Phlugiola longipedes sp. nov.

Figures 1–6, 12–14

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:495793

Diagnosis. Eyes in life with a C-shaped dark red spot, interleaved medially and posteriorly by two white stripes (Fig. 4 A). Wings undeveloped. Cerci with numerous small black socket setae, apex inward curved, acuminate in dorsal view (Figs 2 H–I). Subgenital plate ending at level of cercal apex. Styli straight, parallel-sided, with external margin of the apex slightly expanded, rounded in dorsal view (Fig. 2 H–I). Internal male genitalia without sclerites on titillator (Fig. 3 A–D). Lower folds in ventral lobe with numerous small bristles. (Fig. 3 A–B).

Type material. Holotype ♂: BRASIL, Amazonas, Tefé, Estrada da EMADE, km 21, Comunidade Bom Jesus, 06°07’29”S / 68°02’41”W, 29–30.vii.2016, coleta manual, D.M.M. Mendes & J.C. Oliveira leg. (INPA) ; Paratypes: same data of holotype (1♂ e 1♀ - INPA); idem, 24.ix.2016 (1♂ - MZUSP); idem, 29–30.ix.2016 (9♂ e 5♀ - INPA).

Distribution. Brazil: Amazonas (Fig. 14).

Etymology. From Latin longus (=long) and pedes (=foot) and refers to their long hind legs.

Description. Male. Head. Compound eyes rounded in life with a C-shaped dark red spot, interleaved dorsally, medially and ventrally by white stripes. (Figs. 2 A, 4A–B); dark brown to black in dead specimens. Vertex straight without projections (Fig. 2 B). Frons, clypeus and labrum smooth. Frons mid-longitudinally 2X higher than clypeus (Fig. 2 B).

Thorax. Pronotum dorsally straight without carinae (Fig. 2 A). Lateral lobes smooth, antero-lateral ventral margin concave, posteriorly almost straight (Fig. 2 A). Pronotum dorsal length about 2.7X longer than pronotum depth. Mesobasisternum trapezoidal, posteriorly with triangular concavity; metabasisternum hexagonal, with posterior margin bilobated, having small apical triangular concavity (Fig. 2 E).

Wings. Wings undeveloped, very short (Fig. 2 G).

Legs. Fore femur with straight dorsal and ventral margins; with four small antero-ventral and one posteroventral spines. (Fig. 2 C). Fore tibia with open tympanum; tympanic region about 4.5 times shorter than the fore tibia (Fig. 2 C); with five antero-ventral spines slightly curved apically, being the first three spines longer than remaining (Fig. 2 C). Mid femur clavate, without spines, with basal third 2X wider than apical third (Fig. 2 D). Mid tibia with median portion slightly wider ventrally, the wider area 1.5X wider than the apex width; two ventral spines placed at median third (Fig. 2 D). Hind femur inversely clavated; base about five times wider than apex, without spines. Hind tibia nearly straight and parallel sided; ventral margin without spines; dorsal margin with short spines from base to apex (Fig. 2 F). All legs covered with small black bristles (Figs. 2 C, 2D, 2F).

Abdomen. Cercus and subgenital plate covered with bristles, those at the base and median region of the cercus longer (Fig. 2 H–J). Cercus curved inwards in dorsal view, slightly decurved in lateral view (Fig. 2 J), with numerous black, rounded small socket- bristles, apex acuminate. Subgenital plate antero-medially slightly rounded, posteriorly narrowing abruptly to apex, in such way that the subgenital plate resembles a tennis racquet in ventral view (Fig. 2 I). Subgenital plate straight in lateral view (Fig. 2 J). Styli long, almost straight, parallel sided, articulated at base, slightly curved upwards in lateral view, with apex broadened and blunt in dorsal view (Fig. 2 H– J). Stylus as long as cercus.

Internal male genitalia: Ejaculatory vesicles sub-ovalated (Fig. 3 A–D). Upper folds of ventral lobe triangular, not connected to each other and shorter than ejaculatory vesicle median width (Fig. 3 A–B). Lower folds of ventral lobe trilobate, posteriorly rounded, surpassing the posterior margin of dorsal lobe, with several short bristles (Fig. 3 A–B). Dorsal lobes short and asymmetrical (Fig. 3 A–D), asymmetrical, wrinkled, with numerous small protuberances throughout its length (Fig. 3 C–D).

Coloration. Coloration description based on photos of live specimens (Fig. 4 A–B). Body light green alternated with dark green tone areas. Antenna black with some white segments. Eyes with a C-shaped dark red spot, interleaved medially and posteriorly by two white stripes. Dorsal region of body with longitudinal medial dark brown stripe from vertex to last abdominal segment; this stripe wider at posterior margin of pronotum. Pronotum with latero-longitudinal brown stripe, somewhat inconspicuous, anteriorly dimmed. The space between dorsal and lateral stripes of pronotum anteriorly dark green and posteriorly yellowish brown. Femur light green from base to median portion, gradually turning brown towards apex. All tibiae brown, with spines with apex black. Abdominal segments light green with the longitudinal medial stripe widened posteriorly in each segment. Cercus, subgenital plate and stylus light green. Apex of cercus and stylus blackened.

Female. General. Morphology essentially equal to male (Fig. 5 A–G), except for the following characteristics:

Wings. Tegmen reduced, posteriorly rounded, with venation undeveloped (Fig. 5 C). Tegmen coloration whitish-brown, posterior margin with a black falsiform spot.

Abdomen. Cercus conical, slightly curved inwards with acuminate apex, with numerous bristles, those at base larger; slightly longer than ovipositor basal expansion (Fig. 5 E). Subgenital plate triangular with rounded blunt apex (Fig. 5 F). Ovipositor curved, with base expanded and moderately narrowing to beginning of the distal region, where it ends in acuminated tip (Fig. 5 G). Ovipositor 3X longer than subgenital plate. Dorsal and ventral valves with slightly serrated margins in apical portion (Fig. 5 G).

Coloration. Essentially equal to male (Fig. 4 C).

Nymph. Very similar to adult, with differences only in coloration and in terminalia morphology (Fig. 6). General color reddish brown with black dorsal spot at posterior margin of pronotal disk. Borders of wing buds black. Base of hind femur with two black spots separated by light brown spot. Base of abdomen with two white dorsal spots. Eye coloration equal to that of adults.

Measurements (mm). Holotype: TL: 12,4; WF: 2; PL: 4,9; FF: 4,1; LF: 4,5; MF: 3,8; MT: 4,3; HF: 11,5; HT: 12; Lsp: 3,3; LC: 2,2. Paratypes: TL: 12–12,8 / female 13,3; WF: 2–2,3 / female; PL: 4,5–4,9 / female 5–5,2; FF: 3,6–4 / female 3,9–4,1; LF: 4,5–5 / female 4,4–4,8; MF: 3,9–4,9 / female 4–4,7; MT: 4,2–4,4 / female 4,3–4,5; HF: 11–11,6 / female 11,4–11,6; HT: 11,6–11,9 / female; Lsp: 3–3,3 / female 2,3–2,5; LC: 2,3–2,4 / female 2–2,6; OL: 3–4,3.