Arthrosolaenomeris pantanalensis Schubart, 1943

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 : 213-216

Arthrosolaenomeris pantanalensis Schubart, 1943

Figures 5 , 10C–D , 11

Arthrosolaenomeris pantanalensis Schubart, 1943: 145 , 161, 162, figs 39−45. Male holotype from São Luiz de Cáceres (Now Cáceres), (16°04’15”S, 57°40’44”W), Mato Grosso, Brazil, II.1940, Passarelli coll., deposited in MZSP 1085, examined; Schubart, 1958: 238; Hoffman, 1976: 177; Golovatch, Hoffman, Adis, Marques, Raizer, Silva, Ribeiro, Silva and Pinheiro, 2005: 276.

Additional material. BRAZIL: Mato Grosso: Cáceres (16°04’15”S, 57°40’44”W), 18 ind., XII.1997, M. Callefo coll. ( IBSP 530 ) ; 7♂, X.1917, E. Garbe coll. ( MZSP 410 ) ; Porto Estrela (15°19’28”S, 57°13’39”W), Estação Ecológica Serra das Araras , 2♂ and 2♀, 12.XI.2017, T. F. Conceição coll. ( CZUFMT 847 ) ; 2♂, 19.XI.2017, N. Barrozo coll. ( CZUFMT 848 ) ; 5♂, 19.XI.2017, T. F. Conceição coll. ( CZUFMT 842 ) ; 1♂, 16.XI.2015, A. Chagas-Jr and A.B. Kury coll. ( CZUFMT 845 ) ; Chapada dos Guimarães (15°27’39”S, 55°44’58”W), Chapada Aventura , 2♂ and 1♀, 07.XI.2015, A. Chagas-Jr et al. col. ( CZUFMT 840 ) ; Fazenda Morro da Lage , 1♂, 28.X.2017, M. Moreno coll. ( CZUFMT 846 ) ; Cuiabá (15°35’47”S, 56°05’48”W), Bairro Nova Esperança I, 1♂, 17.XII.2015, E. Santos coll. ( CZUFMT 844 ) ; campus UFMT, 1♂, Marques and Hallis coll. ( CZUFMT 832 ) ; Sede EESA — Arquidiocesana de Cuiabá , 4♀, 16.XI.2015 ( CZUFMT 843 ) ; Nova Xavantina (14°40’24”S, 52°21’11”W), 2♂ and 2♀, XII.1946, H. Sick coll. ( MZSP 1087 ) ; 1♂, XII.1946, H. Sick coll. ( MZSP 1088 ) .

Diagnosis. Adult males differ from all other species of the genus by the combination of the following characters: absence of indentations in the prefemoral process ( Fig. 5D ) and a long secondary process in the prefemoral process ( Figs 5D–F ).

Description. Male (Holotype, MZSP 1085). Coloration (long-preserved in 70% ethanol): head reddish yellow and antennae ocher. Body reddish brown and paranota tip with the same color as the body ( Figs 5A–C ). Legs reddish brown. Telson ocher. Total length: 60.16. Total width: 9.05. Collum, length 2.73, width 8.74. Antennomere lengths (1>7): 0.77; 1.80; 1.82; 1.45; 1.43; 1.40; 0.42. Podomere lengths (1>7): 1.02; 1.26; 2.25; 1.32; 1.60; 1.57; 0.52. Gonopod aperture, length 1.76, width 2.86. Telson, length 1.12. Gonopod: length 2.90, width 2.17. Gonocoxae: length 1.01, width 1.14. Telopodite: length 2.76, width 1.06. Prefemoral process long (greater than the solenomere) and narrow ( Fig. 5E ). Presence of a large secondary process positioned in its medial portion ( Fig. 5D ). Posterior portion to the secondary process without indentations. Solenomere long and narrow ( Fig. 5F ). Cingulum positioned centroposteriorly ( Fig. 5F ). Apex of the solenomere abruptly descending ( Fig. 5D ).

Female (CZUFMT 847). Body as in male. Total length: 50.48. Total width: 6.92. Antennomere lengths (1>7): 0.54; 1.39; 1.12; 1.06; 1.13; 1.04; 0.25. Podomeres lengths (1>7): 0.62; 0.82; 1.87; 0.71; 0.76; 1.22; 0.39. Telson, length 0.97. Epigyne triangular shaped. Vulvae ( Fig. 10C–D ): length 1.06, width 0.55. External valve: length 0.76, width 0.24. Internal valve: length 0.69, width 0.26. Operculum: length 0.30, width 0.50.

Distribution. State of Mato Grosso, Brazil ( Fig. 11 ).

Figures

FIGURE 5. Arthrosolaenomeris pantanalensis Schubart, 1943 (holotype, MZSP 1085), dorsal views of anterior (A), midbody (B) and posterior (C) body rings. Scale bars: 2 mm. Left gonopod. (D), mesal view; (E), ventral view; (F), ectal view. Scale bars: 1 mm. Abbreviations: C, cingulum; PfP, prefemoral process; S, solenomere; SPr, secondary process of the prefemoral process.

FIGURE 10. Left vulva. Arthrosolaenomeris chapadensis Schubart, 1943 (IBSP 1049): (A), ventral view; (B), lateral view. Arthrosolaenomeris pantanalensis Schubart, 1943 (CZUFMT 847): (C), ventral view; (D), lateral view. Arthrosolaenomeris saci n. sp. (paratype, IBSP 2577): (E), ventral view; (F), lateral view.Arthrosolaenomeris iara n. sp. (paratype, IBSP 7537). (G), ventral view; (H), lateral view. Scale bars: 0,5 mm. Abbreviations: EV, external valve; IV, internal valve; Op, operculum.

FIGURE 11. Distribution map of Arthrosolaenomeris Schubart, 1943 species.