Mountains of millipedes. The family Odontopygidae in the Eastern Arc Mountains of Tanzania (Diplopoda, Spirostreptida)
Author
Enghoff, Henrik
FB09A817-000D-43C3-BCC4-2BC1E5373635
Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK- 2100 Copenhagen Ø, Denmark.
henghoff@snm.ku.dk
text
European Journal of Taxonomy
2022
2022-03-14
803
1
136
http://dx.doi.org/10.5852/ejt.2022.803.1691
journal article
20167
10.5852/ejt.2022.803.1691
af09c8e1-b481-4de0-b9d0-83ba26bf9876
2118-9773
6359066
8B66C8AE-F00A-42F6-9641-26B0ECC49F78
Lamelloramus frederiksenae
sp. nov.
urn:lsid:zoobank.org:act:
A324AFEE-BAD1-4DB6-B10F-4E45999F5FC0
Figs 6
,
40–42
Diagnosis
Differs from other species of
Lamelloramus
, including the undescribed one from Mt.
Kilimanjaro
mentioned above, by the presence of a very long basal solenomeral spine (
BSS
) (vs absent or very short in other species) as well as in the outline of the “side-branching telomeric lamella” and the detailed shape of the gonopod coxa.
Etymology
After Sara B. Frederiksen who described the genus
Lamelloramus
(
Frederiksen 2013b
)
.
Material examined
(total
1 ♂
)
Holotype
TANZANIA
•
♂
;
Morogoro Region
,
Uluguru South FR
,
forest above Linzi village
;
07°06′ S
,
37°40′ E
;
Nov. 1993
;
The Uluguru Biodiversity Survey
leg.;
NHMD 621744
.
Description
(male)
SIZE. Length
49 mm
, diameter
3.3 mm
, 55 podous rings, no apodous rings in front of telson.
COLOUR. After 25 years in alcohol all faded.
SUPRALABRAL SETAE. 6.
MANDIBULAR STIPES. Distal margin distinctly concave-bilobed.
ANAL VALVES. With well-developed dorsal spine, no ventral spine, margins not raised, each with three sessile setae.
LIMBUS (
Fig. 41E
). With simple, triangular lobes (strongly worn on unique specimen).
LEGS. Ventral pads on postfemur and tibia from leg-pair 4, diminishing and eventually disapperaring towards posterior.
FIRST PAIR OF LEGS (
Fig. 40A–C
). Prefemoral lobes broad, triangular in ventral view. One to three coxosternal setae (
CXS
) close to lateral margin of coxosternum, well separated from prefemoral lobes. Prefemora with two short mesapical setae (
APS
), lateral setae absent or indistinct.
STERNUM 9 (
Fig. 40D
). Large, in the shape of an inverted triangle on a stout foot, with an irregular keel from bottom to top.
GONOPOD COXA (
Fig. 41A–D
). Quite stout, margins shallowly sinuous. Proplica (
PP
) with shallowly sinuous mesal margin, proplical lobe hidden under anterior metaplical lobe (
ml
). Metaplical flange (
MF
) without a process. Metaplica (
MP
) forming apical ‘crown’ with a system of ridges delimiting two broad troughs (
tr1
,
tr2
), one shallow, one deep; on anterior side forming broad basad lobe (
ml
) covering proplical lobe; on lateral side with semicircular lobe (
mll
).
GONOPOD TELOPODITE (
Fig. 42
). Arculus 90°. Torsotope (
TT
) compact, with a long post-torsal spine (
PTS
). Post-torsal narrowing (
PM
) not very pronounced, relatively short. Solenomere (
SLM
) very long, longer than telomere, whiplike, with an exceptionally long, first straight, then strongly curved basal spine (
BSS
) otherwise without any outgrowths; solenomere making a large U-bend on dorsal side of telomere, apically fluted and spiralled (
Fig. 42F–G
). Telomere (
TM
) relatively simple, mesally dividing into a broadly rounded-triangular mesad(-posteriad) lamella (
stl
= “side-branching telomeric lamella”
sensu
Frederiksen 2013b
), and a long bandlike, tapering process (
tp
) which turns laterad and then makes an almost complete loop in a plane perpendicular to main axis of telopodite.
Fig. 40.
Lamelloramus frederiksenae
sp. nov.
, holotype, ♂ (NHMD 621744).
A–C
. First pair of legs. A. Sublateral view. B. Anterior view. C. Ventral view.
D
. Sternum 9. Abbreviations:
APS
=mesapical prefemoral setae;
CXS
= coxosternal setae. Scale bars =0.1 mm.
Distribution and habitat
Known only from the Uluguru South FR.