Astrotischeria onae Diškus & Stonis,

Jonas R. Stonis, Arūnas Diškus, Fernando Carvalho Filho & Owen T. Lewis, 2018, American Asteraceae-feeding Astrotischeria species with a highly modified, three-lobed valva in the male genitalia (Lepidoptera, Tischeriidae), Zootaxa 4469 (1), pp. 1-69: 43-49

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Astrotischeria onae Diškus & Stonis

sp. nov.

Astrotischeria onae Diškus & Stonis  , sp. nov.

( Figs. 18, 19View FIGURES 16–19, 160–175View FIGURES 160–163View FIGURES 164–168View FIGURES 169–175, 233View FIGURE 233)

Type material. Holotype: ♂, GUATEMALA  : Antigua Guatemala, San Juan del Obispo , 14°31'07"N, 90°43'50"W, elevation 1680 m, 25.ii.2012, field card no. 5114, A. Diškus, genitalia slide no. AD 909♂ ( ZMUC)GoogleMaps  .

Diagnosis. The combination of a wide valva with unique-shaped dorsal lobes (see Figs. 18, 19View FIGURES 16–19), strongly developed anellus with lateral horn-like processes, long, bilobed uncus in the male genitalia, and a dark-speckled forewing distinguishes A.onae  sp. nov. from all other Astrotischeria  , including other members of the A. trilobata  group.

Male ( Figs. 160–163View FIGURES 160–163). Forewing length about 3.7 mm; wingspan about 8.1 mm. Head: face greyish cream; palpi yellowish creame; frontal tuft comprised of yellowish-tipped, brownish grey lamellar scales; antenna with about 37 segments, distinctly longer than half the length of forewing; flagellum grey on both upper and underside; sensillae long but rather indistinct. Thorax and tegula covered with brownish grey, predominantly cream-tipped scales. Forewing densely irrorated with brownish grey scales with some ochre gloss; in apical third, forewing also speckled with black scales; fringe pale brownish grey; fringe-line distinct, formed of black scales; forewing underside grey-brown, except small, irregular scaleless patch on the base, without androconia. Hindwing brownish grey on both upper and underside, without androconia; fringe brownish grey. Legs glossy, brownish cream, on upper side densely covered with blackish brown scales with little purple iridescence. Abdomen grey-brown to blackish grey on both upper and underside; anal tufts long, dark grey; genital segments cream.

Female. Unknown.

Male genitalia ( Figs. 18, 19View FIGURES 16–19, 164–175View FIGURES 164–168View FIGURES 169–175). Capsule about 590 µm long, 260 µm wide. Uncus ( Fig. 165View FIGURES 164–168) consisting of two long, slender lateral lobes. Valva divided ( Figs. 18, 19View FIGURES 16–19, 169–175View FIGURES 169–175): ventral lobe ( Figs164View FIGURES 164–168, 171View FIGURES 169–175) very wide, about 365 µm long (excluding basal process); dorsal lobes consisting of two elements: wide, distally curved lobe ( Figs. 18, 19View FIGURES 16–19, 169, 173View FIGURES 169–175), and slender, horn-like process; transtilla absent; basal process of valva rather long, curved ( Figs. 165View FIGURES 164–168, 170View FIGURES 169–175). Anellus strongly chitinized laterally, with a distinct spine-like process on each side ( Figs. 175View FIGURES 169–175), and a few setae ( Fig. 174View FIGURES 169–175). Phallus ( Figs. 166–168View FIGURES 164–168) about 400–405 µm long, distally widened and bifurcated, without spines ( Fig. 168View FIGURES 164–168).

Bionomics. Host plant unknown (unidentified). Mining larva recorded in February. Leaf-mine blotch-like.

Distribution ( Fig. 233View FIGURE 233). Known from a single locality in the highlands of Guatemala, at an elevation of about 1680 m.

Etymology. The species is named in memory of Ona Diškevičienė (1951–2017), late mother of the author (and devoted collector) Arūnas Diškus.


Zoological Museum, University of Copenhagen