The myrmicine ant genus Metapone Forel (Hymenoptera: Formicidae): a global taxonomic review with descriptions of twelve new species
Author
Taylor, Robert W.
Author
Alpert, Gary D.
text
Zootaxa
2016
4105
6
501
545
journal article
39188
10.11646/zootaxa.4105.6.1
9f3191f8-cd86-4a17-ad5b-0c454e0acb8d
1175-5326
271319
DCB6A5BB-46C9-4D05-8B4A-C6E4CBABB6F
27.
Metapone mathinnae
sp.n.
(
Figs 156–159
)
Type
locality.
AUSTRALIA
; TASMANIA: Flinders
Island
: Vinegar Hill [
40°12'S
,
148°15'E
].
FIGURES 156–159.
M. mathinnae
, holotype worker, see text for dimensions.
Distribution, material examined.
Known only from the
holotype
worker, collected
29 ii 1952
by the late John H. Calaby of CSIRO Division of Wildlife Research, who regularly collected termite samples for the ANIC. The dissected mouthparts including the mandibles are stored in glycerine in a micro vial pinned below the pointmounted specimen.
Type
deposition.
ANIC
(
Type
No. 32-069960).
Worker diagnosis.
General and diagnostic features as illustrated. Readily identified in the key to Australian species above. Smaller than other known Australian
Metapone
workers (
M. mjobergi
,
M. hoelldobleri
and
M. tillyardi
), and probably those of the gyne-based species (assuming likely relative gyne/worker sizes). Lateral clypeal borders straight, anteriorly convergent. Anterior clypeal border slightly concave, anteroventral corners angular to subdentate in frontal view. Eyes minute, maximum diameter ca
0.04 mm
, with minimal surface structure visible in reflected light and several very indistinct minute facets. Subpetiolar process much as in the three species just cited, especially the first two (see Figs). Subpostpetiolar process distinctive among Australian species and unusual in
Metapone
at large—a thin semicircular transverse plate, more slender and parallel-sided in profile than those of any other known Australian species.
Dimensions
: TL: ca 5.4 (mandibular component estimated); HL: 1.08; HW: 0.84; CI: 78; CpL: 0.39; CpI: 36; MSL: 1.36; PML: 0.82; PMW: 0.59; PMI: 60; PDW: 0.49; PetL: 0.34; PetW: 0.44; PetH: 0.61; PpetL: 0.32; PpetW: 0.47; PpetH: 0.53; GW: 0.90. Palpal formula: Maxillary 1: Labial 2 (dissected).
Possible termite associations:
Available termite distribution records (
Watson & Abbey, 1993
) imply that
M. mathinnae
is likely associated with either (or both?) of the termite species known from Flinders
Island
, namely
Porotermes adamsoni
(Froggatt) (Termopsidae)
and
Kalotermes convexus
(Walker) (Kalotermitidae)
, both of which occur also in south-eastern
Australia
and mainland Tasmania (
ibid
, maps 2, 34). The only two other recorded Tasmanian termites (and possible hosts) are
Stolotermes brunneicornis
(Hagen) (Termopsidae)
and
Bifiditermes improbus
(Hagen) (Kalotermitidae)
. The former is known only from mainland Tasmania and the latter is widespread elsewhere on the Australian mainland (
ibid
. maps.4, 7).
Etymology.
Named for the martyred native Tasmanian
Mathinna
(
1835–1852
), the adopted, Europeanised daughter of
1837–1843
“Van Diemen’s Land” Lieutenant Governor John Franklin (of previous and later Arctic exploration fame) and his wife Lady Jane (Griffin) Franklin. Mathinna was abandoned when the Franklins returned to
England
from Tasmania in 1843, and died tragically, socially rejected, soon afterwards (see
Flanagan, 2008
).