The millipede genus Lissodesmus Chamberlin, 1920 (Diplopoda: Polydesmida: Dalodesmidae) from Tasmania and Victoria, with descriptions of a new genus and 24 new species
Author
Mesibov, Robert
text
Memoirs of Museum Victoria
2005
2005-12-31
62
2
103
146
https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-62-issue-2-2005/pages-103-146/
journal article
53801
10.24199/j.mmv.2005.62.4
7c43d20c-c0a8-47ad-896a-fc9a1619e294
1447-2554
8064747
Lissodesmus milledgei
sp. nov.
Figures 51, 69mil, 70mil, 71mil, 78 (map)
Material examined.
Holotype
. Male,
Australia
,
Victoria
.
Myrtle Gully Reserve
,
3.4 km WSW of Mt Donna Buang
,
37°43'S
145°38'30''E
,
pitfall
emptied
20.i.1995
,
G. Milledge
, ex sample NOH-1840,
NMV
K-9604
.
Paratypes
. Male, details as for holotype but
7.iv.1995
, ex sample NOH-1841,
NMV
K-9605
;
male,
Acheron Gap
,
6 km
NE of Mt Donna Buang
,
37°40'43''S
145°44'20''E
,
pitfall
emptied
28.xii.1995
,
G. Milledge
, sample NOH-1851,
NMV
K-9606
, dissected
.
Other material.
Male,
The Beeches
,
37°28'S
,
145°49'E
,
25.iii.1991
,
M.S. Harvey
&
M.E. Blosfeld
,
Nothofagus
litter,
WAM
T66223
.
Description
. Male c.
14 mm
long,
H
= 1.3 mm. In alcohol, under low magnification with uniformly very pale brown body colour. Antenna short (
Fig. 69
mil).
Paranota
reduced,
R
= 1.4, anterior shoulders squared rather than rounded (
Fig. 70
mil), posterior corners slightly turned up. Legs moderately robust, tarsus shorter than femur, tibia with slight ventral distal swelling, sphaerotrichomes on tibia and tarsus only of leg 6 (
Fig. 71
mil). Telopodite (
Fig. 51
) reaching leg 5 when retracted. Solenomere arising at half the telopodite height, directed posterobasally at large angle to telopodite axis but bending at about one-third the process length distally and slightly mesally, terminating with small subapical projection at between one-third and half the prefemoral process height. Tibiotarsus origin on posteromesal surface of telopodite, not close to solenomere origin; tibiotarsus a posterobasally flattened triangular plate with a bluntly pointed tip, directed at c. 45° to telopodite axis, about one-third the solenomere length. Femoral process arising at level of solenomere origin, directed distally and pressed close to prefemoral process, blade-like with a slight anterior shoulder distally, tip rounded, terminating at one-third to half the prefemoral process height (at level of solenomere tip).
Prefemoral process somewhat narrower than telopodite base, tapering, the distal one-third curving posterobasally and slightly mesally and bearing a comb of c. 15–20 long, mainly basally directed teeth; a cluster of three small tooth-like projections on mesal edge of prefemoral process at about two-thirds the process height.
Uncus prominent, arising at level of solenomere and femoral process tips towards lateral edge of prefemoral process.
Distribution and habitat.
Known from three localities in cool temperate rainforest in the Yarra Ranges east of Melbourne (
Fig. 78
).
Etymology
. Named for Graham Milledge, who collected this and many other interesting invertebrate species in the mid-1990s from
Nothofagus
forest in
Victoria
.