Aquattuor udzungwensis 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 : 13-15

Aquattuor udzungwensis Enghoff sp. nov.

urn:lsid:zoobank.org:act:60F38BFF-E5EA-4BB0-A691-263DB097502B

Figs 3 , 8

Diagnosis

Diameter 1.44–1.69 mm, 44–50 podous rings. Gonopods: lateral incision of coxa (li) deep with rounded bottom, curving distad; apical palette (pa) rounded-triangular, not longer than broad; telomere describing a c. 270° curve in almost one plane; mesal-posterior lamella of telomere (mpl) high, basally set off by 45–90° angle; anterior margin of telomere without a triangular tooth; telomere tip with smooth to microspiculate margins, internal surface microspiculate.

Etymology

The name is a Latin adjective derived from the Udzungwa Mts, home of this (and several other) Aquattuor species.

Material studied (total: 21 ♂♂)

Holotype

TANZANIA: ♂, Udzungwa Mts, Iringa Region, Udzungwa Scarp FR, above Chita village, 750 m asl, 23 Oct. –14 Nov. 1984, lowland rain forest, N. Scharff leg. ( ZMUC).

Paratypes

TANZANIA: 4 ♂♂, same data as holotype, but 25–29 Oct. 1984, pitfall traps (ZMUC).

Referred non-type material

TANZANIA: Iringa Region, Iringa District, Udzungwa Mts, West Kilombero Scarp FR, montane forest, Frontier Tanzania coll.: 1 ♂, 07°53’19.5” S, 36°23’11.6” E, 1100–1300 m asl, Plot Ukami, 30 Nov. 2000 (ZMUC); 6 ♂♂, 07°53’19.5” S, 36°23’11.6” E, 1111 m asl, 23 Nov. 2000 (ZMUC); 7 ♂♂, 07°53’19.5” S, 36°23’11.6” E, 1126 m asl, plot 17 – Ukami, 25 Nov. 2000 (ZMUC); 1 ♂, 07°50’38.4” S, 36°22’17.6” E, 1390 m asl, 13 Nov. 2000 (ZMUC); 1 ♂, 07°50’38.4” S, 36°22’17.6” E, 1390–1410 m asl, Plot Paradiso, 18 Nov. 2000 (ZMUC).

Type locality

TANZANIA: Udzungwa Mts, Iringa Region, Udzungwa Scarp FR, above Chita village, 750 m asl, lowland rain forest.

Colouration

After 15–31 years in alcohol faded, pale yellowish, head and especially collum contrastingly darker. Traces of paramedian, dark bands flanking a middorsal, pale stripe.

Distribution and habitat

Known from Udzungwa Scarp FR and from West Kilombero Scarp FR. Altitudinal range: 750–1410 m. Habitat: lowland rain forest and montane rain forest.

Coexisting species

In Udzungwa Scarp FR, Aquattuor stereosathe Enghoff sp. nov., Chaleponcus circumvallatus Enghoff, 2014 , C. hamerae Enghoff, 2014 , and C. nikolajscharffi Enghoff, 2014 have been found. In West Kilombero Scarp FR, Aquattuor longipala Enghoff sp. nov., Chaleponcus netus Enghoff, 2014 , and C. circumvallatus Enghoff, 2014 were found in the same sample as A. udzungwensis Enghoff sp. nov. In addition, C. basiliscus Enghoff, 2014 , C. gracilior Enghoff, 2014 , C. ibis Enghoff, 2014 , and C. tintin Enghoff, 2014 were found in West Kilombero Scarp FR.

Figures

Fig. 3. Aquattuor spp. A. A. stereosathe Enghoff sp. nov., paratype, front end. B–C. A. udzungwensis Enghoff sp. nov., paratype, telson, lateral and posterior view. D–E. A. udzungwensis Enghoff sp. nov., limbus. D. Specimen from West Kilombero Scarp FR. E. Paratype. Scale bars: A–D = 0.1 mm; E = 0.01 mm.

Fig. 8. Aquattuor udzungwensis Enghoff sp. nov. A–B, D. Paratype. C. Specimen from West Kilombero Scarp FR. A. Gonopods in situ. B. Telopodite, ventral view. C. Right gonopod, anterior view. D. Telomere tip. li = lateral incision; pa = palette; mpl = mesal-posterior lamella of telomere. Scale bars: A–C = 0.1 mm; D = 0.05 mm.