Bacillidesmus Attems, 1898

Antic, Dragan, Vagalinski, Boyan, Stoev, Pavel & Akkari, Nesrine, 2022, A review of the cavernicolous Trichopolydesmidae (Diplopoda, Polydesmida) from the Carpathian-Balkan arch and the Rhodope Mountains, with descriptions of two new genera and three new species, ZooKeys 1097, pp. 1-46 : 1

Genus Bacillidesmus Attems, 1898

Type species.

Brachydesmus filiformis Latzel, 1884, by monotypy.

Diagnosis.

The monospecific Bacillidesmus seems to be the only European Trichopolydesmidae characterized by four regular rows of relatively long trichoid setae on rings 4-18 (Fig. 1A ).

In addition, the diagnosis can be amended with the following combination of characters (see also Remarks): small species (4-4.5 mm), 19 body rings (including telson), sensilla basiconica completely enclosed inside the pit of antennomere 6, hypoproct with only two long distal setae, paraprocts with only 2+2 long setae, anterior legs in male with ventral denticles on prefemora, femora, postfemora, tibiae and tarsi (Fig. 1E, F ), gonopod telopodite deeply divided into two branches, solenomere (s) and solenophore (sph) situated one below the other, solenomere long and simple, with a lamella, but without additional processes (Figs 1G , 17A-C ).

Figures

Figure 1. Bacillidesmus filiformis (Latzel, 1884), type material A paralectotype ♀ (NHMW MY 10266), habitus, lateral view B lectotype ♂ (NHMW MY 3754) body rings 8 - 19, dorsal view C lectotype ♂ (NHMW MY 3754) head and body rings 1 - 6, dorsal view D paralectotype ♀ (NHMW MY 10266) left leg 4, posterior view E lectotype ♂ (NHMW MY 3754) right leg 4, anterior view F lectotype ♂ (NHMW MY 3754) right leg 10, posterior view G lectotype ♂ (NHMW MY 3754) gonopod, mesal or lateral view. Abbreviations: s solenomere, sph solenophore. Scale bars: 0.5 mm (A-C), 0.1 mm (D-F), 0.05 mm (G).

Figure 17. Gonopods of cavernicolous Trichopolydesmidae from the Carpathian-Balkan arch and Rhodopes A-C Bacillidesmus filiformis (Latzel, 1884) lectotype ♂ (NHWM MY 3754) A after Attems (1898) B? left gonopod,? mesal view, after Attems (1940) C? left gonopod,? mesal view, present study D Banatodesmus jeanneli (Tabacaru, 1980) syntype ♂, right gonopod, mesal view, after Tabacaru (1980) E, F Napocodesmus florentzae Tabacaru, 1975 holotype ♂, right gonopod, mesal and anterior views, respectively, after Tabacaru (1975) G, H Trichopolydesmus eremitis Verhoeff, 1898 ♂ from Closani cave, right gonopod, antero-mesal and mesal views, respectively, after Ceuca (1958) I Balkanodesminus bulgaricus (Strasser, 1962) gen. nov., comb. nov. ♂ from Ponora Cave (NMNHS- 10813), left gonopod, mesal view J Balkanodesminus serbicus gen. nov. et sp. nov. paratype ♂ (NHMW MY 10263), left gonopod, mesal view K Rhodopodesmus niveus gen. nov. et sp. nov. holotype ♂ (NMNHS- 10823), left gonopod, mesal view L Balkanodesminus dentatus (Strasser, 1966 a) gen. nov., comb. nov., stat. nov. syntype ♂, right gonopod, mesal view, after Strasser (1966 a) M Balkanodesminus dentatoides gen. nov. et sp. nov. paratype ♂ (NHMW MY 10258), right gonopod, mesal view N Balkanodesminus dentatoides gen. nov. et sp. nov. ♂ from Sopotska Cave (NHMW MY 10267), left gonopod, mesal view. Scale bars: 0.05 mm.