Mountains of millipedes. The family Odontopygidae in the Eastern Arc Mountains of Tanzania (Diplopoda, Spirostreptida) Author Enghoff, Henrik FB09A817-000D-43C3-BCC4-2BC1E5373635 Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK- 2100 Copenhagen Ø, Denmark. henghoff@snm.ku.dk text European Journal of Taxonomy 2022 2022-03-14 803 1 136 http://dx.doi.org/10.5852/ejt.2022.803.1691 journal article 20167 10.5852/ejt.2022.803.1691 af09c8e1-b481-4de0-b9d0-83ba26bf9876 2118-9773 6359066 8B66C8AE-F00A-42F6-9641-26B0ECC49F78 Calyptomastix vuasu sp. nov. urn:lsid:zoobank.org:act: FD6512DA-4C6A-47F5-A8AC-A2EBF0B1C678 Figs 17–18 Diagnosis 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. Etymology The historical name used for the South Pare Mountains by its inhabitants. Noun in apposition. Fig. 17. Calyptomastix vuasu sp. nov. , holotype, ♂ (NHMD 621717). A–C . Left gonopod coxa. A. Anterior view. B. Mesal view. C. Posterior view. D . Midbody dorsal limbus. Abbreviations: CU =cucullus; LCS = lateral coxal process; MP= metaplica; mtp = metaplical triangular process; PP = proplica; PPL =proplical lobe. Scale bars: A–C =0.2 mm; D =0.01 mm. 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 . Fig. 18. Calyptomastix vuasu sp. nov. , holotype, ♂ (NHMD 621717). A–F . Left gonopod telopodite. A. Anterior view. B. Ventral view. C. Posterior view. D. Dorsal view. F. Mesal view. G . Right gonopod solenomere. H . Sternum 9. Abbreviations: BSS =basal solenomeral spine; fl =flange; PTS = post-torsal spine; SLM =solenomere; TM =telomere; TT =torsotope. Light blue areas obscured covered by mounting tape. Scale bars: A–F, H = 0.1 mm; G not to scale. 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. Distribution Known only from the type locality in the South Pare Mts.