New cocalodine jumping spiders from Papua New Guinea (Araneae: Salticidae: Cocalodinae)
Author
Maddison, Wayne P.
text
Zootaxa
2009
2021
1
22
journal article
10.5281/zenodo.186069
99d44e7b-46c3-47a2-9695-3ea43c4186a0
1175-5326
186069
Tabuina varirata
new species
(
Figs 31–43
)
Type
material.
Holotype
male in
UBC
–
SEM
with labels: "
PAPUA
NEW
GUINEA
: Central Province:
Varirata
National Park.
S 9.436
E 147.364
. elev.
740 m
a.s.l.
4 August 2008
. W. Maddison, A.
Kore
& J.
Kore
. WPM#08–029.", "
Tabuina varirata Maddison
,
Holotype
", and "
UBC
–
SEM AR
00028".
Paratypes
:
1 female
,
5 juveniles
, same data as
holotype
(
UBC
–
SEM
).
Etymology.
Named after the
type
locality.
Diagnosis.
Male resembles that of
Portia fimbriata
Doleschall
, but can quickly be distinguished by having a prominent conductor and median apophysis on the palpus. Among cocalodines the bands of white descending diagonally from the AME on the face are distinctive (
Figs 32, 34
), as is the broad band of white on the lower sides of the male carapace (
Fig. 32
). The conductor and median apophysis are similarly shaped, almost mirror images of one another (
Fig. 37
).
Description.
Male
(
holotype
). Carapace length 2.6; abdomen length 3.3. Chelicerae: large but not elongate or projecting. Three promarginal and three retromarginal teeth. Palpus (
Figs 37–39
) with prominent median apophysis and conductor side by side. Conductor is large and sclerotized but not expanded into a broad fan as in
Cocalodes
. Tibia of first leg with 3 pairs of ventral macrosetae; first metatarsus with 3 pairs. Carapace high; posterior eyes on mild tubercles. PME large, angled diagonally forward. Intercheliceral sclerite not enlarged into a visible horn. Colour (
Figs 31, 32, 34
): carapace covered with brown recumbent hairs above, black along sides of thorax, and with broad white band along lateral margin that continues diagonally upward to touch AME on face. Palp clothed in white; legs black and brown. Abdomen black laterally but medially with broad tan-colored longitudinal band.
Female
(
paratype
, UBC–SEM AR00029). Carapace length 3.5; abdomen length 4.3. Chelicerae: three promarginal and three retromarginal teeth. Palp with tarsal claw. Tibia of first leg with three pairs of ventral macrosetae; first metatarsus with three pairs. Epigynum (
Figs 42–43
): two small openings just in front of lobes along the posterior margin. Carapace (
Figs 40–41
) as in male. Colour (
Figs 33, 35, 36
): strongly but cryptically marked with brown and cream.
Natural history.
All specimens were found on a single conifer tree (
Podocarpaceae
or
Cupressaceae
, possibly
Dacrydium
or other with similar leaves;
Fig. 89
) in a clearing in a rainforest that borders savannah. They were found amongst the leaves by beating. Their density appeared quite high, but inaccessibility of most branches limited the number of specimens collected.