Bolivaridora paraensis Cadena-Castañeda & Tavares, 2025

Cadena-Castañeda, Oscar J., Quintana-Arias, Ronald Fernando, Infante, Ivette Coque, Silva, Daniela Santos Martins & Tavares, Gustavo Costa, 2025, Studies on pygmy grasshoppers: On the current Metrodorinae sensu lato classification (Orthoptera: Tetrigidae) with emphasis on American and Malagasy taxa, Zootaxa 5597 (1), pp. 1-265 : 68-73

Bolivaridora paraensis Cadena-Castañeda & Tavares , sp. nov.

( Figs. 42–45 , Map 1)

Type material. Holotype. Male , BRAZIL, Pará , Melgaço, FLONA Caxiuanã [Floresta Nacional de Caxiuanã, i.e. Caxiuanã National Forest]—ECFPn [Estação Científica Ferreira Pena, i.e. Ferreira Pena Scientific Station]; ESECAFLOR; 1°43’35”S, 51°26’36”W [45 m]; VII.2011; Pitfall; D.A. Cunha leg. ( MPEG) . Paratypes. 2 females, same data as the holotype but collected in III.2012 ( MPEG) . 1 female. BRAZIL, Pará, Melgaço, FLONA Caxiuanã ; Team 5; 01°43’21.6”S, 51°25’51.2”W [48 m]; 25-28.IX.2006; Winkler; J. A. P. Barreiros leg. 1 female ( MPEG). Same locality as preceding, but collected in the site Puraquequara; 01°44’35.1”S, 51°28’22.7”W [13 m]; 16- 21.XI.2005; Pitfall; J. A. P. Barreiros leg. ( MPEG) .

Description. Male. In addition to the characters of the genus. Small size (7 mm) ( Figs. 42 , 44 ). Coloration. Predominantly chocolate brown with black and ocher spots ( Fig. 42 ). Head dark brown with abundant black spots ( Fig. 43A ), and all antennal segments ocher ( Figs. 43B, C ). Clypeus brown with black spots, labrum ocher with a dark transverse stripe on the proximal margin, and lateral margins outlined in brown; palpi ocher with diffuse grayish-brown spots ( Fig. 43A ). Fore femur with the ventral half ocher and the dorsal half with dark brown spots ( Fig. 43D ); mid-femur covered by dark brown spots ( Fig. 43E ); fore and mid tibiae ocher with the dorsal edge blurred grayish-brown; hind femur brown, with the ventral external area black, and chevrons slightly outlined by black and alternating ocher ( Fig. 42A ); hind tibia ocher with blurred blackish spots, mainly on the outer face; all tarsomeres light brown, with the distal section of the last tarsomere dark brown. Head taller than wide, eyes occupying a third of the cephalic capsule; space between the eyes as wide as the width of one of the eyes ( Fig. 43A ); medial carina moderately protruding in the middle of the eyes in lateral view, protruding about a fifth of the length of the eyes, although it projects, it slightly surpasses the eyes in lateral view ( Fig. 43B ); scutellum narrow, slightly widened; fascial carinae little divergent and almost parallel ( Fig. 43A ), protruding in lateral view and rounded; lateral ocelli located near the fork of the frontal costa ( Fig. 43A ). Antennae with 14 unmodified segments ( Figs. 43B, C ). Thorax. Anterior margin of the pronotum almost straight, slightly produced in the middle; prozonal carinae developed ( Fig. 43C ), pronotal apex acuminated in dorsal and lateral view, slightly downcurved in lateral view ( Fig. 42B ). Median carina sub-elevated; internal lateral carinae slightly curved in lateral view; external lateral carinae finely denticulated and curved ( Fig. 42B ); infrascapular area moderately widened ( Fig. 42A ); lower margin of lateral lobes subtriangular-shaped and rounded; posterior margin of lateral lobe rounded, but not produced as a rounded prolongation as others species ( Fig. 43C ). Legs. Fore and mid femora rectangular, dorsal and ventral margins slightly wavy ( Figs. 43D, E ); hind femur with the antegenicular tooth poorly developed and genicular tooth moderately developed ( Fig. 42A ); hind tibia armed with three or four small spines on each dorsal margin ( Fig. 42B ). Abdomen unmodified. Tenth tergite constricted; cerci conical tapering towards the distal section ( Fig. 43F ). Penultimate sternite mid-sized, 1.5 times longer than subgenital plate, and slightly upcurved ( Fig. 43G ); subgenital plate short, cupuliform, upcurved ( Fig. 43H ), and apex with a mid-notch, most conspicuous compared to the other congeners ( Fig. 43G ).

Female. Similar to the male in shape and coloration ( Fig. 44 ), differing in having 15 antennal segments ( Figs. 45A, B ), the margins of the fore and mid femora are almost straight, and very slightly undulating ( Figs. 45D, E ). It also differs in the ambisexual characters: Tenth tergite divided by a lanceolate plate that extends and connects with the epiproct ( Fig. 45F ). Epiproct triangular, divided into three plates: two lateral quadrangular plates on each side, and a distal subtriangular plate with rounded apex ( Fig. 45F ). Cerci conical tapering towards the distal section, diverging to the sides ( Fig. 45F ). Ovipositor valves with normal development and covered with bristles ( Fig. 45G ). Subgenital plate rectangular, wider than long, with posterior margin straight and a subtriangular extension in the middle ( Fig. 45H ).

Measurements (in mm) male / female. CFP: 7.1 / 7.5–8.2. PL: 6.2 / 5.3–6.8. PLB: 3.2 / 3.5. FF: 1.5 / 1.5–1.8. FL: 1.2 / 1.3–1.5. MFL: 1.5 / 1.8–1.9. MTL: 1.3 / 1.6–1.7. HL: 4.1 / 4.1–4.8. HW: 1.8 / 1.8–1.9. HTL: 3.2 / 3.0–3.5.

Comparison. B. paraensis sp. nov. differs from the majority of congeners in the lateral lobes of the pronotum subtriangular with a rounded lower margin ( Fig. 43C ), and also the hind femur has poorly developed antegenicular and genicular teeth ( Fig. 42A ). The species most similar to B. paraensis sp. nov. is B. tani sp. nov., which differs in the moderately produced medial carina of the vertex, almost covered by the eye in lateral view ( Fig. 43B ), the sub-elevated median carina of the pronotum, and the slightly downcurved apex of the pronotum ( Figs. 42A , 44A ). B. tani sp. nov. has the medial carina of vertex more pronounced, with a more pronounced fastigium ( Fig. 47B ), the pronotal disc with the median carina moderately elevated, and the apex of the pronotum slightly upcurved (46A, 48A).

Remarks. One of the paratype females presents lighter shades, with an overall light brown coloration, but maintaining the same pattern as the other specimens.

Etymology. The name of this species refers to the state of Pará, Brazil, where it is recorded.

Figures

FIGURE 42. Bolivaridora paraensis Cadena-Castañeda & Tavares sp. nov. Male holotype habitus. A. Lateral and B. Dorsal views.

FIGURE 43. Bolivaridora paraensis Cadena-Castañeda & Tavares sp. nov. Male holotype. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur. F–H. Terminalia in lateral, axial and ventral views respectively.

FIGURE 44. Bolivaridora paraensis Cadena-Castañeda & Tavares sp. nov. Female paratype habitus. A. Lateral and B. Dorsal views.

FIGURE 45. Bolivaridora paraensis Cadena-Castañeda & Tavares sp. nov. Female paratype. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur. F–H. Terminalia in dorsal, lateral and ventral views respectively.

FIGURE 47. Bolivaridora tani Cadena-Castañeda & Tavares sp. nov. Male holotype. A. Frons. B–C. Head and thorax in lateral and dorsal views respectively. D. Fore femur. E. Mid femur. F–H. Terminalia in lateral, dorsal and axial views respectively.