Pepoapua Jesus & Pereira

Jesus, Fabiene Maria De, Pereira, Marcelo Ribeiro, Rodrigues, Geanne Carla Ripani & Sperber, Carlos Frankl, 2017, A new genus and species of Neotropical Nemobiinae (Insecta: Orthoptera: Grylloidea: Trigonidiidae: Nemobiinae), Zootaxa 4276 (1), pp. 96-106 : 99

Tribe NEMOBIINI Vickery, 1973

Pepoapua Jesus & Pereira n. gen. ( Figs. 2–5 )

Type species. Pepoapua cariacica Jesus & Pereira n. sp.

Etymology. “ Pepoapua ” (pronounced /pepəɑpuːɑ/), a compound of two words from the native South American Tupi-Guarani language. “ Pepó ” means wing and “apu’a” means short. Name given in allusion to the fact that the species here described present short wings.

Diagnosis. This new genus is characterized by the combination of the following characters: (i) males and females with morphologically similar tegmina ( Figs. 2 A, B, D; 3A and 5A, B, D); (ii) tegmina reduced, not reaching half of the second abdominal segment ( Fig. 2 A, B, D); (iii) dorsal field of the tegmina with parallel veins, without stridulatory vein or any specialized area for sound production ( Fig. 3 A); (iv) tibia of the first pair of legs without tympanum; (v) tibia of the third pair of legs with seven dorsal spurs, four inner and three outer ( Fig. 3 C), the proximo-dorsal inner spur reduced in size ( Fig. 3 C, D) and the disto-dorsal inner spur without glandular aspect ( Fig. 3 C); (vi) ovipositor with distal portion of the dorsal and ventral valves serrated ( Fig. 5 G–I); (vii) male genitalia without evident bristles or sensillas ( Fig. 4 ); (viii) pseudepiphallic median lobe presenting apical and ventral projections ( Fig. 4 A, C, D, F).

Description. Small size (Ẽ 6mm). Head as wide as pronotum ( Fig. 2 A), covered by long semi-erect dark brown bristles on fastigium, vertex and occiput; presence of thin bristles covering its entire length; black and prominent eyes ( Fig. 2 A-D); three ocelli present; 5-segmented maxillary palps, with the third being larger than the first and second, but smaller than the fourth and fifth palpomere ( Fig. 2 D); fifth palpomere with rounded apex ( Fig. 2 D). Pronotum wider than long, covered with long and fine bristles of dark brown coloration; anterior and posterior edges with a row of long dark brown bristles ( Fig. 2 A, B, D); lateral lobes as in Figure 2 D; tegmina reduced, with parallel veins and without specialization ( Figs. 2 A and 3A); posterior wings absent; tympanum absent; tibia of the first pair of legs with an apical spur; tibia of the second pair of legs with two apical spurs; tibia of the third pair of legs with seven dorsal spurs, being four inner and three outer ( Fig. 3 C), the proximo-dorsal inner spur reduced in size ( Fig. 3 D) and the disto-dorsal inner spur without glandular aspect (non-specialized) ( Fig. 3 C); presence of three inner and three outer apical spurs, with the median spur being larger in size on the outer face ( Fig. 3 F, "o.m") and the superior spur being larger in size on the inner face ( Fig. 3 G, "i.s"). Male genitalia: bristles or sensillas absent ( Fig. 4 ); pseudepiphallic median lobe presenting apical and ventral projections ( Fig. 4 A, C, D, F); endophallus divided in three sclerites, being one central and two laterals ( Fig. 4 A, D); rami fusioned with pseudepiphallus ( Fig. 4 A, C, D, F). Ovipositor flattened laterally, dorsal and ventral valves serrated in distal portions ( Fig. 5 G–I).

Figures

FIGURE 2. Pepoapua cariacica Jesus & Pereira n. sp., male holotype (habitus). A—dorsal view; B—lateral view; C—ventral view; D—head and pronotum, lateral view.

FIGURE 3. Pepoapua cariacica Jesus & Pereira n. sp., paratype (A – B) and male holotype (C – I). A— dorsal view of right tegmen; B—detail of right tegmen, dorsal view; C—dorsal spurs of hind tibia; D—detail of proximo-dorsal inner spur of tibia of the third pair of legs (non-specialized); E—ventro-apical inner and outer spurs of the tibia of the third pair of legs (arrows); F—outer apical spurs of the tibia of the third pair of legs: o. s: outer superior, o. m: outer median, o. v: outer ventral; G—apical inner spurs of the tibia of the third pair of legs: i. s: inner superior, i. m: inner median, i. v: inner ventral; H—supranal plate; Isubgenital plate.

FIGURE 4. Pepoapua cariacica Jesus & Pereira n. sp., genitalia of male paratype. A — Photograph in ventral view; B — Photograph in dorsal view; C — Photograph in lateral view; D — Illustration in ventral view; E — Illustration in dorsal view; F — Illustration in lateral view. Abbreviations: ps. a. l—pseudepiphallic apical lobe; ps. m. l—pseudepiphallic median lobe; ps. ppseudepiphallic parameres; ps. sc—pseudepiphallic sclerite; ec. f—ectophallic fold; v. v—ventral valve; end. sc—endophallic sclerite; a. g—accessory gland.

FIGURE 5. Pepoapua cariacica Jesus & Pereira n. sp., paratype female. A—habitus in dorsal view; B—habitus in lateral view; C—habitus ventral view; D—head and pronotum, in lateral view; E—supranal plate; F—subgenital plate; G—ovipositor, in lateral view; H—ovipositor, in ventral view; I—detail of distal portion of ovipositor.