Ommatoiulus oliveirae ( Verhoeff, 1893 )

Nesrine Akkari & Henrik Enghoff, 2017, Revision of the genus Ommatoiulus Latzel, 1884 (Julida, Diplopoda) in Portugal, with description of six new species, European Journal of Taxonomy 295, pp. 1-42 : 24-25

Ommatoiulus oliveirae ( Verhoeff, 1893)

Fig. 17

Julus oliveirae Verhoeff, 1893b: 161 –163, figs 27–28.

Palaioiulus oliveirae – Verhoeff 1894: 156, fig. III

Ommatoiulus oliveirae – Vicente 1985: 324. — Bailey & De Mendonça 1990: 104.

Material examined

PORTUGAL: Syntype, gonopods, slide preparation (ZMB13086) herewith designated as lectotype of Julus oliveirae ; 3 ♂♂, 3 ♀♀, 1 slide preparation, undetermined locality, Paulino d’Oliveira leg. (NHMW 8044); 2 ♂♂, 1 ♀, Setúbal District, Grândola, under stones, in grassland, 3 Nov. 1986, P. Bailey leg. (ZMUC).

Diagnosis

Most similar to O. armatus and O. dorsovittatus in the voluminous solenomerite with lobes and a serrated furrow, the presence of a lateral notch on the promerite and the reduced paracoxite. Different in the distal part of the mesomerite, promerite and a more slender shape of the solenomerite and paracoxite.

Descriptive notes

Promerite simple, in posterior view gradually narrowing in its distal half, apex rounded and lateral margin shallowly incised ( Fig. 17 A, C); mesomerite (Ms) large, extending beyond the rest of the processes, curved laterad and distally expanding into two oppositely directed processes ( Fig. 17 B, D); solenomerite (S) with a main process reaching ¾rd of mesomerite length, marginally strongly serrated, apically with a rounded lobe covered with short spines and a small pointed accessory process ( Fig. 17 D), paracoxite (Px) slender, almost as long as solenomerite ( Fig. 17 B, D) and emerging from a broad coxa (Cx).

Distribution

PORTUGAL: Coimbra ( Verhoeff 1893b); Setubal Province, Grândola where it is sympatric with O. moreleti and O. lusitanus ( Bailey & De Mendonça 1990) .

Additional records (Kime, pers. comm.): Faro Province, West of Monchique, in cork litter, 29 Sep. 1987, P.T Bailey.

Habitat

Abundant in Quercus litter but also found in Cistus litter, also occurring in grasslands ( Bailey & De Mendonça 1990), syntopic with O. moreleti and O. lusitanus .

Figures

Fig. 17. Ommatoiulus oliveirae (Verhoeff, 1893). A – B. Syntype, slide preparation (ZMB 13086). A. Promerites, posterior view. B. Posterior gonopod, posterior view. C – D. Slide preparation (NHMW 8044). C. Promerites, posterior view. D. Posterior gonopods, posterior view.