Yamangalea frewana, Maddison, Wayne P., 2009

Maddison, Wayne P., 2009, New cocalodine jumping spiders from Papua New Guinea (Araneae: Salticidae: Cocalodinae), Zootaxa 2021, pp. 1-22 : 8

publication ID

https://doi.org/ 10.5281/zenodo.186069

DOI

https://doi.org/10.5281/zenodo.6226954

persistent identifier

https://treatment.plazi.org/id/335D87D7-5E0E-1F14-FF11-5FEC226BAD64

treatment provided by

Plazi

scientific name

Yamangalea frewana
status

new species

Yamangalea frewana   new species

( Figs 20–30 View FIGURES 20 – 30 )

Type material. Holotype male in UBC – SEM with labels: " PAPUA NEW GUINEA: Enga Province: Paiam Forest, near Suyan Village. S 5.495 E 143.144. elev. 2400 m a.s.l. 10 July 2008. W. Maddison, Pingisa Saiké, Yainé Ribson, S. Soté, N. Soté. WPM#08–007", " Yamangalea frewana Maddison   , Holotype ", and " UBC – SEM AR 00016". Paratypes: 3 males, 7 females, 3 juveniles with same data.

Additional material examined. 7 males, 2 females with data " PAPUA NEW GUINEA: Eastern Highlands Province: Mt. Gahavisuka   Provincial Park. S 6.015 E 145.412. elev. 2320 m a.s.l. 1–2 August 2008. W. Maddison. WPM#08-025." 3 females, 3 juveniles with data " PAPUA NEW GUINEA: Eastern Highlands Province: Mt. Gahavisuka   Provincial Park. S 6.016 E 145.417 to S 6.017 E 145.416. elev. 2450 – 2490 m a.s.l. 2 August 2008. W. Maddison. WPM#08–027."

Etymology. Named in honour of Fred Wanless, whose studies of basal salticids, including cocalodines, built the foundations for our modern understanding of the deep structure of salticid phylogeny. The unorthodox patronym " frewana   " was chosen to avoid confusion with the many species among related salticids with the more typical epithet " wanlessi ".

Diagnosis. A small cocalodine from tree trunks and branches, resembling small spartaeines such as Mintonia Wanless.   Males can be recognized by the large hooked median apophysis, much more prominent than the embolus ( Fig. 24 View FIGURES 20 – 30 ); females by the two posterior epigynal openings beside a central lobe ( Fig. 29 View FIGURES 20 – 30 ).

Description. Male (holotype). Carapace length 1.6; abdomen length 1.4. Chelicerae: small, vertical, with three promarginal and four retromarginal teeth. Intercheliceral sclerite not enlarged into a visible horn. Palpus ( Figs 24–26 View FIGURES 20 – 30 ): embolus hidden; begins at prolateral distal corner of bulb, goes dorsally into cymbium then retrolaterally and finally ventrally ( Fig. 25 View FIGURES 20 – 30 ) to end near the tip of the conductor and median apophysis. Median apophysis is the most easily visible dark sclerite; long and hooked. Conductor is membranous, and accompanies median apophysis. Tibia of first leg with three pairs of ventral macrosetae; first metatarsus with three pairs. Carapace of most common salticid form, with eyes not on tubercles. PME large. Colour: Mottled brown, with pale stripe around base of carapace, and pale longitudinal stripes ( Figs 20–21 View FIGURES 20 – 30 ). First legs darkest. Palpus clothed in white hairs.

Female (paratype, UBC – SEM AR 00017). Carapace length 1.9; abdomen length 2.1. Chelicerae: three promarginal and 3–4 retromarginal teeth. Palp with tarsal claw. Tibia of first leg with three pairs of ventral macrosetae; first metatarsus with three pairs. Epigynum ( Figs 29–30 View FIGURES 20 – 30 ) with openings near posterior margin. Carapace and eyes ( Figs 27–28 View FIGURES 20 – 30 ) as in male. Colour: as in male. There are two colour forms of female, the common one ( Fig. 23 View FIGURES 20 – 30 ) similar to the male, and a second paler form known from one female from each of the Paiam Forest and Mt. Gahavisuka   , having broad pale patch dorsally on thorax and abdomen ( Fig. 22 View FIGURES 20 – 30 ).

Natural history. Found only at fairly high elevation on tree trunks and branches ( Fig. 88 View FIGURES 87 – 92 ). Most were found by brushing tree trunks over a beating sheet. The trunks were not heavily covered with mosses.

UBC

University of British Columbia

NEW

University of Newcastle

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Yamangalea