Abiliodesmus cataractae ( Hoffman, 1976 ), 2021

Bouzan, Rodrigo Salvador, Iniesta, Luiz Felipe M. & Brescovit, Antonio Domingos, 2021, Cladistic analysis and taxonomic review of the millipede tribe Arthrosolaenomeridini Hoffman, 1976 (Polydesmida: Chelodesmidae), Zootaxa 4970 (2), pp. 201-256 : 238

publication ID	https://doi.org/10.11646/zootaxa.4970.2.1
publication LSID	lsid:zoobank.org:pub:6DBA0C02-9E52-4FD0-8B48-8C7B405713A8
DOI	https://doi.org/10.5281/zenodo.4761637
persistent identifier	https://treatment.plazi.org/id/052487CF-FFEF-E507-46C6-B3C38E2AFB9A
treatment provided by	Plazi (2021-05-14 09:34:57, last updated 2021-09-19 04:10:05)
scientific name	Abiliodesmus cataractae ( Hoffman, 1976 )
status	new combination

Treatment

Abiliodesmus cataractae ( Hoffman, 1976) new combination

Figures 21 View FIGURE 21 , 24G–H View FIGURE 24 , 25 View FIGURE 25

Angelodesmus cataractae Hoffman, 1976: 174 , figs 1−6. Male holotype and female paratype from Fazenda Cachoeirinha GoogleMaps , Jataí (17°52’54”S, 51°42’51”W), Goiás, Brazil, XI.1962, Departamento de Zoologia Expedition coll., deposited in MZSP 1065 View Materials and 1066, respectively, examined.

Diagnosis. Adult males differ from all other species of the genus by the combination of the following characters: sternite of seventh body ring without ventral projections, presence of a large lateral expansion in the solenomere ( Figs 21D–E View FIGURE 21 ) and the prefemoral process not involving the solenomere, in ectal view ( Fig. 21E View FIGURE 21 ).

Description. Male (Holotype, MZSP 1065). Coloration (long-preserved in 70% ethanol): Head and antennae ochre with the seventh antennomere having three well-demarcated invaginations and one slight invagination between the sensory cones. Body ocher with the edges of the paranota whitish ( Figs 21A–C View FIGURE 21 ). Legs ocher yellowish. Telson ocher. Total length: 37.14. Total width: 5.88. Collum, length 1.83, width 5.52. Antennomere lengths (1>7): 0.52; 1.40; 1.25; 1.09; 1.03; 1.17; 0.30. Podomeres lengths (1>7): 0.69; 0.88; 1.98; 0.83; 1.03; 1.39; 0.45. Gonopod aperture, length 1.14, width 1.93. Telson, length 0.95. Gonopods: lost.

Female (Paratype, MZSP 1066). Body as in male. Total length: 35.90. Total width: 5.64. Antennomere lengths (1>7): 0.51; 0.91; 1.06; 1.06; 0.83; 1.16; 0.22. Podomeres lengths (1>7): 0.50; 0.74; 1.64; 0.55; 0.70; 1.13; 0.38. Telson, length 0.81. Epigyne rounded with regular edges. Vulvae ( Figs 24G–H View FIGURE 24 ): length 0.95, width 0.50. External valve: length 0.63, width 0.22. Internal valve: length 0.64, width 0.22. Operculum: length 0.32, width 0.39.

Distribution. Known only from the type locality ( Fig. 25 View FIGURE 25 ).

References

Hoffman, R. L. (1976) Chelodesmid studies IX. A synopsis of the new Brazilian tribe Arthrosolaenomeridini (Diplopoda; Polydesmida). Papeis Avulsos de Zoologia, 30, 171 - 183.

Figures

FIGURE 21. Abiliodesmus cataractae (Hoffman, 1976) comb. nov. (holotype, MZSP 1065), dorsal views of anterior (A), midbody (B) and posterior (C) body rings. Scale bars: 2 mm. Left gonopod (Modified by Hoffman, 1976). (D), mesal view; (E), ectal view. Scale bars: 0,5 mm. Abbreviations: C, cingulum; PfP, prefemoral process; S, solenomere.

FIGURE 24. Left vulva. Gangugia tapirapensis Schubart, 1947 (paralectotype, MZSP 1070): (A), ventral view; (B), lateral view. Gangugia mula n. sp. (paratype, IBSP 276): (C), ventral view; (D), lateral view. Abiliodesmus planaltensis (Schubart, 1960) comb. nov. (IBSP 3569): (E), ventral view; (F), lateral view. Abiliodesmus cataractae (Hoffman, 1976) comb. nov. (paratype, MZSP 1066). (G), ventral view; (H), lateral view. Scale bars: 0,5 mm.Abbreviations: EV, external valve; IV, internal valve; Op, operculum.