Poeciloderrhis mangaratibensis, Silva & Lopes, 2020

Silva, Leonardo De Oliveira Cardoso Da & Lopes, Sonia Maria, 2020, Three new species of the genus Poeciloderrhis Stål, 1874 from Brazil (Blattodea Blaberidae, Epilamprinae) and neotype designation for Poeciloderrhis imperialis Rocha e Silva & Jurberg, 1978, Zootaxa 4810 (3), pp. 523-530 : 526-527

Poeciloderrhis mangaratibensis sp. n.

Figs. 12-21

Diagnosis. General coloration shiny dark brown ( Fig. 12 ). Head with brown vertex ( Fig. 13 ); interocular and interocelar spaces and half of superior portion of clypeus brown; inferior portion of clypeus and ocelli yellowish-brown; maxillary palps bicolored with brown apical segment, with golden cilia; eyes brown. Pronotum semi-transparent brown, with minute dark brown spots ( Fig. 14 ); tegmen semi-transparent, brown, with dark brown spots; legs light brown with brown spines, arolia and claws. Abdomen brown with dark brown punctuations.

Dimensions of holotype male (mm): total length 24.8; total length of pronotum 7.1; width of pronotum 8.4; length of tegmen 19.1; width of tegmen 6.6.

Description of holotype male. Head triangular, interocular space 1.8 mm wide. Abdominalterga differentiated, with longitudinal elevation in the middle of the first segment followed by a cordiform depression on the second segment ( Fig. 15 ); supra-anal plate rounded with a medial reterancy; cerci surpassing length of plate ( Fig. 16 ); on subgenital plate, left style in ventral view long, right style in ventral view short ( Fig. 17 ); left phallomere sclerotized ( Fig. 18 ); median sclerite presenting a curved apex, sclerotized, with aculeus in the pre-apex ( Figs. 19, 20 ); right phallomere with membrane bearing eleven spines ( Fig. 21 ).

Female. Unknown.

Material examined. Holotype male, BRAZIL, Rio de Janeiro State, Mangaratiba, Parque Estadual Cunhambebe, Sahy , trilha Sahy-Rubião , VII-VIII/2016, Barbosa, L. S. coll.

Etymology. The species name, mangaratibensis , is derived from the name of the locality where this specimen was collected.

Remarks. Poeciloderrhis mangaratibensis sp. n. is similar to P. ferruginea (Brunner von Wattenwyl, 1865) in the tergal modification (with longitudinal elevation in the middle of the first segment followed by a cordiform depression at the second segment). The new species may be distinguished from P. ferruginea by its general coloration (dark-brown in P. mangaratibensis sp. n., light brown for P. ferruginea ) and morphology of the genitalia (median sclerite of P. mangaratibensis sp. n. with curved, preapical projection larger than apical spine, while P. ferruginea has a straight pre-apical projection shorter than the apical spine).

Figures

FIGURES 12‒21. Poeciloderrhis mangaratibensis sp. nov. holotype ♂. 12—Habitus; 13—Head, ventral view; 14—Pronotum, dorsal view; 15—Tergal modification of first and second abdominal segments; 16—Supra-anal plate, dorsal view; 17—Sub- genital plate, ventral view; 18—Left phallomere, dorsal view; 19, 20—Median sclerite; 21—Right phallomere, dorsal view.