Distribution, habitats, phenology and conservation of New Caledonian Odonata
Author
Grand, Daniel
Author
Marinov, Milen
Author
Jourdan, Herve
Author
Cook, Carl
Author
Rouys, Sophie
Author
Mille, Christian
Author
Theuerkauf, Jörn
text
Zootaxa
2019
2019-07-19
4640
1
1
112
journal article
26165
10.11646/zootaxa.4640.1
1c74afbc-0c31-4b2b-b975-af79979613ab
1175-5326
3342242
434B2D49-EC2C-4246-8703-42C6CFD31B87
Isosticta spinipes
Selys-Longchamps, 1885
(
Fig. 31
)
Isosticta spinipes
Selys-Longchamps, 1885: 7
.
Distribution
(
Fig. 32
). Endemic to
New Caledonia
. According to
Davies (2002)
, this species is widely distributed on Grande Terre with more than 15 sites recorded. There are spread in three sectors: on mountains in the east of Nouméa, at Col d’Amieu and in the north at the foot of the Mont Panié range. Strangely, the type locality of the male
holotype
is Lifou Island. One specimen collected at Col d’Amieu in
November 1998
is held in the
CXMNC
collection.
FIGURE 29.
Isosticta robustior
: a) male, b) female.
FIGURE 30.
Records of
Isosticta robustior
.
FIGURE 31
.
Isosticta spinipes
, male (M. Marinov).
FIGURE 32.
Records of
Isosticta spinipes
.
Habitat.
Small creeks in hill forest, but can also be present at lower altitudes. This species seems to tolerate ultramafic soils in the south of Grande Terre.
Biology and behaviour.
Its larva was described by
Lieftinck (1976)
. Adults are always found on stream banks, usually as single individuals. The biology of this species needs further study.
Status.
This species is less abundant, often and easily overlooked within larger populations of other
Isosticta
species. The species is probably more common than observed in the three sectors of its main occurrence. As a precaution, we rank
I. spinipes
as VU.