New species of Anelosimus (Araneae: Theridiidae) from Africa and Southeast Asia, with notes on sociality and color polymorphism
Author
Agnarsson, Ingi
Author
Zhang, Jun-Xia
text
Zootaxa
2006
1147
1
34
journal article
10.5281/zenodo.172074
54b3bcb4-f13a-4a9a-a076-f995f49a051a
11755326
172074
Anelosimus linda
Agnarsson
n. sp.
(
Figs 18C–D
)
Types
Female
holotype
and
paratype
(1 Ψ) from
Malaysia
, Pahang,
Cameron
Highlands, Arcadia, trail 3,
4°28’55.2”N
,
101°23’16.8"E
,
1550 m
,
21.–23.v.2005
, W. Maddison, D. Li, I. Agnarsson, J. X. Zhang, deposited in NMNH.
Paratype
female in poor condition, lacking legs I.
|
Etymology
|
| The species |
epithet |
is |
a |
noun |
in |
apposition, |
and |
is |
a |
patronym |
after |
my |
mother |
Linda
|
| Wendel. |
Diagnosis
Anelosimus linda
n. sp.
differs form all other
Anelosimus
by the very short copulatory ducts, and small hook–shaped epigynal openings (
Figs 18C–D
).
FIGURES 18A–E.
A
–
B,
A. agnar
n. sp.
A, epigynum, ventral; B, epigynum cleared, dorsal. C
–
D,
A. linda
n. sp.
C, epigynum, ventral; D, epigynum cleared, dorsal (CD copulatory ducts, FD fertilization ducts, S spermathecae). E,
Anelosimus dude
n. sp.
, female opisthosoma ventral, showing setae around the pedicel and the transparency of the cuticle anterior to the epigynum. Scale bar for epigyna: 100 mm.
Description
Female
(
holotype
): Total length 1.90. Prosoma 0.95 long, 0.75 wide, dark brown. Sternum 0.65 long, 0.60 wide, brown. Opisthosoma 1.05 long, 0.90 wide. Pattern as in other
Anelosimus
, dark dorsal notched folium, edged by a narrow white rim. Eyes subequal in size about
0.10 in
diameter. Clypeus height about 2.1 times AME diameter.
Leg I femur 1.35, patella 0.35, tibia 1.15, metatarsus 0.95, tarsus 0.45. Femur I about 7 times longer than wide. Leg formula 1423. Leg pale yellowish, femur I distinctly darkened, except at base. 4–6 small trichobothria dorsally on all tibia, 4–5 on tibia I–III, 5–6 on
IV. 3
dorsal trichobothria on palpal tibia.
Under light microscopy we could not detect the presence of colular setae, however, in these small spiders they could easily be overlooked.
Epigynum as in
Figures 18C–D
.
Male
: unknown.
Natural history
The
type
material was collected by beating in a mid elevation forest.
Phylogenetics
See under
A. agnar
n. sp.
and
Figure 1
.