Poeciloderrhis caracensis, 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 : 54-55

Taxon classification Animalia Blattodea Blaberidae

Poeciloderrhis caracensis sp. n. Figures 17-26

General coloration.

Shiny light brown (Fig. 17). Head with apex light brown; ocelli and region above ocelli and below antennal insertions brown. Eyes dark brown (Fig. 18). Pronotum light brown, semi-transparent with dark brown punctations and symmetrical spot centrally (Fig. 19); tegmina light brown, semi-transparent with dark brown spots. Legs light brown and pulvilli with spines, arolia and claws dark brown. Abdomen dark brown.

Dimensions (mm).

Total length: 21.3; total length of pronotum: 6.2; width of pronotum: 8.1; length of tegmen: 8.1; width of tegmen: 6.5.

Head.

Triangular with rounded edges, vertex slightly exposed in dorsal view; interocular space measuring about 1 mm. Eyes positioned antero-laterally; maxillary palps with first and second segments reduced, the latter 0.45 mm, third segment the largest, 25% longer than the fourth, which is equal to fifth and a little more dilated and very tomentose.

Thorax.

Pronotum wide, pentagonal, convex, with curved margins, base bearing small median projection. Legs developed, femur I bearing 3-6 strong spines up to the middle, followed by series of small spines towards apex, where two apical strong 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, similarly to those of legs. Tegmen not exceeding apex of abdomen.

Abdomen.

Tergal modification a tall structure on second segment, first segment with three median humps (Fig. 20). Supra-anal plate round with cerci short and tomentose dorsally (Fig. 21). Subgenital plate asymmetric, with left style in ventral view slender, filiform and well sclerotized; right style absent (Fig. 22). Genitalia with left phallomere bearing median structure shaped as sclerotized cleft (Fig. 23); median sclerite with quadrangular apex and a curved, well-developed spine (Fig. 24, 25). Right phallomere with curved apex bearing one small spine; prepucium with spines (Fig. 26).

Material examined.

Holotype ♂, Brazil, Minas Gerais, Serra do Caraça, XI/1969. F. M. Oliveira col. Paratype ♂ Brazil, Mato Grosso, Sinop, X/1974, Alvarenga & Roppa col. Paratype ♂ without locality data.

Diagnosis.

Poeciloderrhis caracensis sp. n. is similar to Poeciloderrhis verticalis (Burmeister, 1838) in coloration and habitus (in Roth, 1970 fig. 50), but differs in size ( Poeciloderrhis verticalis is 38,8 mm). Poeciloderrhis caracensis sp. n. also differs from Poeciloderrhis santosi (Rocha e Silva & Lopes, 1976) in size ( Poeciloderrhis santosi is 19,6 mm). The tergal modification also differentiates Poeciloderrhis verticalis and Poeciloderrhis caracensis . In Poeciloderrhis verticalis the first segment has one raised medial ridge and in the second segment has two projections; one hooked (basal) and one pyramidal (apical).

Etymology.

The species epithet refers to the locality where it was collected.