Emsleyfolium unilobatum Gorochov, 2025

Emsleyfolium unilobatum Gorochov View in CoL sp. nov.

( Figs 83–86 View Figs 83–105 , 114–116 View Figs 106–117 , 139–142 View Figs 126–144 , 145–148 View Figs 145–152 )

Etymology. This name consists of the Latin prefix “uni-” (one) and the Latin word “lobatum” (with lobe or lobes) due to the presence of one process (lobe) on the last male tergite.

Material. Holotype – male, PERU: Junin Department, Satipo Prov., Pampa Hermosa Distr. , environs of waterfall “Cristal” near Pacasmayo Vill., 1400–1600 m, primary forest, on leaf of small tree at night, 11 º 22'02" S, 74 º 41'55" W, 8–13 December 2018, A. Gorochov ( ZIN) GoogleMaps . Paratypes: 1 male, same country, “ Ucayali, 11 km on 230 º from Puerto Bermudes ”, 10 º 29.9' S, 75 º 03.1' W, 713 m, 10–12 March 2011, V GoogleMaps . Sinyaev, A. Poleschuk ( ZIN) ; 3 males, 1 female, same country, Ucayali Department , “Atalaya Distr., Pitza”, 10 º 54.780' S, 73 º 51.054' W, February 2021, possibly V GoogleMaps . Izerskyy ( ZIN).

Description. Male (holotype). General appearance almost as in E. diasae but with following characteristic features: coloration yellowish (light green in lifetime condition) with slightly lighter (almost yellowish-whitish) most part of head and curved stripe along anteroventral edge of each pronotal lateral lobe, light brown eyes and numerous very thin rings on proximal portion of antennal flagellum (more distal part of this flagellum also light brown), whitish venation of hind wings (except for their yellowish or greenish apical parts) and of most part of dorsal field in right tegmen, transparent membrane of mirror in this field and majority membranes in hind wings, and light greyish brown areas on all tarsi; upper rostral tubercle high and rather wide but not separated from dorsal part of epicranium and with roundly truncat- ed anterior part narrowing downwards and contacting with small (tubercle-like) lower rostral tubercle (distance between antennal cavities almost equal to width of scape; Figs 114, 115 View Figs 106–117 ); pronotum without dorsolateral keels but with distinct carinae along lateral edges of disc (these carinae slightly rounded in vertically-transversely section and with traces of rather numerous denticles consisting of slight but distinct transverse wrinkles), and with characteristic shape of lateral lobes (above-mentioned lighter stripe on each of these lobes separated from its darker part by oblique concavity looking almost as slight groove; Figs 115, 116 View Figs 106–117 ); tegmina as in Figs 145–147 View Figs 145–152 , and stridulatory vein of left tegmen approximately 5 mm in length and with nearby 155 ventral teeth ( Fig. 148 View Figs 145–152 ); hind wings barely protruding beyond tegminal apices; fore leg with almost slite-like both tympana and without dorsal spines on tibia near them ( Figs 83, 84 View Figs 83–105 ); middle and hind legs with distinctly widened tibiae in their proximal halves ( Figs 85, 86 View Figs 83–105 ); abdominal tergites with only one posteromedian process on last tergite (other processes or lobules on abdominal tergites absent; Fig. 140 View Figs 126–144 ) which rather wide and dorsally concave in anterior (proximal) half as well as clearly narrowing to vertically lamellar apex in posterior (distal) half (lamellar apical part of this process somewhat curved downwards and with rounded apex in profile); genital plate almost as long as cercus, distinctly narrowing to rather deeply notched apex lacking styli ( Fig. 141 View Figs 126–144 ); rest parts of abdominal apex as in Figs 140, 141 View Figs 126–144 .

Variations. Coloration of body varied from greenish to almost light brown with yellowish head, pronotal disc and anteroventral stripe on each lateral pronotal lobe (such darker coloration possibly connected with poor conditions during drying); apex of posteromedian process on last tergite sometimes almost angular; notch at apex of genital plate slightly varied in shape and width.

Female. Coloration and structure of body most similar to those of light brown males (probably due to same reason), but size distinctly larger, tympana clearly slit-like, tegmina somewhat wider (their length almost 2.6 times as great as their maximal width; in male, this ratio approximately 3.4) and without developed stridulatory apparatus, hind wings reaching tegminal apices but not protruding beyond them, abdominal tergites with a pair of rath- er large (almost triangular) lobules on ninth tergite and a pair of rather long (but less wide) lobules on tenth (last) tergite as well as without other distinct lobules ( Fig. 139 View Figs 126–144 ), and rest structures of abdominal apex as in Figs 139, 142 View Figs 126–144 .

Length in mm. Body: male 28–32, female 41; body with wings: male 67–70, female 79; pronotum: male 9–10, female 11; tegmina: male 57–59, female 67; hind femora: male 28–30, female 32; ovipositor 6.5.

Comparison. The new species differs from E. diasae in the presence of only one posterior process on the male last tergite (vs: this tergite has three distinct posterior processes or lobules; compare Figs 138 and 140 View Figs 126–144 ).