Tomeophera cellulata, 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 : 419

Tomeophera cellulata sp. nov.

( Figs 82–92 )

Etymology. This species name is the Latin word “cellulata ” (cellular), because its tegminal costal area has cellular venation.

Type material. Holotype – male, PERU: Junin Department, Satipo Prov. , 12 km N of Satipo Town , “Concesion de Conservacion de la Universitaria”, 11.2031563°S, 74.6194062°W, ~ 600 m, primary/ secondary forest, at light, 25–27 November 2017, A. Gorochov, G. Irisov.

Description. Male (holotype). General appearance more or less similar to some other congeners having greenish (not whitish) body colouration, but with following characteristic features: upper rostral tubercle of head rather long and vertically compressed (almost lamellar), barely projecting before anterior edges of antennal scapes, with moderately low and rounded apex in profile ( Figs 82, 83 ); anterior part of head clearly oblique in profile ( Fig. 83 ); head colouration yellowish (greenish in living condition) with almost whitish labrum, palpi and marks behind eyes, as well as with rose eyes; pronotum with very low keels along borders between disc and lateral lobes, with slightly concave anterior and rounded (convex) posterior edges of disc, and with shape of lateral lobes as in Fig. 83 ; pronotal colouration uniformly yellowish with greenish tinge; tegmina long, moderately narrow, with strongly convex costal and almost straight anal edges, with cellular venation of costal area (i.e. this area without longitudinal pseudoveins) and three slightly oblique branches in distal half of lateral field (between radial area and anal tegminal edge), and with stridulatory apparatus as in Fig. 84 ; tegminal colouration greenish with yellowish tinge and almost transparent membranes in dorsal field and near it ( Figs 84, 85 ); hind wings with distal area similar to tegmina in colouraton and with transparent other parts ( Fig. 86 ); abdominal apex with rather wide and rounded but not deep posteromedian notch of last tergite, with moderately long and narrow (almost finger-like) epiproct, with small rounded paraprocts, and with rather long and arcuate cerci having apical part barely flattened as well as slightly widened and provided with two small dark denticles (these denticles shortly keel-like and with additional very small conical denticles near upper keel-like denticle; Figs 87–89 ); genital plate moderately short, narrowing to apex having a pair of almost spinule-like posterior lobules as well as rather deep and moderately wide (almost rounded) notch between them ( Fig. 88 ); genitalia with a pair of large semisclerotized structures having rather long anterior projections located near each other (these projections with numerous very small denticles; Figs 90–92 ).

Female unknown.

Length (mm). Body 19.0; body with wings 42.0; pronotum 4.1; tegmina 28.0; hind femora 16.5.

Comparison. The new species is distinguished from majority of congeners by the costal tegminal area without longitudinal pseudoveins (which in some species look almost as Sc branches), distal branches between the radial area and anal tegminal edge more oblique (less parallel to the longitudinal axis of tegmen), male cerci with different structure of their apical part, and male genitalia having their large semisclerotized structures with denticulate anterior projections. From T. ovatipennis (Bruner, 1915) , the new species differs in the tegmina much longer.

Figures

Figs 78–86. Tomeophera Br.-W.: 78–81 – T. parallela sp. nov.; 82–86 – T. cellulata sp. nov. Head with pronotum from side (78, 83) and from above (79, 82); stridulatory apparatus of male tegmina (84); left tegmen of female (80) and male (85); distal half of costal part of hind wing (81, 86).

Figs 87–94. Tomeophera Br.-W.: 87–92 – T. cellulata sp. nov.; 93, 94 – T. parallela sp. nov. Abdominal apex of male (87, 88) and female (93) from above (87) and from below (88, 93); distal part of left male cercus from above and slightly medially (89); male genitalia from above (90), from below (91) and from side (92); ovipositor from side (94).