Ectoedemia paraortiva Rocienė & Stonis, 2014

Stonis, Jonas R. & Rocienė, Agnė, 2014, Additions to the Nepticulidae (Lepidoptera) of East Asia, with descriptions of three new species from Primorskiy Kray, Zootaxa 3846 (2), pp. 204-220 : 210

Ectoedemia paraortiva Rocienė & Stonis , sp. nov.

( Figs 1–5 , 22, 23, 26 , 28–30 )

Type material. Holotype: ♂, Far East RUSSIA, Primorskiy Kray, 20 km E Ussuriysk, Gornotayezhnoe, Biological Station, 5.viii.2011, leg. A. Rocienė, genitalia slide no. AG428 ( ZIN).

Diagnosis. This species belongs to the Ectoedemia suberis group and to most closely resembles the other recently described East Asiatic species, E. ortiva Rocienė & Stonis. Both species ( E. ortiva and E. paraortiva sp. nov.) differ from other Ectodemia by the broad phallus with numerous spine-like cornuti. The new species ( E. paraortiva sp. nov.) differs from E. ortiva by the absence of a fascia on the forewing ( Fig. 22 ) (in E. ortiva the fascia is well developed, see Fig. 24 ), also by the more grey hindwing with a long, weakly visible hair-pencil, which is not surrounded by a yellowish cream patch of androconia ( Fig. 23 ) (in E. ortiva this patch is very characteristic, see Fig. 25 ) (also see Remarks).

Male ( Figs 22, 23 ). Forewing length about 2.0 mm; wingspan about 4.4 mm. Head: palpi grey-cream; frontal tuft pale orange; collar whitish, comprising loose lamellar scales; scape cream; antenna with 30 segments, almost half as long as forewing; flagellum grey on upper side and underside. Thorax: dorsum and tegulae concolorous with base of forewing. Forewing grey-brown, apically more coarsely speckled with darker scales; fascia absent; cilia pale grey-brown; underside of forewing uniformly dark grey-brown. Hindwing ( Fig. 23 ) brownish grey or dark grey on upper side and underside; hair-pencil slender and long (longer than half of hindwing), but not prominent (hardly visible), grey-cream (but not surrounded by a patch of cream androconia as in E. ortiva , Fig. 25 ); costal margin remains brownish grey; cilia pale grey to grey. Legs brown-cream, shaded dark brown on upper side.

Male genitalia ( Figs 26 , 28–30 ). Capsule longer (270 mm) than wide (180 mm). Vinculum very broad (180 mm), with two very short but very broad lateral lobes ( Figs 26 , 28 ). Pseuduncus triangular ( Fig. 28 ), damaged in genitalia slide no. AG428 ( Fig. 26 ). Gnathos with long lateral arms and slender caudal process ( Fig. 28 ). Valva ( Fig. 29 ) 170 mm long, curved inwardly, gradually narrowed towards apex, with pointed apical process; transtilla with slender and long sublateral processes ( Figs 26 , 28 ). Phallus ( Fig. 30 ) broad (100 mm), 220 mm long, with two apical carinae; vesica with numerous spine-like or similar cornuti of different sizes ( Fig. 30 ). Although the phallus of E. paraortiva sp. nov. tends to be slightly smaller than that of E. ortiva , the new species is not distinguishable on basis of the phallus (see comparison of E. ortiva and E. paraortiva sp. nov. in Figs 30, 31 );

Female. Unknown.

Bionomics. Host-plant unknown; possibly a leaf-miner on Quercus (as the other species of the Ectoedemia suberis group). The only known specimen was collected in early August (attracted to light).

Distribution. The type locality is in dense, deciduous mostly broad-leaf forests of Primorskiy Kray ( Figs 1–5 ).

Etymology. This species is named after Ectoedemia ortiva Rocienė & Stonis , a closely similar (and presumably closely related) species recently described from the same locality in Primorskiy Kray as the new species (see Rocienė & Stonis 2013).

Remarks. We suppose that E. ortiva and E. paraortiva sp. nov. are probably two sympatric species.

Figures

FIGURES 1 – 5. Collecting locality and habitats. 1, the Arboretum (“ Dendrarium ”) of Gornotayezhnoe Biological Station, a site of the light trap during the fieldwork of 2011; 2 – 4, a habitat—deciduous mostly braodleaf forest in Gornotayezhnoe; 5, map of the region (courtesy of T. Patterson, USA), showing the collecting locality in Gornotayezhnoe, 20 km E Ussuriysk (Primorskiy Kray, Far East Russia).

FIGURES 22 – 27. Male genitalia of two possibly sympatric Ectoedemia species. 22, E. paraortiva Rocienė & Stonis, sp. nov., holotype, adult (ZIN); 23, same, hindwing; 24, E. ortiva Rocienė & Stonis, holotype, adult (ZIN); 25, same, hindwing. Scale bar 1 mm. 26, male genitalia, capsule, E. paraortiva Rocienė & Stonis, sp. nov., holotype, genitalia slide no. AG 428 (ZIN); 27, same, E. ortiva Rocienė & Stonis, a non type series specimen, genitalia slide no. AG 207 (ZIN). Scale bar 100 µm.

FIGURES 28 – 31. Details of male genitalia of two possibly sympatric Ectoedemia species. 28, E. paraortiva Rocienė & Stonis, sp. nov., male genital capsule, holotype (reconstruction), genitalia slide no. AG 428 (ZIN); 29, same, valva; 30, phallus (with basal part torn), E. paraortiva Rocienė & Stonis, sp. nov., holotype, genitalia slide no. AG 428 (ZIN); 31, same, E. ortiva Rocienė & Stonis, a non type series specimen, genitalia slide no. AG 433 (ZIN). Scale bar 100 µm.