Calyptomastix vuasu Enghoff 2022, sp. nov.

Calyptomastix vuasu sp. nov.

urn:lsid:zoobank.org:act: FD6512DA-4C6A-47F5-A8AC-A2EBF0B1C678

Figs 17–18

Differs from other species of Calyptomastix by the combination of having a post-torsal spine (= postfemoral spine of Hoffman & Howell 2012) having the lateral coxal process in a subapical position and having a posteriad triangular process at the same level.

The historical name used for the South Pare Mountains by its inhabitants. Noun in apposition.

Material examined (total 1 ♂)

Holotype TANZANIA • ♂ (head and rings 1–6 missing); Kilimanjaro Region, Same District, South Pare Mountains, Chome FR; 8 May 2011; S. Frederiksen leg.; NHMD 621717.

Description (male)

SIZE. Diameter 3.4 mm, 74 podous rings, no apodous rings in front of telson.

COLOUR. Overall greyish brown, posterior part of metazonites amber, a clear yellow dorsal stripe. Telson dark brown, legs yellow.

ANAL VALVES. Only a tiny indication of a dorsal spine, no ventral spine or ‘corner’; margins not raised, each with 3 sessile setae.

LIMBUS (Fig. 17D). With pointed-triangular, striate lobes, ca twice as long as broad.

LEGS. Postfemoral and tibial pads well-developed on anterior post-gonopodal legs, diminishing and disappearing towars posterior.

STERNUM 9. (Fig. 18H). Subquadratic, with a transverse depression slightly below middle.

GONOPOD COXA (Fig. 17A–C). Proplica (PP) slender, almost parallel-sided, simple, with a relatively large proplical lobe (PPL) distally and a lateral short, triangular process (LCS) ca at same level. Metaplica (MP) simple, with a poorly demarcated basal metaplical flange (MF), subdistally with a posteriad, rounded triangular process (mtp). Cucullus (CU) triangular, no fingerlike process facing proplical lobe.

GONOPOD TELOPODITE (Fig. 18A–G). Arculus 90°. Torsotope (TT) extended, post-torsal narrowing obscured by long, stout post-torsal spine (PTS) making more than a full turn around post-torsal area. Solenomere (SLM) shorter than, and nested in cavity of telomere, taeniate, pointed, with stout basal solenomeral spine (BSS) and a subdistal flange (fl) on posterior side. Telomere (TM) relatively simple, curved podshaped, forming a regular 180° curve; external surface smooth, internally with several irregular membranes.

Known only from the type locality in the South Pare Mts.