Galiblatta williamsi Roth, 1968

Figures 4–6

Galiblatta williamsi Roth, 1968; Beier, 1971; Beccaloni, 2024.

Description. We are adding characters in addition to those described by Roth (1968).

Head (Fig. 4B). Head rounded, dark brown to reddish, with light yellow palpi and antenna. Vertex barely surpasses pronotum; frontally with rough surface; two pale yellow and bright spots near antennal socket. Eyes wide and long, having nearly half head length. Clypeus trapezoidal, with anterior base wider than posterior base. Labrum rectangular, with anterior margin straight, laterals slightly convex, posterior slightly concave. Palpi setose, gradually increasing in length and width from first to last segment; last segment ellipsoid. Antenna with more than 45 antennomeres, but incomplete at apex.

Thorax (Fig. 4A). Pronotum punctate, with well-defined margins; similar to a D-shape, but with convex lateral margin and straight posterior margin; with elevation from median to posterior part. Mesonotum rectangular, wider than long, dark brown, smooth. Metanotum equal.

Legs (Fig. 4B). Very shiny, dark brown to dark reddish from coxae to femora, gradually turning light brown at tibia towards apex of dorsal portion of tarsus; ventral portion of tarsus light yellow, whitish in some specimens. Length increasing from anterior to posterior leg. Coxae, trochanters and femora without spines on the lateral and ventral margins. All coxa ventrally bulged. All femora longer than wide, rectangular, with conspicuous large and striated sulcus on the anterior and posterior margins; dorso-apically with pair of spines. All tibia rectangular, slender. All tarsomeres slender, projecting ventrally; tarsal claw with pair of strong spines. Anterior coxa longer than wide. Anterior tibia with two anterodorsal spines, five posterodorsal and four apical; all spines close to each other. Mid tibia with five spines dorsoanteriorly, 10 spines at dorsoposterior margin and two dorso- and ventroapically. Mid tarsus with first tarsomere 1.7 times longer than second. Posterior tibia with five spines at dorsoanterior margin, 12 spines at dorsoposterior margin and two dorso- and ventroapically. Posterior tarsus with first tarsomere 2.1 times longer than second.

Abdomen. Tergites 1–8 shiny, pale yellow, rectangular, wider than long, with similar length. Tergite 9 the same, but slightly shorter and longer. Tergite 10 divided medially, semicordiform; setose; paraproct with posterior margin convex, anterior sinuous, dark brown pigmented (Fig. 5B). Cercus cylindrical, shorter than longest length measured on tergite 10, well segmented, with setae; last segment two times longer than previous one (Fig. 5B). Sternites punctate, dark brown. Sternites 1–3 not visible. Sternites 4–8 rectangular, wider than long, with all margins concave (Fig. 5A). Sternite 9 (subgenital plate) strongly asymmetrical, with latero-posterior portion strongly curving and increasing in length, posterior semi-trapezoidal convex, slightly exceeding styli (Fig. 5C). Styli asymmetrical, both slender, the right one being slightly shorter than the left one (Fig. 5C).

Geographical records. Brazil: Amazonas, Manaus, Tarumã and Ducke Reserve (Fig. 6).

Material examined. Brasil, AM, Manaus, Reserva Adolpho Ducke, 02º55’51”S, 59º58’59”W, 08-10.iii.2005, J.S Araújo col. (1♂) / Same data as previous, but 2º55’49,5”S, 59º58’31,8”W, active nocturnal collect, 10-14.v-2011, L-O 08, P 4500, Primary Forest, V.D. Tarli & V. Linard cols. (4♂) / Same data as before, but 24-27.v.2011, L-O 05, P1500 (3♂) / Brasil, AM, Manaus, INPA 1, Bosque da Ciência, 30.v.2011, H.D.D Rodrigues leg (1♂) .