Eviulisoma zebra, Enghoff, 2018

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 Brolemann, 1920, and Suohelisoma Hoffman, 1963 (Diplopoda, Polydesmida, Paradoxosomatidae), European Journal of Taxonomy 445, pp. 1-90 : 63-66

publication ID

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

publication LSID

lsid:zoobank.org:pub:852A3F68-B728-413A-B12E-56F306D56C35

DOI

http://doi.org/10.5281/zenodo.5681618

persistent identifier

https://treatment.plazi.org/id/CDF79D62-E412-4DC3-AE93-6832AAC737A4

taxon LSID

lsid:zoobank.org:act:CDF79D62-E412-4DC3-AE93-6832AAC737A4

treatment provided by

Plazi

scientific name

Eviulisoma zebra
status

sp. nov.

Eviulisoma zebra   sp. nov.

urn:lsid:zoobank.org:act:CDF79D62-E412-4DC3-AE93-6832AAC737 A 4

Figs 1 View Fig. 1 , 4C View Fig. 4 , 30–31 View Fig. 30 View Fig. 31

Diagnosis

Differs from other species of the E. sternale   group by the combination of its large size (width 3.0 mm), the lack of an apical dentate ridge on map and the lack of modification of post-gonopodal prefemora and femora.

Etymology

A noun in apposition alluding to the striped appearance of this species.

Material studied (total: 5 ♂♂)

Holotype

TANZANIA: ♂, Udzungwa Mts National Park , 07°40.786´S, 36°55.120´E, 1450 m a.s.l., 8 Oct. 2014, Martin Nielsen leg. ( ZMUC). GoogleMaps  

Paratypes

TANZANIA: 4 ♂♂, same collection data as for holotype (ZMUC).  

Description (male)

SIZE. Length 31 mm, max. width 3.0 mm.

COLOUR. Live ( Fig. 1 View Fig. 1 ) and freshly preserved animals vividly ringed. Head, collum, telson and metazonites except for a narrow anterior zone deep black, contrasting with white prozonites, antennomeres 1–5 and legs; antennomeres 6–7 brown.

ANTENNAE. Reaching back to anterior part of ring 5.

BODY RINGS. Paranota absent, except for tiny keels on ring 2 ( Fig. 4C View Fig. 4 ). Stricture between pro- and metazonite clearly striolate ( Fig. 30 A View Fig. 30 ). A transverse row of setae on ring 2, ring 3 sometimes with a few tiny setae, following rings without setae.

HYPOPROCT. Rounded-trapezoid, without distinct tubercles.

LEGS. Length 1.3× body width. Relative lengths of podomeres: femur> prefemur = tarsus> tibia> postfemur. Legs densely hirsute on ventral surface ( Fig. 30D View Fig. 30 ), but proper scopulae poorly developed, on postfemur, tibia and tarsus ( Fig. 30C View Fig. 30 ); those on tarsus also present on posteriormost legs, however.

STERNUM 5. A rounded-trapezoid process between legs 4.

STERNUM 6 ( Fig. 30B View Fig. 30 ). Deeply excavated. Lateral rims of excavation produced into two lobes on each side, one lobe at basis of each leg.

GONOPODS ( Fig. 31 View Fig. 31 ). Coxal lobe (cxl) prominent. Prefemoral part (prf) ca 0.3× as long as acropodite. Mesal acropodital process (map) long, slender, slightly curved, apically divided into three pointed tines (tn1, tn2, tn3); ventral tine (tn1) process largest, separated from the two others by a V-shaped incision; lumps of an amorphous mass (am) adhering to tip of map. Solenophore (sph) ca 0.7× as long as map, a simple rolled sheet, ending in two small processes, one slender, the other broadly triangular.

Distribution and habitat

Known only from the Udzungwa Mts National Park, 1450 m a.s.l.

Remarks

Although this species is very similar to the two other species in the E. sternale   group, especially to E. kangense   sp. nov., it differs by lacking the peculiar modifications of the prefemur and femur of at least some post-gonopodal legs.

ZMUC

Zoological Museum, University of Copenhagen