Shiny dark brown (Figs 1 and 11). Head with vertex, interocular space between ocellar fenestra and antennae brown. Two brown spots below ocellar fenestra. Maxillary palps with brown apical segment, with golden cilia. Eyes black (Fig. 2). Pronotum semi-transparent with dark brown punctuation (Fig. 3). Tegmen semi-transparent, light brown, bearing dark brown spots. Legs light brown with spines, arolia and claws brown. Abdomen light brown with brown punctation.

Figures 1–10. 

Poeciloderrhis ferruginea (Brunner Von Wattenwyl, 1865) male 1 habitus 2 head, ventral view 3 pronotum, dorsal view 4 tergal modification in 1^th tergite and 2^th5 supra-anal plate, dorsal view 6 subgenital plate, ventral view 7 left phallomere, dorsal view 8–9 median sclerite, dorsal view 10 right phallomere.

Total length: 32; total length of pronotum: 6.57; width of pronotum: 7.5; length of tegmen: 27.1; width of tegmen: 6.1.

Triangular with rounded angles, vertex hidden in dorsal view; interocular space measuring about 1 mm; antennae long, slender and tomentose, reaching beyond apex of cerci. Eyes antero-lateral in position; maxillary palps with first and second segments reduced, the second measuring 0.41 mm, third segment 25% longer than fourth and 25% shorter than fifth segment, which is a little more dilated and very tomentose.

Pronotum wide, pentagonal, convex, with curved margins, base with small median projection. Legs developed, half of femur I with anteroventral surface bearing four strong spines, 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 showing strong spaced spines on their ventral surfaces. Pulvilli present on fourth tarsal segment, claws symmetrical and specialized, with two rows of small spines on ventral surface. Tegmen reaching beyond apex of abdomen. Marginal field wide, slightly concave, convex, curved, discoidal field convex and short at apex, anal field convex and well-marked.

Tergal modification pyramid-shaped, tall, with cilia, located on first tergite and depression followed by curved stalk on second tergite (Fig. 4). Supra-anal plate round with cerci reaching beyond the plate (Fig. 5). Subgenital plate asymmetric, with two slender styles, one long, and one short; larger style with sharper lateral tomentosity (Fig. 6). Left phallomere with median structure shaped as sclerotized cleft (Fig. 7). Median apical sclerite spiniform with intense sclerotization, with membranous sclerotized structure bearing lateral shaft and slender pre-apical structure (Figs 8, 9). Right phallomere with straight apex and a small spine next to apex; lateral portion of phallomere with spines (Fig. 10).

Total length: 33.5; total length of pronotum: 7.7; width of pronotum: 9.45; length of tegmen: 29.3; width of tegmen: 7.8. Female larger than male; brown color of vertex extending to frons (Fig. 12); pronotum brown; in the abdomen, anal plate enlarged with indistinct slit medially, cerci poorly developed reaching apex of plate (Fig. 14); subgenital plate triangular (Fig. 15); female genitalia in three pairs of valves, of which the first is the most developed and widens toward apex, the second is the smallest and most sclerotized, and the third is more slender apically and slightly smaller in length than the first. Valvifers tapered and very small (Fig. 16).

Figures 11–16. 

Poeciloderrhis ferruginea (Brunner Von Wattenwyl, 1865) female. 11 habitus 12 head, ventral view 13 pronotum, dorsal view 14 supra-anal plate, dorsal view 15 subgenital plate, ventral view; 16 valves, dorsal view.

1 ♂ Brazil, Minas Gerais, Catas Altas, RPPN Serra da Caraça, collected at 1490 m; 3 to 7/XII/ 2013. J. P. Botero, A. Carelli & G. C. Queiroz cols; 1 ♀ Brazil, data the same as for male.

The male of P. ferruginea differs from the male in the size of the body, brown color of the vertex extending to the frons; enlarged supra-anal plate with indistinct median indentation, cerci poorly developed reaching apex of the plate; subgenital plate triangular; female genitalia with 3 pairs of valves; valvifers slender and small.

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.

Figures 17–26. 

Poeciloderrhis caracensis sp. n. male. 17 habitus 18 head, ventral view 19 pronotum, dorsal view 20 tergal modification in 1^st tergite and 2^nd21 supra-anal plate, dorsal view 22 subgenital plate, ventral view 23 left phallomere, dorsal view 24–25 median sclerite, dorsal view 26 right phallomere.

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.

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.

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.

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).

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.

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

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

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.

Figures 27–36. 

Poeciloderrhis minoris sp. n. male. 27 habitus 28 head, ventral view 29 pronotum, dorsal view 30 tergal modification in 1^st tergite and 2^nd31 supra-anal plate, dorsal view 32 subgenital plate, ventral view 33 left phallomere, dorsal view 34–35 median sclerite, dorsal view 36 right phallomere.

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.

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.

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.

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)

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

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 P. 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.

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.

Shiny light brown (Fig. 37). Head with vertex, interocular space between ocelli brown; other regions light brown. Maxillary palps with apical segment brown, cilia golden. Eye brown (Fig. 38). Pronotum light brown, with dark brown punctations (Fig. 39); tegmen light brown, with dark brown punctations. Legs light brown with spine, pulvilli, arolia and claws dark brown. Abdomen light brown.

Figures 37–46. 

Poeciloderrhis tijucana sp. n. male 37 habitus; 38 head, ventral view; 39 pronotum, dorsal view; 40 tergal modification in 1^st tergite and 2^nd; 41 supra-anal plate, dorsal view; 42 subgenital plate, ventral view; 43 left phallomere, dorsal view; 44–45 median sclerite, dorsal view; 46 right phallomere.

Total length: 33; total length of pronotum: 7.0; width of pronotum: 8.25; length of tegmen: 28; width of tegmen: 7.9.

Triangular with rounded edges, vertex slightly exposed; interocular space about 1.0 mm. Antennae long, slender, and tomentose, reaching beyond apex of cerci. Eyes positioned antero-laterally; maxillary palps with first and second segments reduced, the latter 0.46 mm, third segment 25% larger than fourth and 10% larger than fifth, which is a little more dilated and very tomentose.

Pronotum ample, pentagonal, convex, with curved margins, base bearing small median projection. Legs developed, femur I bearing 7 strong spines on anteroventral half, 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.

Tergal modification with two latero-apical humps converging toward thorax on first segment and small median hump on second tergite (Fig. 40). Supra-anal plate round with cerci reaching over apex of plate and short apical cleft (Fig. 41). Subgenital plate asymmetrical with apical cleft, with one long, filiform style and another inconspicuous one (Fig. 42). Genitalia with left phallomere with median structure shaped as sclerotized cleft (Fig. 43); median sclerite round apically and sclerotized on pre-apical region, with prepucium membranous bearing small spines (Fig. 44, 45). Right phallomere with curved apex and a small apical spine (Fig. 46).

Holotype ♂, Brazil, Rio de Janeiro, Tijuca. No date and collector information.

This species is named after the type locality, Tijuca, in Rio de Janeiro.

This species is close to P. ferruginea in size, differing in: the coloration of the tegmina being more intense in P. ferruginea, ventral view, the subgenital plate having the right style small but distinct in P. ferruginea, and in the median sclerite having a sharp apex in P. ferruginea.