Aetana omayan Huber, 2005

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 : 55-60

publication ID 10.5852/ejt.2015.162

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Aetana omayan Huber, 2005


Aetana omayan Huber, 2005 View in CoL

Figs 180–181, 187 View Figs 178–188 , 194 View Figs 189–194. — 189–193 , 198–212 View Figs 195–203. — 195–197 View Figs 204–212 , 216–218 View Figs 213–218

Aetana omayan Huber, 2005a: 73–74 View in CoL , figs 104–105, 110–114 (♂ ♀).


The original description was based on a single male and two females. Here we present data on new material from the type locality and a nearby locality, as well as an amended diagnosis to account for the newly described congeners.


Distinguished from closest known relative ( A. abadae Huber , sp. nov.) by male clypeus modification (apophyses wider apart; cf. Huber 2005a: fig. 112), very indistinct ventro-distal apophysis on male palpal femur (distinct in A. abadae Huber , sp. nov., cf. Fig. 190 View Figs 189–194. — 189–193 ), and shape of epigynum (whitish areas larger and closer together; Fig. 216 View Figs 213–218 ). Distinguished from other congeners by bipartite retrolatero-ventral process on procursus ( Huber 2005a: fig. 111), male palpal trochanter with prolateral apophysis (other species only with ventral apophysis), and pair of internal sclerotized pockets in female genitalia ( Fig. 194 View Figs 189–194. — 189–193 ).

New material examined

PHILIPPINES, Luzon Isl., Benguet Prov.: 9 ♂♂, 16 ♀♀, 2 juvs, Baguio, Crystal Cave (16.396° N, 120.572° E), 1360 m a.s.l., 2 Mar. 2014 (B.A. Huber), ZFMK (8 ♂♂, 15 ♀♀; Ar 13990) and MSU-IIT (1 ♂, 1 ♀); 1 ♀, 6 juvs, in pure ethanol, same data, ZFMK (Phi 206). 3 ♀♀, near Baguio, Mt. Kabuyao, N slope (16.374° N, 120.557° E), 1200–1400 m a.s.l., among rocks, 2 Mar. 2014 (B.A. Huber), ZFMK (Ar 13991); 1 ♀, 5 juvs, in pure ethanol, same data, ZFMK (Phi 205).

Description (amendments to Huber 2005a)

MALE. Tibia 2 slightly shorter than tibia 4 (e.g., 7.1/7.3); curved hairs on all tibiae and metatarsi; tibia 1 in 8 males: 9.7–10.9 (mean: 10.4).

FEMALE. Eye triads much closer together than in male (distance PME-PME ~ 180–200 µm vs. 300–400 µm); indistinct stridulatory apparatus between carapace and abdomen: small modified area medially on carapace ( Fig. 187 View Figs 178–188 ) versus light brown hairless area on abdomen; with pair of very indistinct membranous pockets behind epigynum in unmodified cuticle ( Figs 194 View Figs 189–194. — 189–193 , 218 View Figs 213–218 ). Tibia 1 in 16 females: 7.6–8.5 (mean: 8.2).

Huber, 2005.

Natural history

The type locality is a highly degraded and polluted cave in the midst of a suburb of Baguio City. The cave is actually a natural tunnel of about 50 m length, open on both sides. Within the cave, the spiders were found in high numbers, building their typical domed sheet webs mainly along lower parts of the cave walls near the ground, in crevices and small holes. The finding of the same species among rocks on nearby Mt. Kabuyao suggests that the species is actually widespread in the area and not in danger of extinction by further degradation of the cave.


Known from two localities on Luzon Island only (type locality and nearby locality; Fig. 5 View Fig ).














Aetana omayan Huber, 2005

Huber, Bernhard A., Nuñeza, Olga M. & Ung, Charles Leh Moi 2015

Aetana omayan

Huber B. A. 2005: 74
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