A review of the millipedes (Diplopoda) of Namibia, with identification keys and descriptions of two new genera and five new species
Author
Vohland, Katrin
Author
Hamer, Michelle
text
African Invertebrates
2013
2013-06-30
54
1
251
251
journal article
2305-2562
Genus
Doratogonus
Attems, 1914
Alloporus
Porat, 1872: 43
; 1876: 45;
Saussure & Zehnter 1902: 175
; Attems 1928: 346; 1950: 204; Schubart 1966: 90;
Krabbe 1982: 113
. Synonymised by Hoffman (1987).
Doratogonus
: Attems 1914
a
: 109
; 1928: 339; 1934
b
: 483; Schubart 1966: 90;
Demange 1970: 401
; Hoffman 1987: 13; Hamer 1998: 47; 1999: 10; 2000: 2;
Hamer & Slotow 2000: 295
.
Type
species:
Spirostreptus setosus
Voges, 1878
.
Diagnosis: Mandible with 10–12 pectinate lamellae. Collum projects anteriorly (
Fig. 49
). Lateral lamella of telocoxite with a small spine-like projection on lateral edge, median lamella typically setose and extended distally as a slender, spinous projection (
Fig. 47
). Telopodite with long, slender shaft, curved proximally, with long, strongly curved femoral process, and with torsion of main branch of telopodite at position of origin of femoral process, distal to which main branch is looped (
Figs 47, 48
). Solenomere distally forked or apically bifid (
Fig. 47
).
Remarks: Attems (1914) erected
Doratogonus
as a new genus, but its differentiation from
Alloporus
Porat, 1876
, remained unclear. The two genera were separated only by the position of the first ozopore.
Krabbe (1982)
combined the generic concepts under
Alloporus
, but Hoffman (1987) revived the name
Doratogonus
for medium- to largesized spirostreptids which differ from
Alloporus
in having more pectinate lamellae on their mandibles and more numerous small setae on the distal half of the stipes. The genus
Alloporus
was placed on the list of genera
incertae sedis
. Hoffman (1987) considered
Doratogonus
to be heterogeneous and provided a diagnosis, which he believed was too inclusive (
Hamer 2000
).