Otostigmus (Dactylotergitius) caudatus Brölemann, 1902

Chagas-Júnior, Amazonas, Knysak, Irene & Guizze, Samuel P. G., 2007, Revalidation of the subgenus Dactylotergitius Verhoeff, and redescription of Otostigmus (D.) caudatus Brölemann and Otostigmus (D.) cavalcantii Bücherl (Scolopendromorpha: Scolopendridae: Otostigminae), Zootaxa 1639, pp. 57-67 : 59-61

Otostigmus (Dactylotergitius) caudatus Brölemann, 1902

Figs. 1–10

Otostigmus caudatus Brölemann, 1902: 37 –39; Kraepelin, 1903: 132; Attems, 1930: 161. Otostigmus (Dactylotergitius) caudatus Verhoeff, 1937: 11 ; Bücherl, 1939b: 259; 1941: 307. Otostigmus (Parotostigmus) caudatus Bücherl, 1974: 111 .

Type specimens: O. caudatus holotype male ( MZSP 197) from Francisco Morato [Bélem], state of São Paulo; paratypes male and female ( MZSP 199, 198) from Paranapiacaba [Alto da Serra] and Itapetininga, state of São Paulo; co-type male ( MNHN DCXXXVII) from Itapetininga.

Additional material examined: BRAZIL: Amazonas: Manaus, ( MNRJ 57948), 1 ex.; Paraíba: João Pessoa, Buraquinho, ( MNRJ 15086), 1 ex., P. F. L. D., 11-VI-1967; Bahia: Salvador, (Loteamento Alfavile), ( MNRJ 15180), 10 ex., G. G. Montingelli, 11-31-X-2001, Porto Seguro, Arraial da Ajuda, ( MNRJ 15241), 1 ex., Exped. Arachne, 24-27-II-2005; Goiás: Nova Roma ( IBSP 124), 1 ex., J. Kretz, 14 VIII 1942; Parque Nacional da Chapada dos Veadeiros ( MNRJ 15140), 4 ex., 21-XI-1940; São Domingos, Parque Estadual de Terra Ronca, MNRJ, 1 ex., A. Chagas, IX-2001; Distrito Federal: Brasília, ( MNRJ 15041), 1 ex., G. G. Montingelli, X-1999; Mato Grosso: Rio Branco, ( IBSP 747), 1 ex., F. de Fonseca, VI-1959; Mato Grosso do Sul: Brasilândia, Usina Hidrelétrica Sergio Motta, Fazenda Cisalpina, ( IBSP 1382), 2 ex., M. Sciaretta, 17 VII 2000, Brasilândia, Usina Hidrelétrica Sergio Motta, Fazenda Cisalpina, ( IBSP 1463), 3 ex., R. Bertani & C. Y. Fukami, 8-12 VIII 2000, Anaurilândia, ( IBSP 1449, 1450, 1460), 6 ex., 1999; Minas Gerais: Rio Preto, ( MNRJ 15242), 4 ex., Exped. Arachne, 14-20-V-2001; Espírito Santo: Pinheiros, ( MNRJ 15244), 1 ex., Exped. Arachne, 23-X-2005, Sooretama ( MNRJ 15246), 1 ex., Pellens, R., VIII-2000, Fundão ( MNRJ 15247), 1ex., A. F. Barbosa, 15-VII-2002, Santa Teresa, Santa Lucia, ( MNRJ 15245), 1 ex., A. Giupponi & M. Mirelli, 11- 12-V-2005; Rio de Janeiro: Barra de São João ( MNRJ 15240), 4 ex., Exped. Arachne, 24-III-2003, Rio de Janeiro, Campo Grande, ( MNRJ 15243), 1 ex., H. N. Cunha, 28-X-1964, Itatiaia, ( MNRJ 15248), 1 ex., Volta Redonda, ( IBSP 281), 1 ex., Padres Beneditinus, 29 III 1944; Petrópolis, ( IBSP 1480), 1 ex., F. S. cunha et all, II 2000; São Paulo: São Paulo, Instituto de Lepra, ( IBSP 245), 1 ex., 25-VIII-1944, Instituto Biológico, ( IBSP 278), 1ex., J. Ferraz, 10-V-1944, Santana, ( IBSP 355), 1 ex., W. Bücherl, 08-IV-1943, Ipiranga, ( IBSP 391), 1 ex., E. Krögee, III-1945, ( IBSP 428) 1 ex., A. Silva, 17-IX-1943, Santana, ( IBSP 458), 1 ex., W. Bücherl, 14- IV-1945, Freguesia do Ó, ( IBSP 973), 1 ex., A. Ozores Junior, 27-XI-1968, Vila Sônia, ( IBSP 980), 2 ex., A. D. Russo, 28-VII, Jardim Bonfiglioli, ( IBSP 1008), 1 ex., M. S. Fonseca, Morumbi, ( IBSP 1314), 1 ex., T. M. Batista, 6-I-1995, Morumbi, ( IBSP 1321), 1 ex., A. P. Santos, 12-XII-1984, ( IBSP 1336), 1ex., N. S. Geraldo, 30-IX-1993, Parque dos Príncipes, Jardim Adalgisa, ( IBSP 372, 1373), 3 ex., Equipe Lab. Artrópodes, 16-I-1987, Rodovia Presidente Dutra, Km. 40, Cachoeira Paulista, ( IBSP 1416), 1 ex., Instituto Nacional de Pesquisas Espaciais, 24-VI-1999, Parque Ipê, ( IBSP 1429), 1 ex., M. L. Amaral, 15- XII-2000, ( IBSP 1483), 1 ex., N dos S. Geraldo, 30-IX-1993; São Miguel Paulista ( IBSP 822), 1 ex., A. Castellucci, 15-III-1954; Guarulhos ( IBSP 641), 1 ex., L. Viban, 18-III-1951; Osasco ( IBSP 1430), 1 ex., L. R. Souza, 08-III-2001; Itatins, Peruíbe, Estação Ecológica Juréia, ( IBSP 1320), 1 ex., A. D. Brescovit et. al., XII- 1998; Itapevi ( IBSP 1451), 1 ex., J. Bartoski, 7-XII-2000; Francisco Morato ( IBSP 1324), 1 ex., M. R. M. Aulicino, 13-X-1995; Barueri ( IBSP 541, 543), 2 ex., J. Q. Morcira & J. Arentes, 06-08-X-1947, ( IBSP 1067), 1 ex., M. P. Santos, 5-V-1980; Jandira ( IBSP 977), 1 ex., M. Chiavelli, 23-IV-1969; Vargem Grande ( IBSP 1359), 1 ex., F. A. de Q. Ablas, 5-III-1992; Taboão da Serra ( IBSP 1315), 1 ex., H. T. G. Grotto, 27-VI-1988; São Sebastião ( MNRJ), 1 ex., U. Caramaschi, 29-I-1982; Serra da Bocaina ( MNRJ), 1 ex., A. Timotheo, 22-X- 1960; Ilha de Alcatrazes ( IBSP 409, 413, 416, 417, 431, 452, 454, 499, 510, 531, 538, 545, 550, 556) 20 ex., Expedição Butantan, 24-II-1948, Ilha de Alcatrazes ( IBSP 630), 1 ex., Expedição Butantan, II-1950; Ilha da Queimada Grande ( IBSP 1004), 5 ex., Expedição Butantan, 9-13-IX-1970; São Sebastião, Ilha Bela ( IBSP 576, 581, 623, 628, 681, 853), 6 ex., L. Urban, XI-1949; Ilha de Castilho ( IBSP 828), 1 ex., 15-III-1945; Juréia [Peruíbe, Itatins] ( IBSP 1472), 1 ex., A. D. Brescovit et. Al;.Garça ( IBSP 501), 1 ex., 26-XII-1945; Itu ( IBSP 502), 1 ex., 29-XII-1945, Rio Claro ( IBSP 366), 1 ex., J. A. Moreira, 19-VII-1943; Rosana [Porto Primavera] ( IBSP 1433, 1436, 1438, 1443), 15 ex., Equipe Instituto Butantan, 1999-2000; Paraná: Foz do Jordão ( MHNCI), 10 ex., A. Chagas, V-1995; Santa Catarina: Florianópolis [Lagoa] ( IBSP 51) 1 ex., I. Cordeiro, 27- IX-1935; Rio Grande do Sul: Uruguaiana ( IBSP 453), 1 ex., D. Mengue, 28-IX-1943; Tupanciritã ( IBSP 624), 1 ex., C. Temer, 14-X-1949.

Diagnosis: Body color commonly purple, dark blue or light blue (living specimens). Antennae with 18 antennomeres, the first two glabrous, the remaining antennomeres densely covered with short yellow setae Cephalic plate, tergites and sternites smooth; complete paramedian sutures from 6th to 20th tergite; sternites with two short anterior sutures from 4th to 16th, posterior border of sternite 21 slightly concave. Ultimate tergite of males with digitiform prolongation (“appendix”) and coxopleuron without coxopleural process.

Redescription of male: Body length 25 mm (holotype). Body color commonly purple, dark blue or light blue; legs and antennae light blue; setae of antennae yellow (living specimens). Cephalic plate smooth, wider than long (2.8 mm/ 2.5 mm), oval in the front part, without marginal sutures or depressions, but with fine punctuations ( Fig. 1 ). Antennae reaching back to the sixth segment, with 18 antennomeres, rarely 17; first two antennomeres glabrous, third glabrous dorsally, but pubescent ventrally; the remaining antennomeres are covered with short yellow setae. Forcipular coxosternum with fine punctuations, tooth plates wider than long, with a setae in the middle of each plate; 5+5 teeth, trochanteroprefemoral process with two (or three) teeth on the medial margin ( Fig. 2 ). Tergites smooth, with shallow complete paramedian sutures from 6th (7th) to 20th tergite; lateral carina present on the ultimate (21st) tergite. The posterior margin of tergite 21 presents a digitiform prolongation, longer than the tergite ( Figs. 3, 4, 5 ). The apex of the digitiform prolongation is rounded, flattened laterally (where it forms a socket) and bearing a series of yellowish setae on each side ( Fig. 11 ) Sternites smooth, but with fine punctuations; with two anterior sulci from the 4th to 16th sternite ( Fig. 6 ); sternite 21 shorter than the preceding one, longer than wide, with posterior margin concave ( Fig. 3 ). Coxopleuron with numerous small irregular pores, posterior part of the coxopleuron with a little rounded prominent lobe, without coxopleural process or spines ( Fig. 3, 4 , 10 ). Legs: (holotype) first leg with two tarsal spurs and one tibial and one femoral spur; legs 2 to 11 missing, 12th to 19th legs with one tarsal spur, 20th and 21st legs without spur; ultimate legs long, without spines on the prefemur.

Variation: Legs usually with two tarsal spurs on the first three, four or five legs, sometimes to 11th or 13th; one tarsal spur on the fourth, fifth or sixth legs, sometimes on 12th or 14th and without spur on the 20th and 21st.

Redescription of female: Same characters as male, except for tergite 21 and the coxopleura. In females the posterior margin of tergite 21 is angulate, but not extended as in males ( Fig. 8 ). The terminal portion of the coxopleura does not present the prolongation or rounded shape ( Figs. 7, 9 ).

Figures

FIGURES 1 – 9. Otostigmus caudatus: Fig. 1 male (MNRJ 15244) from Pinheiros, Fig. 2 female (MNRJ 15240) from Barra de São João, Figs. 3 – 5 males (MNRJ 15180) from Salvador, Figs. 6 - 9 females (MNRJ 15180) from Salvador. 1 cephalic plate, 2 forcipular coxosternum, 3 segment 21 st, ventral, 4 the same, dorsal, 5 the same, lateral, 6 sternites 14 th and 15 th, 7 segment 21 st, ventral, 8 the same, dorsal, 9 the same, lateral. Scale bars Figs. 1 – 9, 1 mm.

FIGURES 10 – 13. Otostigmus caudatus: male (MNRJ 15180) from Salvador, 10 segment 21 st, lateral, 11 apex of the digitiform prolongation. Figs. 12 - 13. Otostigmus cavalcantii: male (MNRJ 15066) from Santa Cecília. 12 segment 21 st, lateral, 13 apex of the digitiform appendix. Scale bars Figs. 10 - 11, 100 µm. Figs. 12 - 13, 100 µm. Ca, coxopleural appendix.