Abrodiaeta (Abrodiaeta) macricula, Gorochov, 2018

Abrodiaeta (Abrodiaeta) macricula View in CoL sp. nov.

( Figs 241–252 View Figs 241–256 )

Etymology. Name of this species is the Latin word “macricula ” (slender, slim) due to its thin body.

Type material. Holotype – male, PERU: Ucayali Department, Atalaya Prov. , ~ 35 km NWW of Atalaya Town on Ucayali River , environs of Sapani Vill., ~ 300 m, primary/secondary forest, at light, 26–31 October 2008, A. Gorochov, M. Berezin, L. Anisyutkin, E. Tkatsheva, V. Izerskyy . Paratype – female, same data as for holotype.

Description. Male (holotype). Body long and slender. Colouration yellowish (possibly having greenish tinge in living condition) with following marks: head and pronotum ( Fig. 241 View Figs 241–256 ) with longitudinal (median) whitish stripe running from base of upper rostral tubercle to posterior edge of pronotal disc, with small and dense light brown dots on dorsal part of head and on pronotal disc, and with a pair of light brown longitudinal lines along lateral edges of whitish median stripe on anterior two thirds of this disc; tegmina with numerous small darkish dots on anal parts and partly light greyish brown membrane of mirror ( Figs 243–245 View Figs 241–256 ); hind wings almost transparent but with light yellowish grey distal portion of costal part; legs with light brown distal parts of spinules; last tergite with light brown distal part of posteromedian lobe; cerci with brown apices ( Figs 246, 248, 249 View Figs 241–256 ). Upper rostral tubercle distinctly projected before lower rostral tubercle, with distal part narrow (almost finger-like) and directed forwards/ upwards as well as having barely visible median groove on dorsum; this tubercle at base with a pair of small (low) convexities located above lateral ocelli and partly fused with each other dorsally ( Fig. 242 View Figs 241–256 ); lower rostral tubercle clearly shorter than upper rostral tubercle, with apex approximately as narrow as in latter tubercle and somewhat not reaching its ventral surface ( Fig. 242 View Figs 241–256 ); face distinctly oblique in profile ( Fig. 241 View Figs 241–256 ); scape almost four time as wide as apex of upper rostral tubercle. Pronotum rather long, with moderately narrow disc slightly narrowing to head and having straight anterior and convex posterior edges, and with lateral lobe as in Fig. 241 View Figs 241–256 . Wings long (hind wings somewhat longer than tegmina); tegmina narrow, with Sc branches forming cellular venation and one longitudinal pseudovein, with RS normal but having three branches in distal half ( Fig. 245 View Figs 241–256 ), and with stridulatory apparatus as in Figs 243, 244 View Figs 241–256 . Legs long and very thin (hind femur almost not widened), with femora having only a pair of small apical denticles on hind femur, fore tibia having a pair of oval tympana and several small spinules on both ventral keels, middle tibia almost as fore one but without tympana, and hind tibia with somewhat longer and more numerous spinules on all four keels. Last tergite clearly longer than previous abdominal tergites, with large but rath- er narrow posteromedian lobe strongly and angularly curved downwards near its base; this base looking as a pair of rather short lobules (when viewed from above) and with median elevation partly crossed by narrow posteromedian concavity (groove); more distal part of this lobe having longitudinal dorsomedian concavity and a pair of spines at apex; epiproct more or less rounded and slightly inflated, visible behind this apex and having dorsal concavity located between above-mentioned spines (possibly, curved downwards distal part of above-mentioned lobe of last tergite in reality homologous to epiproct which, in this case, divided into two parts: dorsal part with spines, ventral part rounded and slightly inflated) ( Figs 246, 248, 249 View Figs 241–256 ); cerci rather short but not thick, with distal part arcuately curved upwards/medially, and with apical part acute and strongly sclerotized ( Figs 246, 248, 249 View Figs 241–256 ); genital plate somewhat elongate, narrowing to moderately narrow apex having a pair of rather small and angular posterior lobules as well as rounded and moderately shallow notch between them ( Fig. 247 View Figs 241–256 ); genitalia with a pair of large and rounded semisclerotized structures having numerous very small denticles ( Fig. 250 View Figs 241–256 ).

Female. General appearance as in male, but dots on dorsum of both head and pronotum indistinct, whitish median stripe on this dorsum less contrast (more or less cream), and dorsal field of both tegmina yellowish with darkened small dots in its anal two thirds; genital plate rather small, rounded, with median keel-like convexity widened basally ( Fig. 251 View Figs 241–256 ); ovipositor as in Fig. 252 View Figs 241–256 .

Length (mm). Body: male 21.0, female 24.0; body with wings: male 43.0, female 47.0; pronotum: male 4.8, female 5.1; tegmina: male 32.0, female 34.0; hind femora: male 23.0, female 27.0; ovipositor 9.3.

Comparison. The new species differs from A. (A.) lanceolata (it most similar and related species) in the posteromedian lobe of male last tergite clearly narrower and with spine-like (not angular) apical projections.