Elachista camilla, Kaila, Lauri, 2007

Kaila, Lauri, 2007, A taxonomic revision of the Elachista bedellella (Sircom) complex (Lepidoptera: Elachistidae: Elachistinae), Zootaxa 1629, pp. 1-25 : 17-23

Elachista camilla sp. n.

( Figs. 17, 18 , 25 , 54–57 , 59 G, H, 63)

Holotype: Russia: Altai Mts., 50°16–20´N 87°50–55´E, Kuraisky hrebet, 2500–3000 m, 4.VII.2000 T & K. Nupponen leg., L. Kaila prep. 3341, Coll. Nupponen. Paratypes (30 ď 6 Ψ): 26 ď 6 Ψ with the same collecting data as in the holotype (L. Kaila prep. n. 3527, 4114, 4115, 4384, 4385, 4391, 4392, Coll. Nupponen & MZH); Altai Mts., 50°16–20´N 87°50–55´E, Kuraisky hrebet, 2000–2500 m, 27.VI.2000 3 ď T. & K. Nupponen leg. (Coll. Nupponen), 2300 m, 6.VII.2001 1 ď K. Nupponen leg., 7.VII.2001 1 Ψ K. Nupponen leg. (L. Kaila prep. 4310, Coll. Nupponen).

Diagnosis. Elachista camilla externally resembles the palest specimens of E. bedellella ( Figs. 17, 18 ). The male genitalia of E. camilla differ from the latter by the much smaller cornutus, broader digitate process and by the broader and shorter juxta lobes ( Fig. 25 ). The female genitalia of E. camilla is characterised by the weak caudal dilation of the ductus bursae ( Fig. 63 ).

Description. Forewing length 3.8– 5 mm. Length of labial palpus 1.1–1.2 times diameter of head, ochreous-greyish white, varyingly fuscous below. Head, neck tuft, scape and pedicel of antenna greyish white, flagellum grey, weakly annulated with paler rings in male, distinctly annulated in female. Scales of tegula and thorax varying from white to pale grey. Foreleg leaden grey with pale tarsal rings, mid- and hindleg pale grey, tibia and tarsal articles darker with pale distal rings. Forewing costa basally narrowly dark grey; ground colour consisting pale grey and darker grey tipped scales giving a mottled grey appearance, with following wing markings: white transverse outwardly bent fascia at 2/5 wing length, another medially outwardly angled fascia formed of medially fused crescent-shaped pale spot at 2/3 of costa and another similar but often larger spot at tornus; shorter fringe scales forming grey fringe line; fringe scales grey, along termen white. Underside of forewing grey, fringe scales basally ochreous, distally grey. Hindwing above and below grey with concolorous fringe scales.

Male genitalia. Uncus lobes oval-shaped, 1.5 times longer than broad, distally rounded, with a few setae distolaterally, separated by narrow, deep incision. Gnathos elongate oval, broadest medially, twice longer than wide, tapered towards pointed apex. Valva 3.5 times longer than wide at its widest point in the middle; costa evenly convex medially, distinctly emarginated in distal third; sacculus slightly emarginated in basal third, distally bent, with narrow sclerotised reinforcement, joining cucullus at a right angle; distal margin of cucullus straight, cucullus somewhat bent towards costa. Digitate process small, broad, distally blunt and setose, extending to 1/10 length of valva. Juxta lobes mesally produced as broad, parallel-sided and distally blunt and setose, bent lobe, lobe as long as diameter of median plate of juxta, juxta lobes laterally produced to form sclerotised triangular keel that is joined to valval process. Vinculum small, broad and rounded. Phallus 2/3 of the length of valva, rather broad in basal two-third, distal third distinctly narrower; caecum rounded; apex with eversible lobe, shaped as in Figs. 59 G, H; cornutus formed as minute sclerotised plate with one blunt tooth.

Female genitalia. Papillae anales rounded, ventrally joined by narrow Y-shaped sclerotisation. Apophyses posteriores slender, straight, twice longer than the length of tergum 8. Apophyses anteriores half the length of apophyses posteriores. Ostium bursae in anterior margin of tergum 8, rounded, width 1/4 of the distance between apophyses anteriores; no distinctive antrum present; colliculum weakly sclerotised; ductus seminalis inserted near ostium; ductus bursae somewhat dilated near caudal 1/4, colliculum in the dilation, otherwise tubular, membranous, three times the length of apophyses posteriores; corpus bursae oval-shaped, medially with internal spines, signum absent.

Distribution. Known from Russia, Kuray in Altai Mts.

Figures

FIGURE 59. Male genitalia of Elachista species (phallus in lateral view). A: E. slivenica sp. n., holotype, L. Kaila prep. 4268; B: E. slivenica sp. n., paratype, L. Kaila prep. n. 4101; C: E. dorinda sp. n., holotype, L. Kaila prep. 4870; D: E. dorinda sp. n., paratype, L. Kaila prep. 4872; E: E. versicolora sp. n., holotype, L. Kaila prep. 4108; F: E. versicolora sp. n., paratype, L. Kaila prep. 4372; G: E. camilla sp. n., holotype, L. Kaila prep. 3341; H: paratype, L. Kaila prep. 4114.

FIGURES 13 – 18. External appearance of Elachista species. Fig. 13: E. dorinda sp. n., ♂ holotype; Fig. 14: E. dorinda sp. n., ♂ paratype (Turkey, Konya); Fig. 15: E. versicolora sp. n., ♂ holotype; Fig. 16. E. versicolora sp. n., ♂ paratype (Russia, Buryatia); Fig. 17: E. camilla sp. n., ♂ holotype; Fig. 18: E. camilla sp. n., Ψ paratype.

FIGURES 19 – 25. Male genitalia of Elachista species (juxta in lateral aspect). Fig. 19: E. bedellella (Sircom), L. Kaila prep. 4113; Fig. 20: E. lugdunensis (Frey), L. Kaila prep. 4393; Fig. 21: E. titanella Kaila & Jalava, paratype, L. Kaila prep. 4112; Fig. 22: E. slivenica sp. n., paratype, L. Kaila prep. 4386; Fig. 23: E. dorinda sp. n., paratype, L. Kaila prep. 4871; E. versicolora sp. n., paratype, L. Kaila prep. 4109; E. camilla sp. n., paratype, L. Kaila prep. 4115.

FIGURES 54 – 57. Male genitalia of Elachista camilla sp. n. Figs. 54, 55: general view, 56, 57: juxta in ventral view. Figs. 54, 56: holotype, L. Kaila prep. 3341; Figs. 55, 57: paratype, L. Kaila prep. 4114.

FIGURES 62 – 63. Female genitalia of Elachista species. Fig. 62: E. slivenica sp. n., paratype, L. Kaila prep. 4721; Fig. 63: E. camilla sp. n., paratype, L. Kaila prep. 4392.