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).