The millipede genus Gasterogramma (Diplopoda: Polydesmida: Dalodesmidae) in Tasmania, Australia, with descriptions of seven new species
Author
Mesibov, Robert
text
Memoirs of Museum Victoria
2003
2003-12-31
60
2
207
219
https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-60-issue-2-2003/pages-207-219/
journal article
10.24199/j.mmv.2003.60.21
1447-2554
12207697
Gasterogramma wynyardense
sp. nov.
Figures 10
,
12
(map)
Material examined.
Holotype
. Male.
Australia
,
Tasmania
.
Inglis R.
, CQ850382 [41º11´57´´ 145º37´42´´],
390 m
,
27 May 1999
,
K. Bonham
, site 35b, wet eucalypt forest,
QVM 23
:41910.
Paratypes
.
2 males
, details as for
holotype
,
QVM 23
:41910;
1 male
,
Meryanna, CQ
388491 [41º05´35´´ 145º04´50´´],
190 m
,
10 Apr 1999
, R.
Mesibov
, rainforest,
QVM 23
:41044
Other material.
9 males
from 8 unique localities in north-west
Tasmania
:
Arthur R.
,
Blackfish Creek
,
Cam R.
,
Inglis R.
,
Julius R.
, Oonah,
Seabrook Creek
and Sumac Rivulet
.
Diagnosis.
Gonopod with no femoral process or tibiotarsus; telopodite in posterior view ending in a narrow, distally directed point
Description.
Males c.
15–17 mm
long and c.
1.6–1.8 mm
wide at midbody. Body in both sexes lightly mottled with brownishpink pigmentation. Gonopod telopodites slender (fig. 10), arising from syncoxite well-separated, but lightly joined from about one-third their length, a few short, coarse setae at telopodite bases within aperture. Aperture more or less ovoid, long axis transverse, posterior margin slightly raised and narrowly, medially notched. Each telopodite bends anteriorly at about half its length, bears a narrow, smoothly curved ridge on its anterior surface at about three-quarters of its length, and tapers mesally to blunt point. Solenomerite short, helical process arising from flattened area on posterior side of telopodite just distal to its bend, solenomerite cradled at its base in a shallow depression in telopodite. Prostatic groove running distally on mesal side of telopodite to vicinity of bend, then curving to posterior side of telopodite, entering base of solenomerite on a slightly sinuous, distal course. No indication of a femoral process or a tibiotarsus.
Distribution
. Rainforest and closed wet eucalypt forest (and exotic tree plantations) over at least
900 km
2
in
north-west
Tasmania
(fig. 12), from near sea level to c.
500 m
.
Syntopic with
G. psi
at various locations through its range.
Etymology.
Adjectival form of Wynyard, a Tasmanian town close to which this species is abundant.