A revision of the crab spider genus Heriaeus Simon, 1875 (Araneae: Thomisidae) in the Afrotropical Region
Author
Niekerk, P. van
Author
Dippenaar-Schoeman, A. S.
text
African Invertebrates
2013
2013-11-14
54
2
447
447
http://www.bioone.org/doi/abs/10.5733/afin.054.0213
journal article
10.5733/afin.054.0213
2305-2562
7918661
Heriaeus madagascar
sp. n.
Figs 8
,
35, 36
,
59
Etymology: The species name is a noun in apposition derived from
Madagascar
.
Diagnosis: The species is recognized by a combination of long spiniform setae with acute tips on the abdomen, a single broad central stripe on the carapace, short strong setae on tibiae and metatarsi I and II (
Fig. 8
), and only four setae on the anterior edge of the clypeus. The male palp is distinguished by the angular shape of the cymbium, which is extended into a blunt extension laterally, the shape of the embolus, a broad flat ITA and a ventral tooth-like lobe on the RTA (
Figs 35, 36
). Female unknown.
Description:
Male
(
holotype
).
Size
: TL 3.02, CL 1.56, CW 1.41.
Colour
: Carapace with a broad brown stripe centrally, darker brown posteriorly; setae brown; chelicerae yellow-brown with brown markings; clypeus brown; eye region yellow-brown; eye tubercles grey.Abdomen creamy with dark mottling; cream with brown spots ventrally; setae brown. Palp with all segments yellow-brown. Legs yellow-brown, with brown marks on femora, tibiae and metatarsi I and II.
Carapace
:
Eye measurements
: AME–AME 0.19, ALE–AME 0.11, PME–PME 0.11, PLE–PME 0.29, AME–PME 0.15, MOQL AME–PME 0.22, MOQAW AME–AME 0.25, MOQPW PME–PME 0.21.
Leg measurements
: leg I Fe 2.20, Pat 0.97, Tib 1.50, Mt 1.38, Ta 0.76, total 6.81; leg II Fe 2.15, Pat 0.89, Tib 1.41, Mt 1.38, Ta 0.70, total 6.53; leg III Fe 1.13, Pat 0.58, Tib 1.13, Mt 0.76, Ta 0.44, total 4.04; leg IV Fe 0.96, Pat 0.53, Tib 0.78, Mt 0.81, Ta 0.45, total 3.53.
Clypeus
: Four setae on anterior clypeal edge.
Abdomen
: Oval, truncated anteriorly, slightly pointed posteriorly (
Fig. 8
), bearing scattered long spiniform setae with acute tips.
Legs
: Tibiae and metatarsi I and II with short strong setae.
Male palp
: Cymbium with blunt extension laterally, forming a narrow ridge for tip of embolus to fit into, embolus long, winding once around tegulum, with sharp angle distally, tip straight and extending dorsally onto cymbium; ITA broad and flat; RTA with long distal tooth and ventral lobe below; VTA knoblike (
Figs 35, 36
).
Holotype
:
♂
MADAGASCAR: Beanana
(
15.73°S
49.47°E
),
ii.1970
,
A. Lambillon
(
MRAC 142.650
).
Paratype
:
♂
MADAGASCAR: Tananarive
(
18.15°S
49.42°E
),
10.xi.1972
,
A. Dhondt
(
MRAC 142.296
)
.
Distribution:
Madagascar
(
Fig. 59
).
Natural history: Males collected during February and November.