Ectoedemia

Rocienė, Agnė & Stonis, Jonas R., 2013, Nepticulidae (Lepidoptera) of East Asia (2). Study of a collection sample deposited at the Russian Academy of Sciences, with descriptions of new species and a checklist, Zootaxa 3652 (2), pp. 75-116 : 77

Ectoedemia species 219

( Figs 74–79 )

Material examined. 13, RUSSIA (Far East), Primorskiy Kray, 20 km E Ussuriysk, Gornotayezhnoe, 24.vii. 1983, leg. R. Puplesis, gen. slide no. AG 219 (ZIN).

Diagnosis. This species belongs to the Ectoedemia subbimaculella group. The male is recognized by a combination of the grey-white fascia of forewing, a weakly developed brownish hair-pencil surrounded by a patch of whitish androconia, and features of the male genitalia (broad valva, weakly developed central element of gnathos, very short vinculum).

Male ( Fig. 74 ). Forewing length 2.5 mm; wingspan 5.5 mm (n=1). Head: palpi brownish cream; frontal tuft orange; collar orange-cream, comprising piliform scales; scape orange-cream; antenna with 35–36 segments, slightly shorter than half forewing length; flagellum pale brown on upper side, cream to pale brown on underside. Thorax: dorsum and tegulae pale brown. Forewing pale grey-brown, speckled with dark grey-brown and fuscous scales, with oblique grey-white median fascia; cilia pale brown; underside uniformly pale brown to dark brown (depending on angle of view). Hindwing pale grey-brown on upper side and underside; hair-pencil very weakly developed, comprises a few pale grey-brown to dark brown setae, surrounded by a patch of white or grey-white androconia; cilia pale grey-brown. Legs pale brown, glossy. Abdomen: male genitalia ( Figs 75–79 ) with capsule considerably longer (256 mm) than wide (194 mm). Ventral plate of vinculum very short, lateral lobes absent ( Figs 76, 77 ). Pseuduncus triangular ( Fig. 77 ). Gnathos with long narrow lateral arms and weakly developed central element (no caudal process) ( Figs. 76, 77 ). Valva ( Fig. 75 ) 199 mm long, broadened medially, with strongly slerotized basal margin and short apical process; transtilla with long slender transverse bar and short slender sublateral processes. Aedeagus ( Figs 78, 79 ) about 263 mm long (possibly partially everted in figs 78, 79) and relatively slender (66–77 mm); vesica thickened laterally and with with numerous minute cornuti ( Fig. 79 ).

Female. Unknown.

Bionomics. Host-plant unknown; possibly a leaf-miner on Quercus . Adults fly in July (attracted to light).

Distribution. It occurs in dense, mostly deciduous forests of Primorskiy Kray ( Fig. 2 ).

Remarks. This new species left unnamed because of the poor quality of the material.

Figures

FIGURES 74 – 79. Ectoedemia species 219, slide no. AG 219 (ZIN). 74, adult, male. Scale bar 1 mm; 75, valva; 76, capsule (aedeagus removed); 77, same, reconstruction; 78, aedeagus; 79, same, reconstruction. Scale bar 100 µm.

FIGURES 1 – 4. Primary habitats in Primorskiy Kray (East Asia). 1, Quercus dentata wood and grassland, 10 km S Slavyanka, Ryazanovka; 2, 3, Dense, mostly deciduous forest, 20 km E Ussuriysk, Gornotayezhnoe; 4, map of the region (courtesy of T. Patterson, USA), showing the collecting localities in Primorskiy Kray, see text (in the list of identified taxa).