Adapantus pragerorum, Naskrecki, Piotr, 2008

Naskrecki, Piotr, 2008, Sylvan katydids (Orthoptera: Tettigoniidae: Pseudophyllinae) of the Guinean Forests of West Africa hotspot: an overview and descriptions of new species, Zootaxa 1712, pp. 1-41 : 11-12

publication ID	https://doi.org/ 10.5281/zenodo.180953
DOI	https://doi.org/10.5281/zenodo.6230797
persistent identifier	https://treatment.plazi.org/id/425A701A-D96B-A712-FF54-838A4322FC06
treatment provided by	Plazi
scientific name	Adapantus pragerorum
status	sp. nov.

Treatment

21. Adapantus pragerorum sp. n.

( Figs. 3 View FIGURE 3 B, E, G, J; 8E–F; 12B–C)

Type locality. — GHANA: Eastern Region, Ajenjua Bepo Forest Reserve (6°22'2.3''N, 1°1'58''W), 300–320 m, 26–30.viii.2006, leg. P. Naskrecki, V. Awotwe-Pratt and M. Bakowski—male holotype ( ANSP)

Differential diagnosis. — This species differs from its congeners in the distinctly reduced tegmina and hind wings ( A. transmarinus is reported to have somewhat shortened wings, but not to the same extent; it also differs from the new species in the dimensions of the stridulatory apparatus, and coloration [based on the description in Beier 1962; the type specimens of this species appear to be lost], and the male cercus of A. ghanaiensis is shaped differently than that of any congeneric species.

General. — Body of medium size, robust.

Head. — Antennae about twice as long as body; antennal scapus with small apical spine. Fastigium of vertex triangular, reaching apex of antennal sockets. Frons flat; fastigium of vertex grooved dorsally.

Thorax. — Humeral sinus of pronotum absent; lateral lobe wider than high; metazona flat; posterior edge of metazona straight; pronotum surface moderately granulate. Prosternum armed with two, widely spaced short spines.

Legs. — Genicular lobes of front femur unarmed; genicular lobes of hind femur armed on both inner and outer sides; mid tibia unarmed dorsally.

Wings. — Tegmen surpassing middle of abdomen but not reaching its apex (fig. 12C); vein Rs branching off usually in apical third of tegmen; veins Sc and R converging towards apex of tegmen; left stridulatory area coriaceous, without mirror (fig. 8E); right stridulatory area with small, circular mirror (fig. 8F). Stridulatory file weakly bent, flat, with 94–105 teeth (n=3), 1.28–1.41 mm long, 0.12–0.15 mm wide (fig. 3J). Hind wing slightly shorter than tegmen.

Abdomen. — Cercus unarmed, bent in apical third; apex tapering (fig. 3B). Styli cylindrical, about 5 times as long as wide; subgenital plate with small, triangular apical incision (fig. 3E). Supraanal plate about as wide as long, broadly triangular. Female subgenital plate broadly triangular, with small apical incision.

Ovipositor. — Apex with upper valvula minutely dentate, lower valvula smooth; pointed, dorsal edge of upper valvula straight; ovipositor slightly curved, about as long as hind femur (ratio hind femur/ovipositor 0.97–1.14) (fig. 3G).

Coloration. — Coloration light brown to dark brown, uniform; face light brown, without darker markings; hind wing hyaline; occiput without markings; tegmen without markings (figs. 12B–C).

Measurements (7 males, 8 females). — body w/wings: male 25.5–31 (28.1±2.4), female 33–38 (36.3±1.6); body w/o wings: female 25–30 (26.9±1.5); pronotum: male 5–6 (5.2±.4), female 5.5–6 (5.9±.2); tegmen: male 10–17.5 (13.5±2.2), female 13–16 (13.8±1); hind femur: male 13.2–16.5 (14.5±1.1), female 15–17 (15.7±.7); ovipositor: female 14–16.5 (15.2±1) mm.

Material examined. — Ghana: Eastern Region, Ajenjua Bepo Forest Reserve, elev. 300–320 m (6°22'2.3''N, 1°1'58''W), 26–30.viii.2006, leg. P. Naskrecki, V. Awotwe-Pratt and M. Bakowski (Camp 1)— 1 male (holotype) ( ANSP); Atewa Range, Asiakwa (North), elev. 769 m (6°16'16.4''N, 0°33'52.8''W), 16– 24.vi.2006, leg. P. Naskrecki (Camp 3)— 2 females (2 paratypes) ( ANSP); Asiakwa (South), elev. 690 m (6°15'44.3''N, 0°33'18.8''W), 11–16.vi.2006, leg. P. Naskrecki (Camp 2)— 3 females, 3 males (6 paratypes) ( ANSP); Atiwiredu, elev. 795 m (6°12'24.7''N, 0°34'37.2''W), 6–10.vi.2006, leg. P. Naskrecki (Camp 1)— 5 females, 3 males (paratypes), 1 male nymph ( ANSP, MCZ).

Etymology. — This species is named in honor of Joanne and Paul Prager, for their support of conservation of invertebrate biodiversity.

Natural history. — A. pragerorum appears to be common on low vegetation of undisturbed lowland forests of Ghana. Adults of this species were frequently observed after dark feeding on vegetation and organic detritus accumulated on broad leaves.