Wuyjugu pizai Tavares

Tavares, Gustavo Costa, 2020, A new genus and species ofAgraeciini (Orthoptera: Tettigoniidae: Conocephalinae) from Amazon Rainforest, Zootaxa 4851 (1), pp. 163-170: 164-169

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Wuyjugu pizai Tavares

sp. nov.

Wuyjugu pizai Tavares   , sp. nov.


Type material. Holotype. Male. BRAZIL, Pará, Aveiro. Estrada da Petróbras.Cataueré - Área 3. Lat: 03°22’45.00”S, Long : 56°23’59.00”W; 26.IX.2009; Silva S. S. & J. Dias; Malaise. Registration number: MPEG ORT 16017606 View Materials . Deposit: MPEG. GoogleMaps  

Paratype. Female. BRAZIL, Pará, Santarém. Rio Tapajós. 08–20.VII.2013. P. F. Viana. Coleta manual. Deposit: CZDC-UEPA   .

Etymology. The specific epithet is in honor of Salvador Toledo Piza Jr., a Brazilian entomologist who described many Orthoptera   species from Brazil.

Diagnosis. This species is easily recognizable by the following combination of features: blackish line extending from the tip of the fastigium of vertex until the end of the tegmina ( Fig. 1B; D View FIGURE 1 ); fastigium of vertex triangular, conical, as wide as the scapus ( Fig. 2A; B View FIGURE 2 ); male cercus with the apex obliquely truncated, mid-dorsal portion bearing a conspicuous oblique inward spine, and the ventral portion with a subapical inward finger-like projection ( Fig. 3 View FIGURE 3 A–B); phallic complex completely membranous ( Fig. 3 View FIGURE 3 F–I); ovipositor very long (almost as long as the wings and more than 1.5 times longer than hind femur), slender and straight ovipositor ( Fig. 1 View FIGURE 1 C–D; 2H).

Description. Head. Tegument smooth; fastigium of vertex contiguous with fastigium of frons, not dentated bellow, triangular, conical, as wide as the scapus, projected obliquely ( Fig. 2A; B View FIGURE 2 ); scapus with lobe projected inward ( Fig. 2A View FIGURE 2 ); genae without lateral carinae ( Fig. 2A View FIGURE 2 ); mandibles as long as the distance between the antennal orbit and the clypeal suture ( Fig. 2A View FIGURE 2 ); medial ocellus conspicuous ( Fig. 2A View FIGURE 2 ).

Thorax. Pronotal disk with rounded keels only on the posterior zone, with a transversal sulcus, arched forward, weakly marking the limits of anterior and mid zones ( Fig. 2B View FIGURE 2 ). Anterior margin of pronotal disk slightly concave medially; posterior margin truncate ( Fig. 2B View FIGURE 2 ). Lateral lobes of pronotum longer than deep, with ventro-cephalic margin rounded; anterior angle rounded and widely obtuse; ventral margin concave; posterior angle straight, with a rounded border; ventro-caudal margin rounded; humeral sinus weakly impressed ( Fig. 1A; C View FIGURE 1 ); prosternum smooth; meso- and metasternum wider than long; meso- and metabasisternal lobes (msl and mtl, respectively) reduced, not produced hindward, mesobasisternal lobe with a very small protuberance on the posterior angle ( Fig. 2C View FIGURE 2 ).

Wings. Wings very long, greatly surpassing the apex of the abdomen ( Fig. 1 View FIGURE 1 A–D); tegmina straight, with anterior and posterior margins almost parallel (anterior margin slightly arched proximally) ( Fig. 2D View FIGURE 2 ); stridulatory apparatus with the left file bearing 95 teeth, maximum and minimum distances between teeth 0.02 and 0.04 mm, respectively ( Fig. 2G View FIGURE 2 ); left file damaged; vein CuPa of the apparatus absent in both wings, forming a large cell compound by h1 and the neck (cell h1+neck), which is longitudinally marked by a fold line ( Fig 2 View FIGURE 2 E–F); frame of left tegmina almost parallel to the posterior branch of CuPa (CuPaβ) ( Fig. 2F View FIGURE 2 ).

Abdomen. Male tenth tergite without conspicuous lobes or projections, only two broadly swollen areas just above the cercus ( Fig 3A View FIGURE 3 ); male cercus with the apex obliquely truncated and slightly bilobated, the mid-dorsal portion with a conspicuous oblique inward spine and ventral portion with a subapical inward finger-like projection ( Fig. 3 View FIGURE 3 A–B); subgenital plate triangular, apically incised, with cylindrical styli ( Fig. 3C View FIGURE 3 ); phallic complex completely membranous and compressed dorso-ventrally, with tiny ejaculatory vesicles (ejv), dorsal lobe (dl) smaller than ventral lobes (vl) ( Fig. 3 View FIGURE 3 F–I); ovipositor very long (almost as long as the wings), very thin, acuminated and completely straight ( Fig. 1C View FIGURE 1 ; 2H View FIGURE 2 ); female subgenital plate triangular in ventral view ( Fig. 3D View FIGURE 3 ); in lateral view, the lateral expansions of the plate fold dorsally in a straight angle forming a keel ( Fig. 3E View FIGURE 3 ). Probably the female specimen was previously immersed in an alcoholic solution, or it had recently molted when killed and preserved because the scleritis of the abdomen were strongly deformed. Even after rehydrated, the abdominal scleritis (including the subgenital plate) remain unchanged, so it is difficult to ensure if the original form is the same as seen in Fig. 3 View FIGURE 3 D–E.

Body size. Male. Total size: 45.2 mm; pronotum: 6.4 mm; width of pronotum: 5.5 mm; tegmina: 35.2; hind femur: 22.5 mm. Female. Total size: 57 mm; pronotum: 8.5 mm; width of pronotum: 7 mm; tegminia: 45.6 mm; hind femur: 28 mm; ovipositor: 43.8 mm.

Distribution. This species is known only to the type’s localities, two municipalities in the region known as Tapajós’ Valley, in the State of Pará, Brazil ( Fig. 4 View FIGURE 4 ).

Chromatic pattern. The only two known specimens probably lost part of the original coloration due to the preservation methods, but the male has a tegument yellowish with the tibiae and the veins of the tegmina reddish, and the female is mostly yellowish; on the tegmina, numerous brownish macules can be found; a blackish line extends dorsomedially from the tip of the fastigium of vertex until the end of the tegmina.


Museu Paraense Emilio Goeldi