Poeciloderrhis marombensis, 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 : 527-528

Poeciloderrhis marombensis sp. n.

Figs. 22–31

Diagnosis. General coloration shiny brown ( Fig. 22 ). Head with dark-brown vertex ( Fig. 23 ); ocelli filmy; maxillary palps brown with dark-brown apical segment, with golden setae eyes gray. Pronotum semi-transparent brown, with diminute dark-brown spots on the side edges, trapezoidal central spot extending from the base to the apex ( Fig. 24 ); tegmen semi-transparent, brown, with dark brown spots; discoidal vein dark brown; legs light brown with brown spines and claws; pulvilli and arolia white. Abdomen pale brown with dark brown punctuations.

Dimensions of holotype male (mm): total length 22.9; total length of pronotum 5.0; width of pronotum 7.0; length of tegmen 20; width of tegmen 5.6.

Description of holotype male. Head with interocular space measuring 1.17 mm wide. Abdominal tergal modified, with longitudinal elevation in the middle of the first segment followed by two elevations on the second segment ( Fig. 25 ). Cerci surpassing length of supra-anal plate ( Fig. 26 ); in ventral view left style of subgenital plate long, and the right styleshort ( Fig. 27 ); left phallomere sclerotized ( Fig. 28 ); median sclerite sinuous in the apical third, with thorn-shaped, sclerotized apex ( Figs. 29, 30 ); right phallomere with membrane bearing eleven spines ( Fig. 31 ).

Female. Unknown.

Material examined. Holotype male, Brazil, Rio de Janeiro State, Itatiaia, PNI, Maromba Complex, Véu-da- Noiva´s waterfall, PNI-M2A, 22º25’36.10” S, 44º37’05.80 W, XI-XII/2015 , BIOTA / FAPERJ Project.

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

Remarks. Poeciloderrhis marombensis sp. n. and P. mediansclerostylatus Silva & Lopes, 2018 have the same tergal modifications (elevation in the middle of the first segment followed by two elevations on the second segment). The new species is shorter than P. mediansclerostylatus (23 mm vs. 30‒31 mm). The morphology of the genitalia also differ: the apical third of the median sclerite is straight and a preapical projection is present in P. mediansclerostylatus ), while in P. marombensis sp. n. the apical third of the median sclerite is sinuous and lacks a preapical projection.

Figures

FIGURES 22‒31. Poeciloderrhis marombensis sp. nov. holotype ♂. 22—Habitus; 23—Head, ventral view; 24—Pronotum, dorsal view; 25—Tergal modification of first and second abdominal segments; 26—Supra-anal plate, dorsal view; 27—Sub- genital plate, ventral view; 28—Left phallomere, dorsal view; 29, 30—Median sclerite; 31—Right phallomere, dorsal view.