Separatula falcata tenuis Gorochov, 2025

Separatula falcata tenuis Gorochov subsp. nov.

( Figs 190–194 View Figs 183–198 )

Etymology. This subspecies name is the Latin word “tenuis” (thin) given due to a shape of the male cercal processes.

Material. Holotype – male, PERU: Junin Department, Satipo Prov., Rio Tampo Distr. , ~ 6 km N of Pichiguia Vill., “Reserva Comunal Ashaninka”, 11.35824 º S, 74.03205 º W, ~50 0 m, primary forest, at light, 14–23 November 2017, A. Gorochov, G. Irisov ( ZIN) GoogleMaps . Paratypes: 6 males, 2 females, same data as for holotype ( ZIN) GoogleMaps .

Description. Male (holotype). General appearance very similar to that of S. symmetrica sp. nov. but with following features: dorsum of head (behind apical denticle of upper rostral tubercle) and pronotal disc hardly lighter (light greyish brown) but with whitish longitudinal median line; darkened spot around median ocellus absent; tegmina practically not spotted; mirrors in their stridulatory apparatus barely longer; abdominal apex distinguished from that of nominotypical subspecies only by somewhat longer cercal processes (lower processes clearly longer than upper ones, and latter processes curved partly in opposite directions: left process, partly upwards; right one, partly downwards) as well as distinctly shorter and not very thin posterolateral lobules of genital plate ( Figs 190–192 View Figs 183–198 ).

Variations. Apical denticle of upper rostral tubercle usually with whitish dorsomedial mark; darkened part of pronotal disc varied from light greyish to greyish brown; tegmina often with small dark marks located approximately as in S. symmetrica sp. nov.; posterolateral lobules of genital plate sometimes slightly thinner than in holotype (almost as thin as in S. symmetrica sp. nov. but much shorter than in this species).

Female. Coloration and external structure of body similar to those of males, but tegmina in both known females spotted as in majorty of males, ninth abdominal tergite with posteroventral parts project- ed backwards and rounded posteriorly as well as with rather large but shallow concavities posterolaterally, last tergite simple (i.e., without distinct membranous area and with almost straight posterior edge), epiproct narrow as in male but clearly shorter and with rounded apex, cerci also distinctly shorter and with small spinule-like upper processes as well as with longer and thicker lower processes having apical parts very thin ( Fig. 194 View Figs 183–198 ). Genital plate short (slightly transverse), with low but distinct longitudinal median keel ventrally as well as with almost angular moderately short posteromedian notch and widely rounded posterolateral corners ( Figs 193, 194 View Figs 183–198 ); ovipositor as in Fig. 194 View Figs 183–198 .

Length in mm. Body 12–13.5; body with wings 29–31; pronotum 2.8–3.2; tegmina 22–23.5; hind femora 14.5–15.5.

Comparison. The new subspecies differs from the nominotypical one in the male cerci with slightly thinner processes (especially the upper process of the left cercus), in the lower cercal processes clearly longer than the upper ones, and in the posterolateral lobules of the male genital plate distinctly shorter (in S. f. falcata from Ecuador, the lower cercal processes is almost as long as the upper ones, and the genital plate posterolateral lobules are clearly longer; compare Figs 191 and 195 View Figs 183–198 ).