Acropsis solimoesensis Mendes & Rafael, 2020,

Mendes, Diego Matheus De Mello & Rafael, José Albertino, 2020, RedescriptionofAcropsisGrant, 1958 (Orthoptera: Tettigoniidae: Phaneropterinae Microcentrini) and description of new species from Brazilian and Colombian Amazon Rainforest, Zootaxa 4779 (2), pp. 230-244: 237-240

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Acropsis solimoesensis Mendes & Rafael, 2020


Acropsis solimoesensis Mendes & Rafael, 2020 

Figures 7–9View FIGURE 7View FIGURE 8View FIGURE 9 and 13View FIGURE 13

Diagnosis. Tegmina with an pentagonal cell present between veins MP and CuA ( Fig. 8View FIGURE 8). Cercus apex rounded, with a hook-like spine ( Fig. 7KView FIGURE 7). Lateral lobes of mesosternum triangular, narrowed, parallel, with rhomboid apex Description. Male.

Head. Rugose. Fastigium dorsally short, gently bilobed. Vertex trapezoidal, frontally bilobed.

Thorax. Dorsal pronotal disc rugose with slight linear depression ( Figs. 7View FIGURE 7 C–D). Dorsolateral and furcal sutures deeply marked ( Fig. 7CView FIGURE 7). Furcal sutures connected. Meso- and metasternum laterally compressed ( Fig. 7CView FIGURE 7). Mesosternum anteriorly rhomboid. Lateral lobes of mesosternum with apex rhomboid ( Fig. 7EView FIGURE 7). Metasternum diamondshaped ( Fig. 7EView FIGURE 7). Lateral lobes of metasternum curved with rounded apex ( Fig. 7EView FIGURE 7).

Wings. A pentagonal cell present between veins MP and CuA ( Fig. 8View FIGURE 8). Vein CuA with five bifid branches with bifurcations at apex ( Fig. 8View FIGURE 8). Left stridulatory with basal teeth short, gradually increasing in length towards median region ( Fig. 9AView FIGURE 9). Median teeth slender, close to each other. Left stridulatory file with 78 teeth, length of 3.2 mm and greatest width of the vein of 0.4 mm ( Fig. 9AView FIGURE 9). Left stridulatory sinuous, with convex base, median region nearly straight, distally concave ( Fig. 9BView FIGURE 9). Basal and distal teeth short, widened. Median teeth slender, close to each other ( Fig. 9AView FIGURE 9). Right stridulatory file with 67 teeth, length of 2.3 mm and greatest width of the vein of 0.1 mm ( Fig. 9BView FIGURE 9).

Legs. Mid tibia slightly widened basally, with three ventral spines ( Fig. 7GView FIGURE 7). Hind femur with six ventral spines, wider basally ( Fig. 7HView FIGURE 7).

Abdomen. Cercus inward curved; apex rounded with small hook-shaped spine ( Fig. 7HView FIGURE 7). Subgenital plate trapezoidal, with length not reaching half of cerci length ( Fig. 7IView FIGURE 7). Apex of subgenital plate inconspicuously emarginated ( Figs. 7View FIGURE 7 I–J). Stylus rectangular and short ( Figs. 7View FIGURE 7 I–J). Cercus and subgenital plate covered with numerous bristles ( Figs. 7View FIGURE 7 I–K).

Internal male genitalia. Not examined.

Coloration. Based on photos of preserved specimen ( Fig. 7View FIGURE 7). Generally yellowish-brown, with some light green tegmina parts. Compound eyes brown. Sternites, cercus, subgenital plate and stylus yellow.

Female. Unknown.

Etymology. The species is named after the Solimões river, the main river in the species locality.

Type material. Holotype ♂: BRASIL, Amazonas , Coari, Rio Urucu, RUC-36, 04°55’53”S— 65°18’13”W, 25.ii—10.iii.1995, armadilha luminosa lençol, P. Bührnheim leg. (1♂ INPA).GoogleMaps 

Measurements (mm). Holotype (♂): TL: 25,4; TegL: 34,7; TegH: 14,5; WF: 3,4; PL: 5,9; FF: 5; FT: 5,7; MF: 6,6; MT: 7; HF: 13,3; HT: 13,5; Lplac: 3,4; LC: 3,3.

Geographical records. Brazil: Amazonas ( Fig. 13View FIGURE 13).

Habitat. The specimen was collected in a terra firme upland forest. It has the smallest body size among Acropsis  species and is the only one restricted to the Central Amazon area.


Instituto Nacional de Pesquisas da Amazonia