Caloctenus albertoi, Hazzi & Davila, 2012

Hazzi, Nicolas A. & Davila, Diana Silva, 2012, A new species of Caloctenus (Araneae: Ctenidae) from Colombia, Zootaxa 3315 (1), pp. 65-68 : 65-68

Caloctenus albertoi sp. nov.

Figs. 1–4 .

Type material. Holotype: ♀, Cañón del Rio Nima , La Sirena (3° 22´N, 76° 05´W; 2550 m), Valle del Cauca, Colombia, agosto 1994, E. Florez, deposited in MUSENUV 23552 . Paratypes: 2 ♂, 3♀, same data as holotype, deposited in IMCN 994 and 997 .

Etymology. This species is named after the first author’s father, Alberto Hazzi, in acknowledgement of his support and encouragement.

Diagnosis. Males lack the ventral palpal tibial lobe typical of most other members of this genus. They also have a large retrolateral tibial apophysis with a well-defined distal curvature and the median apophysis has a rounded apex ( Figs 3 A–F ). Females have an epigynal median sector with a posteromedial V-shaped projection, lateral sectors projecting into a short lobe ( Fig 2A ) and each spermatheca has a large head and a broad base ( Fig 2B ). Individuals of both sexes have only three pairs of ventral spines beneath metatarsi I and II.

Description. Female (MUSENUV 23552). Total length 5.62. Coloration in alcohol ( Fig 1A ): Carapace dark brown, with a pale orange longitudinal median band, black pigment around eyes, chelicerae pale orange with two longitudinal gray lines, legs and pedipalps pale orange with irregular dark brown reticulations. Carapace 2.60 long, 2.20; ocular area 0.62 long, 1.22 wide, eye diameters AME:ALE:PME:PLE, 0.14:0.12:0.26:0.25; AME-AME nearly AME diameter; PME separation 0.38 times PME diameter; clypeal height 0.11; sternum 1.25 long, 1.37 wide; labium 0.30 long, 0.47 wide. Leg measurements: I: femur 2.4, patella 0.87, tibia 2.5, metatarsus 2.5, tarsus 1.35, total 9.62; II: 2.5, 0.87, 2.25, 2.25, 1.2, 7.84; III: 2.04, 0.66, 1.68, 1.98, 0.85, 7.21; IV: 2.51, 0.73, 2.4, 2.64, 1.12, 9.4. Leg spination: palpus-femur d0- 0-1-2, p0-0-0-1, r0-0-0-1, patella p0-1-0-0, tibia p0-1-1-1, r0-1-0-1, tarsus p2-1-0, r0-1-0-1; leg I-femur d1-1-1,p0-0-1-1 r1-1-1, tibia v2-2-2-2-2, metatarsus v2-2-2; leg II-femur d1-1-1, p1-1-1-1, r1-0-1-1, tibia v2-2-2-2-2, metatarsus v2-2-2. Epigynum: median sector and lateral lobes clearly delimited by heavily sclerotised margins that contrast noticeably with the almost white copulatory openings located anteriorly, median sector with a V-shaped posteromedial projection, lateral sectors projecting into short lobes ( Fig 2A ). Vulva with short copulatory ducts, spermathecae with large opposing heads (> <-shaped), fertilization ducts located posteriorly ( Fig 2B ).

Male (IMCN 997). Total length 5.31. Coloration in alcohol ( Fig 1B ): Same as female. Carapace 2.65 long, 2.20; ocular area 0.65 long, 1.00 wide, diameter of eyes AME:ALE:PME:PLE, 0.11:0.11:0.20:0.22; AME-AME nearly AME diameter; PME separation 0.50 times PME diameter; clypeal height 0.15; sternum 1.20 long, 1.32 wide; labium 0.30 long, 0.40 wide. Leg measurements: I: femur 2.35, patella 1, tibia 1.8, metatarsus 1.8, tarsus 0.8, total 7.72; II: 2.3, 1, 1.75, 1.8, 0.75, 7.6; III: 2.1, 0.85, 1.7, 1.85, 0.83, 7.33; IV: 2.35, 0.9, 2.25, 2.7, 1.08, 9.28; IV: 2.35, 0.9, 2.25, 2.7, 1.08, 9.28. Leg spination: palpus-femur d0-0-1-2, p0-0-1, r0-0-1, patella p1-0-0, tibia p1-1-0, r0-1-0; leg I-femur d1-1-1, p0-0- 1-1, r1-1-0-1, Tibia p 0-1-1-0, r0-1-1-0, v2-2-2-2-2, metatarsus p0-1-0-0, r0-1-0-0, v2-2-2; leg II-femur d1-1-1, p1-1-1-1, r1-1-1-1, patella r0-1-0, tibia d0-1-0 p0-1-1-0, r0-1-1-0, r0-1-1-0, v2-2-2-2-2, metatarsus p0-1-0-0, r0-1-0-0, v2-2-2. Palp ( Figs 3A–C ): Tibia almost as large as cymbium, partially sclerotized at apex, without ventral lobe. RTA large, broad, with a well-defined distal curvature; cymbium with a distal retrolateral excavation, strongly sclerotized and projecting into a small lobe prolaterally; median apophysis broad at base, deeply concave and with a rounded apex; embolus broad, with a lateral fold near apex, base projecting distally; conductor short and hyaline.

Variation. 3 ♀: Total length 6.10–6.95; carapace 2.70–2.90; femur I 2.35–2.45. 1♂: Total length 5.00; carapace 2.55; femur I missing.

Distribution. Valle del Cauca, Colombia ( Fig 4 ).

Figures

FIGURE 1. Caloctenus albertoi sp. nov, habitus, dorsal view. A, female; B, Male. Scale bars = 2.0 mm.

FIGURE 2. Caloctenus albertoi sp. nov, female genitalia. A, Epigynum, ventral view; B, Vulva, dorsal view. CD= copulatory duct, FD= fertilization duct, HS= head of spermatheca, LL= epigynal lateral lobe, MS= epigynal median sector, BS= Base of spermatheca. Scale bars = 0.20mm.

FIGURE 3. Caloctenus albertoi sp. nov, left male palp. A, ventral view; B, prolateral view; C, retrolateral view; scale bar = 0.60 mm; D, close up of prolateral view; F; close up of bulb; E, close up of RTA, scale bars = 0.30 mm.

FIGURE 4. Distribution records of Caloctenus species.