Archispirostreptus bottegi Silvestri 1895

Mwabvu, Tarombera, Hamer, Michelle, Slotow, Rob & Barraclough, David, 2010, A revision of the taxonomy and distribution of Archispirostreptus Silvestri 1895 (Diplopoda, Spirostreptida, Spirostreptidae), and description of a new spirostreptid genus with three new species, Zootaxa 2567, pp. 1-49 : 5-10

Archispirostreptus bottegi Silvestri 1895

Fig. 2

Archispirostreptus Bottegi Silvestri 1895 , p. 489, fig. 7. Graphidostreptus bottegi: Attems 1914

Archispirostreptus bottegi: Hoffman 1965 ; Krabbe 1982

Type material: Syntypes: ETHIOPIA: 13, 1Ƥ, Ogaden.Archeisa (Harra-es-saghir), 12.x.1892, V. Bottego ( MSNG uncatalogued)

Diagnosis: Apex of proplica rounded; apical metaplical process wider apically, thumb-like; post-knee telopodite with two coils ( Figs 2a, 2b ).

Description: Size: Body length 120–130 mm; maximum body width 10–12 mm.

Number of body rings: 54–56.

Colour: Black.

Collum: Antero-lateral corners not produced into lobes, square shaped, with 2 complete striae ( Fig. 2d ).

Pre-femoral process of 1st pair of male legs: Triangular; proximally broad, with tapering distal extension ( Fig. 2c ).

Gonopod: ( Figs 2a, 2b ) Sternum triangular; paracoxite conical.

Proplica width same along length; apex of proplica finger-like and overlapping proximal lateral metaplical process.

Opposite metaplicae separate at level of paracoxite apex.

Lateral metaplical process horizontal, tapering distally and at right angle to apical metaplical process.

Apical metaplical processes thumb-shaped and parallel and about 2/3 length of lateral metaplical process.

Telopodite with two post-knee spirals, distal spiral at level of paracoxite.

Origin of antetorsal process at knee; apex of antetorsal process extending past apex of paracoxite, with long spikes.

Distribution: Known only from Ogaden, Ethiopia.

Remarks: The gonopods of A. bottegi and A. beccarii are distinguished by the apical shapes of the proplicae and apical metaplical processes, and the number of spirals of the telopodite. Archispirostreptus bottegi has a telopodite with two spirals and long spikes on the antetorsal process (see remarks under A. beccarii ).

Figures

FIGURE 2 a, b. Archispirostreptus bottegi (MSNG uncatalogued). a, oral view of gonopods; b, aboral view of gonopods.