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 copricola
sp. n.
Figs 4
,
22–25
,
59
Etymology: From Latin
copros
(dung) and
colere
(to dwell in). The species name was suggested by Dr R.F. Lawrence (
in litt
.), who marked the
type
specimens as being a new species but did not publish its description.
Diagnosis: The species is recognized by the combination of long, slender, blunt abdominal setae and the epigyne having a shallow hood over a small round opening (
Fig. 24
), with the internal organs visible as two light brown kidney-shaped structures below the hood (
Fig. 24
). The embolus of the male palp is short, winding less than once around tegulum, with the tip slender and straight; VTA broad (
Fig. 23
); RTA with short distal tooth when viewed laterally (
Fig. 22
). The male palp resembles that of
H. zanii
sp. n.
(
Fig. 53
) but differs in the shape of the RTA, having a single tooth and the uniquely shaped abdominal setae (
Fig. 4
).
Figs 22–29. (22–25)
Heriaeus copricola
sp. n.
: (22) male palp, ventral view; (23) male palp, lateral view; (24) epigyne, ventral view; (25) epigyne, dorsal view; (26–29)
Heriaeus crassispinus
Lawrence, 1942
: (26) male palp, ventral view; (27) male palp, lateral view; (28) epigyne, ventral view; (29) epigyne, dorsal view.
Description:
Female
(
allotype
).
Size
: TL 4.88, CL 2.31, CW 2.04.
Colour
: Carapace with two longitudinal brown bands extending to PEs; setae brown; clypeus
w
ith brown marks; sternum white along edge; chelicerae yellow-brown; eye region white. Abdomen beige, mottled with white, with faint transverse lines posteriorly as well as a number of dark brown markings; venter white with fine hairs, with some brown spots laterally. Legs beige with brown spot on proximal end of tibiae and distal ends of metatarsi III and IV; some white mottling on coxae.
Carapace
:
Eye measurements
: AME–AME 0.14, ALE–AME 0.30, PME–PME 0.22, PLE–PME 0.31, AME–PME 0.24, MOQL AME–PME 0.31, MOQAW AME– AME 0.36, MOQPW PME–PME 0.28.
Leg measurements
: leg I Fe 1.89, Pat 1.04, Tib 1.76, Mt 1.80,Ta 0.51, total 7.0; leg II Fe 1,50, Pat 0.82, Tib 1.23, Mt 1.23, Ta 0.36, total 5.14; leg III Fe 0.92, Pat 0.59, Tib 0.74, Mt 0.74, Ta 0.55, total 3.54; leg IV Fe 1.37, Pat 0.41, Tib 0.94, Mt 0.76, Ta 0.48, total 3.96.
Abdomen
: Oval, truncated anteriorly, with long slender either transparent or pale brown setae with blunt tips; darker brown setae along lateral edge of dorsum.
Epigyne
: Hood shallow with small round opening, internal organs visible as two pale brown kidney-shaped structures, touching anteriorly and narrower posteriorly (
Fig. 24
); copulatory ducts large and bulbous anteriorly, tubular posteriorly (
Fig. 25
).
Male
(
holotype
).
Size
: TL 3.88, CL 1.89, CW 1.70.
Colour
: Carapace with two longitudinal brown bands extending to PEs and into eye region; setae brown (
Fig. 4
); chelicerae yellow-brown; clypeus with brown marks; eye region white. Abdomen brown, mottled with white; laterally with some brown marks; setae on abdomen dark brown with dark spots at their bases laterally; venter white, covered with fine hairs. Legs yellowbrown, with white spot on each coxa.
Carapace
:
Eye measurements
: AME–AME 0.23, ALE–AME 0.53, PME–PME 0.23, PLE–PME 0.30, AME–PME 0.21, MOQL AME–PME 0.29, MOQAW AME–AME 0.28, MOQPW PME–PME 0.29.
Leg measurements
: leg I Fe 2.69, Pat 0.76, Tib 2.23, Mt 2.17, Ta 1.06, total 8.91; leg II Fe 2.26, Pat 0.64, Tib 1.76, Mt 1.56, Ta 0.99, total 7.21; leg III Fe 1.31, Pat 0.44, Tib 1.02, Mt 0.71, Ta 0.58, total 4.06; leg IV Fe 1.62, Pat 0.37, Tib 0.97, Mt 0.87, Ta 0.54, total 4.37.
Abdomen
: Oval, truncated anteriorly, but narrower than that of female.
Male palp
: Embolus short, winding less than once around tegulum; embolus tip slender and straight (
Fig. 22
); VTA short, somewhat flattened but variable in shape; RTA broad anteriorly, ending in short distal tooth viewed laterally (
Fig. 23
).
Juveniles.
Recognized by long and blunt setae.
Holotype
:
♂
SOUTH AFRICA
:
KwaZuluNatal
:
Pietermaritzburg
(
29.60°S
30.38°E
),
xi.1942
,
R.F. Lawrence
(
NMSA 3844
a).
Allotype
:
1♀
same data as holotype (
NMSA 3844
b).
Paratypes
:
SOUTH AFRICA
:
Gauteng
:
1♂
Krugersdorp
(
26.09°S
27.78°E
),
2.xii.2003
,
H. Roux
,
pitfall trap
(
NCA 2009
/1552)
;
1♀
1♂
Krugersdorp
,
Magaliesberg
,
Farm Nooitgedacht
, 4171Q (
25.88°S
27.52°E
),
2.xii.2003
,
H. Roux
,
pitfall trap
, grassland (
NCA 2010
/2877)
.
KwaZuluNatal
:
3♀
Pietermaritzburg
,
Scottsville
(
29.60°S
30.40°E
),
x.1943
,
R.F. Lawrence
(
NMSA 3906
)
.
Limpop
o
:
1♀
1♂
Polokwane Nat. Res.
(
23.9°S
29.47°E
),
8.xii.2005
,
T. Khoza
&
M. Madiba
, hand sampling, false grassland (
NCA 2008
/1792)
.
Distribution:
South Africa
(
Gauteng
,
KwaZuluNatal
and
Limpopo
) (
Fig. 59
).
Natural history: Most specimens were collected with pitfall traps in grassland and savanna. Adult females were collected in October and December, and males during November and December.