Eviulisoma cetafi

Enghoff, Henrik, 2018, A mountain of millipedes VII: The genus Eviulisoma Silvestri, 1910, in the Udzungwa Mountains, Tanzania, and related species from other Eastern Arc Mountains. With notes on Eoseviulisoma Brole, European Journal of Taxonomy 445, pp. 1-90: 28-30

publication ID

https://doi.org/10.5852/ejt.2018.445

persistent identifier

http://treatment.plazi.org/id/03A10B47-FFE3-FF9B-FD05-FD30FCFEFC60

treatment provided by

Plazi

scientific name

Eviulisoma cetafi
status

sp. nov.

Eviulisoma cetafi  sp. nov.

urn:lsid:zoobank.org:act: 2754 E233- F 5D6-493B-B410- 1067 FF17 A 521

Figs 7 B, DView Fig. 7, 13View Fig. 13

Diagnosis

Differs from other species of the E. kwabuniense  group by having the solenophore two-lobed, its dorsal lobe developed as a very strong hook, hook much larger than those seen in certain other species ( E. ejti  sp. nov., E.akkariae  sp. nov., E. nessiteras  sp. nov.).

Etymology

The species name honours CETAF, Consortium of European Taxonomic Facilities, www.cetaf.org, in recognition of the immense importance of CETAF for natural history collections in Europe and for collections-based research.

Material studied (total: 12 ♂♂)

Holotype

TANZANIA: ♂, Iringa Region, Udzungwa Scarp FR, above Chita Village , 1300–1400 m a.s.l., 26 Oct.– 14 Nov. 1984, pitfall traps in montane rain forest, N. Scharff leg. ( ZMUCAbout ZMUC). 

Paratypes

TANZANIA: 2 ♂♂, Iringa Region, Udzungwa Scarp FR, above Chita Village , 1450 m a.s.l., 4–9 Nov. 1984, pitfall traps in montane rain forest, N. Scharff leg. ( ZMUCAbout ZMUC)  ; 4 ♂♂, Iringa Region, Udzungwa Scarp FR, above Chita Village , 1500 m a.s.l., 2–13 Nov. 1984, pitfall traps in montane rain forest, N. Scharff leg. ( ZMUCAbout ZMUC)  ; 2 ♂♂, Iringa Region, Udzungwa Scarp FR, above Chita Village , 1500–1550 m a.s.l., 2–13 Nov. 1984, pitfall traps in montane rain forest, N. Scharff leg. ( ZMUCAbout ZMUC)  ; 1 ♂, Iringa Region, Udzungwa Scarp FR, above Chita Village , 1300 m a.s.l., 2–6 Nov. 1984, pitfall traps in montane rain forest, N. Scharff leg. ( ZMUCAbout ZMUC)  ; 2 ♂♂, Iringa Region, Udzungwa Scarp FR, above Chita Village , 1400 m a.s.l., 4–5 Nov. 1984, pitfall traps in montane rain forest, N. Scharff leg. ( ZMUCAbout ZMUC)  .

Description (male)

SIZE. Length 20 mm, max. width 1.9–2.1 mm.

COLOUR. After 33 years in alcohol all whitish.

ANTENNAE. Reaching back to middle of ring 3.

BODY RINGS. Paranota indicated by very faint ridges on body ring 2 (as in Fig. 4CView Fig. 4), otherwise completely absent. Stricture between pro- and metazonite not striolate. A transverse row of setae on all body rings, but the majority of setae abraded in most specimens.

HYPOPROCT. Large, trapezoid, with three prominent apical tubercles, middle tubercle larger.

LEGS. Length 1.2× body width. Relative lengths of podomeres: femur> prefemur> tarsus> tibia> postfemur. Scopulae ( Fig. 7B, DView Fig. 7) on femur, postfemur, tibia and tarsus until ca midbody, thereafter gradually disappearing.

STERNUM 5. A small trapezoid process between legs 4.

STERNUM 6. Deeply excavated. Rim of excavation simple.

GONOPODS ( Fig. 13View Fig. 13). Coxal lobe (cxl) moderate. Prefemoral part (prf) ca half as long as acropodite. Mesal acropodital process (map) a long, smooth, almost straight rod, apically pointed, subapically with small triangular side branch. Intermediate acropodital process (iap) a very slender, straight rod, densely covered in long spines on part of its surface, especially on apical part (Fig. E). Solenophore (sph) deeply split into two long lobes; dorsal lobe (sph-d) a very large, strong hook, almost reaching to tip of acropodital processes; ventral lobe (sph-v) much shorter, lanceolate; no intermediate process between sph-d and sph-v; internal surface of sph with a ridged area (ra, Fig. 13D, FView Fig. 13).

Distribution and habitat

Known only from the Udzungwa Scarp FR. Altitudinal range 1300–1550 m a.s.l. Habitat: montane rain forest. Collected together with E. chitense  sp. nov.

ZMUC

Zoological Museum, University of Copenhagen