Canaima perlonga Huber, 2020

Huber, Bernhard A. & Villarreal, Osvaldo, 2020, On Venezuelan pholcid spiders (Araneae, Pholcidae), European Journal of Taxonomy 718, pp. 1-317 : 20-21

publication ID

https://doi.org/ 10.5852/ejt.2020.718.1101

publication LSID

lsid:zoobank.org:pub:F9E9A91E-488C-4DB1-9361-E788E9AC5BC1

DOI

https://doi.org/10.5281/zenodo.4343867

persistent identifier

https://treatment.plazi.org/id/4CD21277-92EC-47AC-95AC-03FC3D2462A3

taxon LSID

lsid:zoobank.org:act:4CD21277-92EC-47AC-95AC-03FC3D2462A3

treatment provided by

Valdenar

scientific name

Canaima perlonga Huber
status

sp. nov.

Canaima perlonga Huber View in CoL sp. nov.

urn:lsid:zoobank.org:act:4CD21277-92EC-47AC-95AC-03FC3D2462A3

Figs 58–61 View Figs 58–61 , 72–74 View Figs 72–80 , 1034

Diagnosis

Distinguished from congeners by armature of male chelicerae ( Fig. 60 View Figs 58–61 ; pair of short frontal apophyses, similar to C. merida Huber, 2000 ), by shape of procursus ( Fig. 59 View Figs 58–61 ; distinctive bifid tip), and by internal female genitalia ( Figs 61 View Figs 58–61 , 74 View Figs 72–80 ): pore plates close together; with large and complex anterior median receptacle; tongue-shaped posterior membranous process (arrow in Fig. 61 View Figs 58–61 ; similar to C. loca Huber sp. nov.); note that female of C. merida is unknown.

Etymology

The species name (Latin: laborious, painful, cumbersome) refers to the difficulty we had finding this tiny spider; adjective.

Type material

VENEZUELA – Lara • ♂ holotype, ZFMK (Ar 21825), Yacambú National Park, along Sendero Ecológico (9.710° N, 69.578–69.582° W), ~ 1550 m a.s.l., 15–16 Dec. 2002 (B.A. Huber, A. Pérez González) GoogleMaps .

Other material examined

VENEZUELA – Lara • 2 ♂♂, 3 ♀♀, ZFMK (Ar 21826), same collection data as for holotype GoogleMaps .

Description

Male (holotype)

MEASUREMENTS. Total body length 1.35, carapace width 0.65. Distance PME–PME 45 µm; diameter PME 60 µm; distance PME–ALE 45 µm; AME absent. Leg 1: 6.80 (1.65+0.20 + 1.75 +2.40 +0.80), tibia 2: 1.00, tibia 3: 0.80, tibia 4: 1.15; tibia 1 L/d: 35.

COLOR (in ethanol). Prosoma and legs ochre-yellow, carapace with thin median dark line; legs without dark rings; abdomen pale greenish gray, dorsally and laterally densely covered with dark bluish marks. BODY. Habitus similar to C. loca Huber sp. nov. (cf. Fig. 50 View Figs 50–57 ). Ocular area slightly raised. Carapace with distinct thoracic groove. Clypeus unmodified. Sternum wider than long (0.45/0.35), with pair of anterior humps. Abdomen oval.

CHELICERAE. As in Fig. 60 View Figs 58–61 , with very short entapophyses and pair of simple frontal apophyses.

PALPS. As in Figs 58–59 View Figs 58–61 ; coxa with distinct retrolateral apophysis, trochanter with small ventral process, femur proximally with retrolateral-ventral process, distally with retrolateral ventral apophysis (arrow in Fig. 59 View Figs 58–61 ) and smaller prolateral ventral hump; tibia very short, dorsally rounded, not angular; procursus distally bifid; genital bulb with large process distally provided with weakly sclerotized pointed elements.

LEGS. Without spines and curved hairs; with higher than usual density of vertical hairs on tibiae; retrolateral trichobothrium of tibia 1 at 23%; prolateral trichobothrium absent on tibia 1; tarsus 1 with ~12 pseudosegments, distally fairly distinct.

Male (variation)

Tibia 1 in two other males: 1.85, 2.00.

Female

In general similar to male but without humps on sternum, with usual low number of vertical hairs on tibiae. Tibia 1 in two females: 1.40, 1.45. Epigynum ( Fig. 72 View Figs 72–80 ) light brown anterior plate apparently divided into anterior and posterior parts, with short tongue-shaped posterior process (arrow in Fig. 61 View Figs 58–61 ; internal?), large posterior plate light brown. Internal genitalia ( Figs 61 View Figs 58–61 , 74 View Figs 72–80 ) with pore plates close together; with large and complex anterior median receptacle.

Distribution

Known from type locality only, in Venezuela , Lara (Fig. 1034).

Natural history

The spiders were found under decaying logs and dead leaves on the ground.

ZFMK

Germany, Bonn, Zoologische Forschungsinstitut und Museum "Alexander Koenig"

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Canaima

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