Aetana ocampoi Huber, 2015

Huber, Bernhard A., Nuñeza, Olga M. & Ung, Charles Leh Moi, 2015, Revision, phylogeny, and microhabitat shifts in the Southeast Asian spider genus Aetana (Araneae, Pholcidae), European Journal of Taxonomy 162, pp. 1-78 : 9-14

publication ID 10.5852/ejt.2015.162

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Aetana ocampoi Huber

sp. nov.

Aetana ocampoi Huber View in CoL , sp. nov.

Figs 6–7 View Figs 6–12 , 13–25 View Figs 13–15 View Figs 16–19 View Figs 20–25


Easily distinguished from closest known relatives ( A. libjo Huber , sp. nov.; A. baganihan Huber , sp. nov.) by dark coloration ( Figs 6–7 View Figs 6–12 ) and by several details of the male palp ( Figs 13–14 View Figs 13–15 ; long cylindrical bulb; ventral process on femur), male chelicerae ( Fig. 15 View Figs 13–15 ; more proximal position of apophyses), and epigynum ( Figs 16–19 View Figs 16–19 ; short triangular scape).


Named for the Filipino artist Hernando Ruiz Ocampo (1911–1978), famous for his work reflecting the harsh realities of his country after the Second World War, but also for his interest in depicting Philippine flora and fauna.

Material examined


PHILIPPINES: ♂, Luzon, Camarines Sur Prov., Mt. Isarog, W slope (13.664° N, 123.34– 123.35° E), ~ 600–900 m a.s.l., forest, near ground, 23 Feb. 2014 (B.A. Huber), ZFMK (Ar 13927).


Other material

PHILIPPINES: Luzon, 1 ♂, 2 ♀♀ (morph A and morph B), same data as holotype, ZFMK (Ar 13928); 3 ♀♀ (2 ♀♀ morph A, 1 ♀ morph B), in pure ethanol, same data, ZFMK (Phi 222).


Male (holotype)

MEASUREMENTS. Total body length 2.7, carapace width 1.1. Leg 1: 28.3 (6.7 + 0.4 + 6.6 + 11.8 + 2.8), tibia 2: 3.9, tibia 3: 2.7, tibia 4: 4.0; tibia 1 L/d: 59. Distance PME-PME 185 µm, diameter PME 125× 120 µm, distance PME-ALE 20 µm; AME absent.

COLOR. Carapace pale ochre with wide median dark band including ocular area and narrower lateral black margins; clypeus pale ochre, distal half light brown; sternum pale ochre, medially light brown; legs light brown, with dark rings subdistally on femora and proximally on tibiae (incl. patellae); abdomen dorsally densely covered with dark marks and some white marks, ventrally gray, small dark mark behind gonopore, larger dark mark in front of spinnerets.

BODY. Habitus as in Figs 6–7 View Figs 6–12 ; ocular area slightly raised, each triad on low hump; carapace only anteriorly with very shallow and narrow median furrow (rather just a dark line); clypeus unmodified; sternum wider than long (0.60/0.55), unmodified.

CHELICERAE. As in Fig. 15 View Figs 13–15 , with pair of frontal apophyses near median line, without proximal lateral apophyses; without modified hairs; without stridulatory ridges.

PALPS. As in Figs 13–14 View Figs 13–15 , coxa unmodified, trochanter on retrolatero-ventral side with large apophysis fused to femur; femur with large retrolatero-ventral process; retrolateral trichobothrium on tibia very distal; tarsus with semitransparent simple procursus; genital bulb large, cylindrical, with retrolateral apophysis proximally and two distinctive processes distally: dorsal process with sclerotized black tip; ventral process with semitransparent flap.

LEGS. Without spines, with curved hairs on tibiae 1 and metatarsi 1–4, few vertical hairs; retrolateral trichobothrium on tibia 1 at 3%; prolateral trichobothrium absent on tibia 1, present on other tibiae. Tarsus 1 with ~25 pseudosegments, distally distinct.

Male (variation)

Tibia 1 in other male: 7.2; this male paler but otherwise identical.


In general similar to male; eye triads closer together (distance PME-PME 140 µm); tibia 1 in 2 females: 5.5, 5.7. Epigynum apparently dimorphic: three females with small triangular sclerotized scape ( Figs 16 View Figs 16–19 , 20 View Figs 20–25 ; morph A), two females with much wider sclerotized area of epigynum ( Figs 18 View Figs 16–19 , 23 View Figs 20–25 ; morph B); internal genitalia also different, as in Figs 17, 19 View Figs 16–19 , 22, 25 View Figs 20–25 .

Natural history

The spiders were found close to the ground, apparently more deeply hidden under rocks and logs than the sympatric A. lozadae Huber , sp. nov.


Known from type locality only ( Fig. 3 View Figs 3–4 ).


Zoologisches Forschungsmuseum Alexander Koenig













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