Anapolisia igapo Mendes & Rafael 2025, sp. nov.
Creators: name: Mendes, Diego Matheus De Mello
name: Rafael, José Albertino
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Anapolisia
Anapolisia igapo

description: Anapolisia igapo Mendes & Rafael sp. nov.
Figures 37–45
Diagnosis. Vein MA with four main branches reaching wing margin (Fig. 38). Mesobasisternum anteriorly convex; lateral lobes anterolaterally and laterally convex, posteriorly straight, forming a posterolateral blunt tip (Fig. 37E). Metabasisternum anteriorly straight with two convex lateral projection; lateral lobes anterolaterally convex, laterally straight, posteriorly convex, posterolaterally forming an angle of 90° (Fig. 37E). Apex of cercus with triangular projection and large lateral spine, with a dark brown color (Fig. 37K).
Description. Holotype Male.
Thorax. Mesobasisternum triangular, anteriorly convex; lateral lobes anterolaterally and laterally convex, posteriorly straight, forming a posterolateral blunt tip (Fig. 37E). Metabasisternum triangular, anteriorly straight with two convex lateral projection; lateral lobes anterolaterally convex, laterally straight, posteriorly convex, posterolaterally forming an angle of 90° (Fig. 37E).
Wings. Vein MA with four main branches reaching wing margin (Fig. 38). Left stridulatory file with curved basal half and straight apical half; teeth large and wide, with basal teeth more distant from each other (Fig. 39A). Total file length of 2.8 mm, greater vein width of 0.4 mm and a total of 47 teeth. Right stridulatory with curved basal half and straight apical half (Fig. 39B). Total length file of 2.5 mm, widest vein of 0.2 mm and total of 49 teeth.
Legs. Hind femur with expanded region equivalent to 2/3 of the total femur length (Fig. 37H).
Abdomen. Cercus curved inwards, with the apex not expanded (Figs. 37I–K). Apex of cercus with triangular projection and large lateral spine, with a dark brown color (Fig. 37K). Stylus long and rectangular (Fig. 37I).
Internal male genitalia. Ejaculatory vesicles reniform (Figs. 40A–D). Upper folds of ventral lobe small, triangular and not connected (Figs. 40A–B). Titillator process large, bilobate and triangular (Figs. 40A–D). Lower folds of ventral lobe large, posteriorly convex and exceeding the dorsal lobe (Figs. 40A–B). Dorsal lobes anteriorly straight, laterally and posteriorly convex (Figs. 40A–D). Dorsal folds elongated, narrow and with asymmetrical (Figs. 40C–D).
Coloration. Described based on photos of live specimens (Fig. 42A). General color of the body dark green, with light green spots. Eyes dark green with whitish spots. Tegmina with Cu and M veins marginally with small dark green spots; region of Radial branches with several small rounded yellow spots; margins of tegmina and apex of the membranous wing with a narrow yellow band. Abdomen light green with white spots.
Female: Morphologically similar to the male, except by the following characteristics (Figs. 41A–K):
Thorax. Mesobasisternum triangular, anteriorly concave; lateral lobes anterolaterally convex, laterally straight and posteriorly slightly convex, forming a posterolateral acuminate tip (Fig. 41E). Metabasisternum triangular, anteriorly straight; lateral lobes anterolaterally convex, laterally straight and posteriorly convex, posterolaterally forming an angle of 90° (Fig. 41E).
Wings. Unaltered anal veins for sound production (Fig. 41A).
Abdomen. Cercus slightly curved, apex acuminate (Figs. 41H–J). Subgenital plate triangular, apex rounded and stylus absent (Fig. 41H). Ovipositor curved; apex of ventral valve surpassing the apex of dorsal valve; apical region of dorsal and ventral valve with rectangular teeth (Fig. 41J).
Coloration. Described based on photos of live specimens (Fig. 42B). General color of the body light green. Eyes dark green with whitish spots. Apical half of tegmina and apex of membranous wing with yellow edges. Tegmina with Cu and M veins marginally with small dark green spots and several small rounded yellow spots; margins of tegmina and apex of the membranous wing with a narrow yellow band. Abdomen whitish. Ovipositor with whitish base and light green apex.
Etymology. The epithet is in apposition, igapó comes from the Brazilian indigenous language Nheengatu and means “river of roots”, this being the popular name given to the environment of seasonally flooded Amazonian forests in which the specimens were found.
Distribution. Brazil: Amazonas (Fig. 45).
Type material. Holotype ♂. BRASIL, Amazonas, Novo Airão, Rio Negro, Comunidade São Thomé, 03°08'44.00"S – 60°30'5.98"W, floresta de igapó, 02.ii.2015, coleta manual, D.M.M. Mendes & P.F. Viana leg. (INPA); Paratypes: Idem (1♂ and 1♀ INPA); idem, Rio Nhamundá, Cuipiranga, 01°53’58”S – 57°02’59”W, 22 m, 20–23.v.2008, armadilha luminosa em barco, J.A. Rafael leg. (3♂ INPA e 1♂ MZSP); idem, Ipixuna, Rio Liberdade, Estirão da Preta, 07°21’46.7”S – 71°52’07.1”W, 11–15.v.2011, armadilha luminosa, R. Andreazze, D.M. Takiya leg. (1♂ INPA); idem, Resex Unini, Rio Unini, Manapana, 01°53’18”S – 62°27’46”W, 11–12.vii.2004, lençol luz mista de mércurio BLB, A. Silva & L. Aquino leg. (1♂ MZSP); idem, Alvarães, Rio Solimões, ix.2017, coleta manual em vegetação arbustiva de em área alagada, D.M.M. Mendes & J. Oliveira leg. (1♀ INPA).
Measurements (mm). Holotype: (♂): TL: 23,2; TegL: 42; TegH: 13,8; WF: 3,9; PL: 6; PH: 6,3; FF: 6; FT: 7,9; MF: 8; MT: 8,1; HF: 15,1; HT: 17,9; Lplac: 2; LC: 3.
Paratype (♂): TL: 23,3–22,8; TegL: 42,2–41,4; TegH: 13,8–13,1; WF: 4–3,3; PL: 5,9–5,1; PH: 6,3–5,9; FF: 6,5–6,1; FT: 7,6–7,3; MF: 8,1–7,7; MT: 8,3–8; HF: 16–15,9; HT: 18–17,7; Lplac: 2,2–2,1; LC: 3,3–3.
Paratypes (♀): TL: 23,9–23,7; TegL: 44–43,8; TegH: 14,1–13,6; WF: 3,9–3,5; PL: 6,1–5,8; PH: 6,2–6; FF: 7,6– 7,3; FT: 7,7–7,5; MF: 8,1–7,5; MT: 8,5–8,3; HF: 16–15,4; HT: 18,8–18,2; Lplac: 2–1,8; LC: 2,2–2; LO: 4,5–4,4.
Observation of behavior. A. igapo sp. nov. is one of the most fascinating species of the genus, as it specializes in seasonally flooded forest environments of várzea (bathed by whitewater rivers) and igapó (bathed by blackwater rivers) (Fig. 43A). The specimens were collected in Ipixuna, Negro, Nhamundá and Solimões rivers, occurring in area of endemism of the Guianas, Imeri and Inambari. Collections and observations were carried out at night in boats during the flood period (about 10m deep). It was observed that the specimens were between 20 cm to 200 cm from the surface of the water, usually at the tips of the branches of the plants (Fig. 43B). In Reserva de Desenvolvimento Sustentável Amanã, during May 2024, a female was observed laying eggs on a leaf about 15 cm from the surface of the water (Fig. 44A–B).
description: Published as part of Mendes, Diego Matheus De Mello & Rafael, José Albertino, 2025, Review of Anapolisia Piza, 1980 and Tropicophyllum Koçak & Kemal, 2008 stat. rev. (Orthoptera: Tettigoniidae: Phaneropterinae: Microcentrini), pp. 1-184 in Zootaxa 5564 (1) on pages 37-44, DOI: 10.11646/zootaxa.5564.1.1, http://zenodo.org/record/14612164