Aquattuor mollilobus Enghoff 2020, sp. nov.
Creators: name: Enghoff, Henrik
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Spirostreptida
Odontopygidae
Aquattuor
Aquattuor mollilobus

description: Aquattuor mollilobus sp. nov.
urn:lsid:zoobank.org:act: A453CBE6-5FF7-4327-9B45-FA0C6A9AE84F
Figs 1, 6 A–C, 8C, 9, 12–13
Diagnosis
Diameter 1.80–1.96 mm, 48–53 podous rings (Fig. 9). Differs from congeners, except A. longipala and A. major, by having the gonopodal palette considerably longer than broad, and by having a distal prefemoral lobe on the first pair of male legs, in addition to the normal prefemoral process. Differs from A. longipala and A. major by having the lateral and mesal incisions of the gonopod coxa indistinct, and by having the tarsal setae of the first pair of male legs much shorter than tarsal setae of normal walking legs.
Etymology
The name is an adjective meaning soft (Latin: mollis) lobe and refers to the distal modification of the first male prefemora.
Material studied (total: 21 ♂♂, 11 ♀♀, 1 juv.)
Holotype TANZANIA • ♂; Morogoro Region, Udzungwa Mts National Park, Kidatu, Plot 6; 07°40′42.1″ S, 36°55′06.8″ E; 1482 m a.s.l.; 21 Oct. 2014; J. Malumbres-Olarte leg.; pitfall trapping; NHMD 621645. Paratypes TANZANIA • 8 ♂♂; Morogoro Region, Udzungwa Mts National Park, Kidatu, Plot 5; 07°40′45.5″ S, 36°55′06.9″ E; 1448 m a.s.l.; 21 Oct. 2014; J. Malumbres-Olarte leg.; pitfall trapping (summed catch from three traps); NHMD 621646 • 7 ♂♂; Morogoro Region, Udzungwa Mts National Park, Kidatu, Plot 6; 07°40′42.1″ S, 36°55′06.8″ E; 1482 m a.s.l.; 21 Oct. 2014; J. Malumbres-Olarte leg.; pitfall trapping (summed catch from six traps); NHMD 621647 • 5 ♂♂; Morogoro Region, Udzungwa Mts National Park, Kidatu, Plot 9; 07°41′06.2″ S, 36°55′06.8″ E, 1527 m a.s.l.; 23 Oct. 2014; J. Malumbres-Olarte leg.; pitfall trapping (summed catch from three traps); NHMD 621648.
Referred non-type material
TANZANIA • 11 ♀♀, 1 juv.; same collection data as for paratypes (plots 5, 6, 9); NHMD.
Description (male)
MEASUREMENTS. Body length 28–31 mm; vertical diameter 1.82–1.91 mm; 48–53 podous rings, no apodous rings in front of telson.
COLOUR. Similar to that of A. claudiahempae (Enghoff & Frederiksen 2015: fig. 1). A light mid-dorsal stripe present.
LIMBUS (Fig. 12E). With rectangular, detachable flaps, as typical of the genus.
FIRST PAIR OF MALE LEGS (Figs 6 A–C, 8C). Prefemoral processes (pfp) of first pair of legs slender, fingershaped, slightly curved laterad; in addition an irregular, rugose lobe (dpl) on oral-distal margin of prefemur; setae of all podomeres much shorter than femoral setae of normal walking legs.
GONOPOD COXA (Fig. 12 A–D). In anterior or posterior view ca 3½ × as long as broad. Margins of proplica (pp) parallel in basal ca ¾. Mesal (mi) and lateral (li) incisions shallow and poorly developed; apical palette (pa) narrower than basal part of proplica, lateral margin regularly rounded, mesal margin straight.
GONOPOD TELOPODITE (Fig. 13). Solenomere (slm) thin, whiplike. Main part of telomere (tm) a rather broad gutter describing a 270° curve in almost one plane; tip of telomere broad rounded, densely beset with minute spicules on external surface.
In all other characters conforming to the general description of Aquattuor in Enghoff & Frederiksen (2015).
Distribution
Known only from a single site in Udzungwa Mts National Park (Fig. 1). Altitudinal range: 1448–1527 m a.s.l.
description: Published as part of Enghoff, Henrik, 2020, A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae), pp. 1-32 in European Journal of Taxonomy 626 on pages 16-19, DOI: 10.5852/ejt.2020.626, http://zenodo.org/record/3754989