Chaleponcus howelli Enghoff 2014, sp. nov.
Creators: name: Enghoff, Henrik
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Spirostreptida
Odontopygidae
Chaleponcus
Chaleponcus howelli

description: Chaleponcus howelli sp. nov.
urn:lsid:zoobank.org:act: F7D97CB8-4791-4584-AD89-F2BCC6589590
Figs 4, 9, 30
Diagnosis
Medium-sized. Gonopod coxa (Fig. 9) without a lateral process; cucullus small. Distinguished from other species, i.a., by the presence of a spine (sts) on the main stem of the telomere in combination with the large distal spine (als) on the anterior telomeral lamella.
Etymology
The name honours Kim Howell in recognition of his huge efforts to increase the knowledge of Tanzanian millipedes.
Material studied (total: 100 ♂♂)
Holotype
TANZANIA: ♂, Iringa Region, Udzungwa Mts, Mufindi, Kigogo Forest Reserve, 1900 m, 7–15 Oct. 1984, pitfall traps in montane rain forest, N. Scharff leg. (ZMUC).
Paratypes
TANZANIA: 61 ♂♂, Iringa Region, Udzungwa Mts, Mufindi, Kigogo Forest Reserve, 1700 m, 8–10 Oct. 1984, pitfall traps in montane rain forest, N. Scharff leg. (ZMUC); 38 ♂♂, same data as holotype (ZMUC).
Type locality
TANZANIA: Iringa Region, Udzungwa Mts, Mufindi, Kigogo Forest Reserve, 1900 m, montane rain forest.
Description (male)
DIAMETER. 2.0– 2.2 mm, 44–47 podous rings.
COLOUR. After 30 years in alcohol almost uniform pale brown, with faint traces of a light dorsal stripe, sometimes with a thin dark line in midline.
ANAL VALVES. Each with a long, dorsal spine and a well-developed, but small, triangular ventral one; marginal rim raised, setiferous tubercles well developed, on ‘ravelins’.
LIMBUS (Fig. 4B). With long, slender triangular lobes, separated by rounded sinuses; lobes striate on external surface.
TARSAL SETATION. Normal.
GONOPOD COXA (Figs 9, 30). About 3½ × as long as wide. Lateral margin almost straight, towards apex gently curving mesad and continuous with apical margin; cucullus (cu) an almost perfect hollow hemisphere. Metaplical flange (mf) ending in blunt, equilateral triangular process; metaplical mesal margin with large rounded process (mp) delimiting semicircular sinus together with base of metaplical shelf. Metaplical shelf (ms) simple, regularly rounded, mostly projecting laterad. Metaplical shelf-spine (mss) of medium length, originating from anterior-mesal part of ms, projecting disto-mesad, then basad, reaching beyond telopodital basomere.
GONOPOD TELOPODITE (Fig. 30). Solenomere with a very long, straight, meso-basad, proximal spine (ps). Main stem of telomere with a small spine (sts) ca. in middle of basal surface. Telomere distally with two branches:
• a rounded anterior lamella (al) ending in a long, gently sinuous mesad spine (als),
• a large, irregular posterior lamella (pl).
Distribution and habitat
Known only from Udzungwa Mts, Kigogo FR. Altitudinal range: 1700–1900 m. Habitat: montane rain forest.
Coexisting species
All four species known from Kigogo FR, i.e., C. quasimodo sp. nov., C. scopus sp. nov., C. howelli sp. nov. and C. mwabvui sp. nov., were found in the same samples.
description: Published as part of Enghoff, Henrik, 2014, A mountain of millipedes I: An endemic species-group of the genus Chaleponcus Attems, 1914, from the Udzungwa Mountains, Tanzania (Diplopoda, Spirostreptida, Odontopygidae), pp. 1-75 in European Journal of Taxonomy 100 (100) on pages 63-65, DOI: 10.5852/ejt.2014.100, http://zenodo.org/record/3860450