Aquattuor submajor Enghoff, 2015

Enghoff, Henrik & Frederiksen, Sara B., 2015, A mountain of millipedes II: The genus Aquattuor Frederiksen, 2013 - five new species from the Udzungwa Mountains and one from Mt. Kilimanjaro, Tanzania (Diplopoda, Spirostreptida, Odontopygidae), European Journal of Taxonomy 150, pp. 1-25 : 7-10

Aquattuor submajor Enghoff sp. nov.

urn:lsid:zoobank.org:act:690C121A-D087-400D-95BC-42BCA7B224BE

Figs 4–5

Diagnosis

Diameter 1.55–1.87 mm, 45–48 podous rings. Gonopods: lateral incision of coxa (li) absent to poorly developed; apical palette (pa) rounded, not longer than broad; telomere describing a c. 270° curve in almost one plane; mesal-posterior lamella of telomere (mpl) low; anterior margin of telomere without a triangular tooth; telomere tip with finely dentate margins, internal surface microspiculate.

Etymology

The name is an artificial Latin adjective meaning “below major ” and refers to 1) the smaller size of this species compared to A. major Enghoff sp. nov. and 2) the fact that this species occurs at lower altitudes than A. major Enghoff sp. nov.

Material studied (total: 17 ♂♂)

Holotype

TANZANIA: ♂, Morogoro Region, Udzungwa Mts, Mwanihana FR, above Sanje, 1000 m asl, 18 Aug. 1982, in log, M. Stoltze & N. Scharff leg. ( ZMUC).

Paratypes

TANZANIA: 7 ♂♂, same data as holotype, but in litter, log and pitfall trap, M. Stoltze & N. Scharff leg. (ZMUC); 1 ♂, same data but 1100 m asl, pitfall trap (ZMUC); 8 ♂♂, same data but 1250 m asl, 1 Aug. 1982, under log, M. Stoltze & N. Scharff leg. (ZMUC).

Type locality

TANZANIA: Morogoro Region, Udzungwa Mts, Mwanihana FR, above Sanje, 1000 m asl.

Colouration

After 33 years in alcohol faded, only some darker markings on head and collum left. No traces of a middorsal stripe.

Distribution and habitat

Known only from Mwanihana FR. Altitudinal range: 1000–1250 m asl.

Coexisting species

Aquattuor major Enghoff sp. nov. and Chaleponcus mwanihanensis Enghoff, 2014 occur in the same area, but only at higher altitudes.

Figures

Fig. 4. Aquattuor submajor Enghoff sp. nov., paratype. A. Gonopods in situ, right gonopod coloured. B. Left gonopod coxa and basal part of telopodite. C. Left gonopod telopodite and part of coxa, dorsal (basal) view.Articifical colours: orange = coxa; blue = basomere; yellow = solenomere; pink = telomere; red = gonopod sternum; light green = ventral part of eighth pleurotergite (right side); dark green = sternum of reduced ninth leg-pair. mp = metaplica; pa = palette; pp = proplica. Scale bars = 0.1 mm.

Fig. 5. Aquattuor submajor Enghoff sp. nov., paratype, left gonopod. A. Anterior view. B. Close-up of mesal incision. C. Tip of telomere. D. Posterior view. btl = basal telomeral lamella; li = lateral incision; mi = mesal incision; mpl = mesal-posterior lamella of telomere; pa = palette; pn = posttorsal narrowing. Scale bars: A, D = 0.1 mm; B–C = 0.01 mm.