Euthyrrhachis consobrina elsol, Gorochov, 2018

Gorochov, A. V., 2018, Systematics of the American Katydids (Orthoptera: Tettigoniidae). Communication 8, Proceedings of the Zoological Institute of the Russian Academy of Sciences 322 (4), pp. 398-456 : 454

Euthyrrhachis consobrina elsol subsp. nov.

( Figs 338–340 , 347–350 )

Etymology. This subspecies is named after its type locality, El Sol Natural Park in Bolivia.

Type material. Holotype – male, BOLIVIA: Santa Cruz Prov., 23 km SW of Santa Cruz City, El Sol Natural Park (small private park), ~ 600 m, secondary forest, on leaf of bush at night, 14–16 February 2014, A. Gorochov.

Description. Male (holotype). General appearance very similar to that of possible nominotypical subspecies (see above). Body colouration ( Figs 338–340 , 347–350 ) yellowish with greenish tinge (completely greenish in living condition), reddish brown areas on eyes, a pair of whitish longitudinal lines on dorsum behind eyes, light brown middle and greyish brown distal parts of antennal flagellum, transparent some membranes of dorsal field in right tegmen and most part of hind wings (but small distal portion of its costal part yellowish), brown tympanal membranes and two small inner marks near distal and proximal edges of inner tympanum, and light brown similar marks on outer surface of fore tibia. Upper rostral tubercle rather narrow and short, with longitudinal median groove on its dorsum and almost truncate apex; lower rostral tubercle also short, conical but with flattened anterior surface and almost acute apex which in contact with apex of previous tubercle; pronotum rather high but short, with flat and elongate (but not narrow) disc as well as not deep humeral nortches; wings long; tegmina insignificantly shorter than hind wings, rather narrow, with moderately wide medial (anal) half of stridulatory vein and without distinct mirror in left tegmen ( Fig. 338 ), as well as with elongate and rather narrow membranous mirror in right tegmen and with stridulatory vein of left tegmen as in Fig. 340 ; last tergite almost truncate posteriorly; epiproct rather widely triangular and widely rounded at apex; paraprocts smaller and rounded; cerci arcuate, with apical part somewhat more widened (with distinct almost tubercle-like lateral convexity) than in probable nominotypical subspecies ( Figs 347, 350 ); genital plate rather long, narrowing to apex which having a pair of almost cylindrical posterior lobules and moderately deep and narrow notch between them; styles of this plate long and barely arcuate, approximately twice as long as the above-mentioned notch ( Figs 348, 349 ); genitalia completely membranous.

Female unknown.

Length (mm). Body 24.0; body with wings 45.0; pronotum 5.0; tegmina 34.0; hind femora 23.0.

Comparison. The new subspecies differs from more northern and possibly nominotypical one in the medial half of stridulatory vein in the left male tegmen slightly narrower (for comparison see Figs 331, 335 and 338 ), apical part of male cercus more widened (see Figs 343 and 350 ), and posteromedian notch of male genital plate deeper (see Figs 342, 346 and 349 ).

Figures

Figs 331–340. Euthyrrhachis Br.-W., male: 331–337 – possible E. consobrina consobrina (Br.-W.) from “Reserva Comunal Ashaninka” (331–334) and from environs of Rio Venado Vill. (335–337); 338–340 – E. c. elsol subsp. nov. Stridilatory apparatus of left (331, 335, 338) and right (332, 336, 339) tegmina; stridulatory vein of left tegmen from below (333, 334, 337, 340).

Figs 341–350. Euthyrrhachis Br.-W.: 341–346 – possible E. consobrina consobrina (Br.-W.) from “Reserva Comunal Ashaninka” (341–345) and from environs of Rio Venado Vill.(346); 347–350 – E. c. elsol subsp. nov.Male abdominal apex from above (341, 347), from below (342, 346, 349) and from side (348); distal part of right male cercus from above (343, 350); female genital plate from below (344); ovipositor from side (345).