Euricrium varians ( Lane, 1955 )

Amorim, Dalton De Souza & Schnell, Guilherme, 2017, A new species of Euricrium Enderlein from southern Brazil, new records for E. varians (Lane), a new combination, and a key for the Neotropical species of the genus, Zootaxa 4231 (3), pp. 327-340 : 334

Euricrium varians ( Lane, 1955)

( Figs 3, 4 , 7, 8 , 10 , 12 , 15, 16 , 17)

Euricrium varians ( Lane, 1955) : 257 ( Zygoneura ). Type-locality: Brazil, State of São Paulo, Salesópolis (Estação Biológica de Boracéa). Distribution: southern Brazil and higher altitudes in southeastern Brazil. References: Amorim (1992), catalogue; Mohrig & Menzel (2014), redescription, figs. 10a-b (male gonostyle, 4th flagellomere). Holotype male, MZUSP.

Material examined. Holotype female, Brazil, State of São Paulo, Salesópolis ( Estação Biológica de Boracéa ), 14.viii.1947, E. Rabello, F. Travassos & J. Lane leg. (Reg. Nr. 7728, MZUSP) . Paratypes, 3 females, same data as holotype (Reg. Nr. 7729–7731, MZUSP) ; 1 female, State of Santa Catarina , Seara ( Nova Teutônia ) vii.1948, F. Plaumann leg. ( MZUSP) . Additional specimens: State of Santa Catarina: 1 female , Seara (Nova Teutônia), May , 1970, F. Plaumann leg.; 1 female, same data, but October, 1971 ; 1 female, but April, 1971; 3 females, same data, but May, 1971 ; 15 females, same data, but June, 1971 ; 4 females, same data, but July, 1971 ; 8 females, same data, but August, 1971 ; 1 male, 12 females, same data, but September, 1971 ; 2 females, same data, but October, 1971 ; 1 female, same data, but May, 1972 ; 1 female, same data, but June, 1972 ; 1 female, same data, but July, 1972 ( MZUSP) . State of Paraná: 5 males, 19 females, Araucária , sweeping at industrial pine ( Pinus taeda and P. elliotii ) log yards, October 26, 2015, G. Schnell e Schühli col. ( MZUSP) ; 2 males, 2 females, same data ( DZUP) ; 5 females, same data, but 10.x.2015 ( MZUSP) ; State of São Paulo: 1 female, Salesópolis, Estação Biológica de Boracea, July, 1949, Lane & Coher leg. ( MZUSP) .

Besides the original description of E. varians by Lane (1955: 257), Mohrig & Menzel (2014: 152) carefully redescribed the species, with the reexamination of the female holotype. Mohrig & Menzel (2014) had in hands male specimens from Costa Rica that were considered conspecific with the female holotype from Brazil and illustrated the male flagellomere 4 and the male gonostyle. We have in hands fresh material from the species and we include here color plates—habitus ( Figs 3–4 ), antenna ( Figs 7–8 ), thorax ( Fig 10 ), male terminalia ( Fig 12 ), and wing ( Figs 15–16 )—with details that help discriminating E. varians from other close congeneric species. The sexual dimorphism in color and in flagellomere shape and extension in E. varians is more striking than in E. edwardsi , sp. n.

Figures

FIGURES 1 – 4. Habitus. 1. Euricrium edwardsi, sp. n., male paratype. 2. E. edwardsi, sp. n., female paratype. 3. E. varians (Lane), male from Araucária, State of Paraná. 4. E. varians (Lane), female from Araucária, State of Paraná.

FIGURES 5 – 8. Basal flagellomeres (arrow indicates flagellomere 4). 5. Euricrium edwardsi, sp. n., male paratype. 6. E. edwardsi, sp. n., female paratype. 7. E. varians (Lane), male from Araucária, State of Paraná. 8. E. varians (Lane), female from Araucária, State of Paraná.

FIGURES 9 – 10. Lateral view of thorax. 9. Euricrium edwardsi, sp. n., female paratype. 10. E. varians (Lane), female, Araucária, State of Paraná. An = anepisternum; AnP = antepronotum; EmI = proepimeron; EmII = anepimeron; EsI = proepisternum; Kt = katepisternum; Sp = spiracle.

FIGURES 11 – 12. Ventral view of male terminalia. 11. Euricrium edwardsi, sp. n., paratype. 12. E. varians (Lane) from Araucária, State of Paraná.

FIGURES 13 – 16. Wing. 13. Euricrium edwardsi, sp. n., male paratype. 14. E. edwardsi, sp. n., female paratype. 15. E. varians (Lane), male. 16. E. varians (Lane), female from Araucária, State of Paraná.