Poeciloderrhis minoris, Cardoso de Oliveira da Silva, Leonardo & Lopes, Sonia Maria, 2015

Cardoso de Oliveira da Silva, Leonardo & Lopes, Sonia Maria, 2015, Synopsis of Poeciloderrhis Stal, 1874, with the description of three new species, and a redescription of the male and female of Poeciloderrhisferruginea (Brunner von Wattenwyl, 1865) from southeast Brazil (Blattodea, Blaberidae, Epilamprinae), ZooKeys 545, pp. 53-65 : 55-56

Taxon classification Animalia Blattodea Blaberidae

Poeciloderrhis minoris sp. n. Figures 27-36

General coloration.

Shiny light brown (Fig. 27). Head with vertex light brown; interocular space between ocelli and antennal insertions brown; other regions light brown with brown stripe from between antennae to the tip of the clypeus. Ocelli brown; maxillary palps with apical segment brown, cilia golden. Eye black (Fig. 28). Pronotum light brown, semi-transparent with dark brown punctations (Fig. 29); tegmen light brown, semi-transparent with dark brown spots. Legs light brown with spine, pulvilli, arolia and claws dark brown. Abdomen light brown with brown punctations.

Dimensions (mm).

Total length: 17.1; total length of pronotum: 5.4; width of pronotum: 7.1; length of tegmen: 12.8; width of tegmen: 5.3.

Head.

Triangular with rounded edges, vertex slightly exposed in dorsal view; interocular space 1.4 mm. Eyes positioned antero-laterally; maxillary palps with first and second segments reduced, the latter 0.43 mm, third segment 25% of fourth, and smaller than fifth segment, which is a little more dilated and very tomentose.

Thorax.

Pronotum wide, pentagonal, convex, with curved margins, base bearing small median projection. Legs developed; proximal half of femur I bearing 5 strong spines on anteroventral surface followed by series of small spines towards apex, where two strong apical spines are present; posteroventral surface with three strong spines, one apical; femora II and III with strong spaced spines on ventral surfaces. Pulvilli present on four tarsal segments, claws symmetrical and specialized, with two rows of small spines on ventral surface. Tegmen not reaching beyond apex of abdomen.

Abdomen.

Tergal modification a tall triangular structure between two humps. Below that, a pyramid-shaped hump (Fig. 30). Supra-anal plate round with cerci short; cerci with row of cilia on each segment (Fig. 31). Subgenital plate asymmetrical with apical cleft, with left style in dorsal view long, filiform and sclerotized; right style absent (Fig. 32). Internal genitalia with left phallomere with median structure shaped as sclerotized cleft (Fig. 33); median sclerite developed as a spine with sclerotized apical curvature (Figs 34, 35). Right phallomere with curved apex and a small thorn near the apex; lateral shaft of phallomere with spines (Fig. 36)

Material examined.

Holotype ♂, Brazil, São Paulo, Campos do Jordão, X/1954. P.H. Saldanha col.

Diagnosis.

Poeciloderrhis minoris sp. n. is small (17.1 mm) when compared with the other described species. It has short wings, similar to the wings of Poeciloderrhis santosi (Rocha e Silva & Lopes, 1976), but can be distinguished from it in the tergal modification that is similar to Poeciloderrhis caracensis sp. n., general coloration and genital parts: the right phallomere is wider apically and the apical thorn at the apex of the median sclerite is reduced.

Etymology.

The minoris is from the Latin minor, referring to the small size (17.1 mm) of this species when compared to the other described species.