; metatarsus IV d0-1-0, v2-2 -1.

ABDOMEN. Oval. Colouration as in male.

GENITALIA. Epigynum with V-shaped epigynal Fap; lateral epigynal grooves curved (Fig. 25). Internal genitalia; copulatory ducts short and wide; seminal receptacles positioned at beginning of copulatory ducts course; spermathecae kidney-shaped; fertilization ducts very short ( Fig. 26 ).

Natural history

Most specimens were collected by beating trees and from moss on trees, but one was collected while sifting litter.

Distribution

Ecuador: known only from the type locality.

Figures

Figs 22 – 26. Katissa guayasamini sp. nov. 22 .  Ƌ,   palp,  ventral  view.   23. Ƌ,   palp,  retrolateral  view. 24. Ƌ,   habitus, dorsal view. 25. ♀,   epigynum,  ventral  view.   26 .  ♀,  internal  genitalia,  dorsal  view.  Scale  bars:   22 – 23, 25 – 26 = 0.1 mm; 24 = 1 mm.