Astrotischeria cornuata Diskus & Stonis, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.970.54801 |
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publication LSID |
lsid:zoobank.org:pub:EAAFFA3F-EB72-413E-9450-A0A9B7844F14 |
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persistent identifier |
https://treatment.plazi.org/id/3ECCBA77-7B14-44F4-9A81-0331ADABAB6C |
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taxon LSID |
lsid:zoobank.org:act:3ECCBA77-7B14-44F4-9A81-0331ADABAB6C |
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treatment provided by |
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scientific name |
Astrotischeria cornuata Diskus & Stonis |
| status |
sp. nov. |
Astrotischeria cornuata Diskus & Stonis sp. nov. Figs 10-14 View Figures 10–14 , 42 View Figures 38–43 , 43 View Figures 38–43 , 81-88 View Figures 81–88 , 89-91 View Figures 89–91
Holotype.
male, pinned, with genitalia slide no. AD522. Labels: Honduras, Copán Department, Copán, 14°50'13"N, 89°8'37"W, elevation 620 m, from feeding larva ( Asteraceae host plant unidentified), 15 Feb 2012, field card no. 5090, A. Diškus (ZIN).
Diagnosis.
Externally, this new species can be confused with some other dark speckled Tischeriidae species, including Paratischeria mesoamericana sp. nov. (described below). In the male genitalia, the presence of pseudotranstilla (Figs 83 View Figures 81–88 , 87 View Figures 81–88 ) and a unique, four-furcated phallus (Figs 85 View Figures 81–88 , 86 View Figures 81–88 ) distinguish A. cornuata sp. nov. from all known congeneric species. In the female genitalia, the combination of large ovipositor lobes, densely covered with peg-like setae (Fig. 90 View Figures 89–91 ) and a very small corpus bursae (Fig. 89 View Figures 89–91 ) distinguish the new species from other Astrotischeria taxa.
Description.
Male (Fig. 42 View Figures 38–43 ). Forewing length 2.8-3.2 mm; wingspan 6.0-7.2 mm (n = 3). Head: frons grey cream to yellow-ochre; pecten golden pale grey to ochre cream; frontal tuft glossy, metallic grey, distally yellow-ochre; collar yellow-ochre; antenna slightly to distinctly longer than one half the length of forewing; flagellum glossy grey. Tegula grey; thorax grey-ochre medially, grey laterally and distally. Forewing densely irrorated with dark grey scales (in apical half of the forewing majority of these scales are ochre-tipped) and with irregular, oblique patches of bright yellow-ochre scales; fringe dark grey, apically ochre; fringe line distinctive, comprised of dark grey scales; forewing underside blackish grey, without spots or androconia. Hindwing dark grey or black-grey depending on angle of view, without androconia; fringe dark grey with some ochreous-purple tint. Legs dark grey or black-grey, irregularly annulated with ochre cream scales on upper side. Abdomen glossy dark grey-brown on upper side and underside, sometimes with some purple iridescence; genital plates ochreous cream; anal tufts cream to grey cream: two dorsal tufts large, almost merged in one, lateral tufts shorter.
Male genitalia (Figs 81-88 View Figures 81–88 ) with capsule 880-920 µm long, 410-445 µm wide. Uncus (Figs 81-83 View Figures 81–88 ) comprised of two short, widely rounded lobes (Fig. 81 View Figures 81–88 ) and two long, slender lobes (Figs 82 View Figures 81–88 , 83 View Figures 81–88 ). Socii small, paired, membranous. Valva (Figs 83 View Figures 81–88 , 84 View Figures 81–88 ) ca. 780-790 µm long; dorsal lobe (Fig. 83 View Figures 81–88 ) greatly developed, slender, curved inwardly (Fig. 88 View Figures 81–88 ); ventral lobe of valva very slender and straight (Figs 83 View Figures 81–88 , 84 View Figures 81–88 ). Valvae connected with a unique transverse band which we call here a pseudotranstilla (Figs 83 View Figures 81–88 , 87 View Figures 81–88 ). Anellus mostly membranous, indistinctive (Fig. 83 View Figures 81–88 ). Vinculum rounded distally (Fig. 83 View Figures 81–88 ). Phallus (Fig. 86 View Figures 81–88 ) ca. 475-485 µm long, apically split in two short, weakly chitinized, median lobes and two pointed, lateral lobes, the latter each with an apical spine (Fig. 85 View Figures 81–88 ).
Female (Fig. 43 View Figures 38–43 ). Forewing length 3.0-3.5 mm; wingspan 6.6-7.6 mm (n = 4). Similar to male, but with a yellow-ochre postmedian area of forewing, usually larger and often resembling a fascia. Abdomen dark grey on upper side, yellow-ochre with some grey scales on underside. Ovipositor not protruding.
Female genitalia (Figs 89-91 View Figures 89–91 ) ca. 3150 µm long. Ovipositor lobes unusually large, rounded, densely covered with peg-like setae (Fig. 90 View Figures 89–91 ); second pair of ovipositor lobes very small and slender, with numerous long setae. Anterior and posterior apophyses equal in length (Fig. 90 View Figures 89–91 ); prela comprised of three pairs of unique, rod-like projections (Fig. 91 View Figures 89–91 ). Corpus bursae very long, with a slender proximal part and very small main body without distinctive pectination (Fig. 89 View Figures 89–91 ). Ductus spermathaecae sinuous, without distinctive coils (Fig. 89 View Figures 89–91 ).
Bionomics.
(Figs 10-14 View Figures 10–14 ). Host plant is an Asteraceae , genus and species unidentified (Figs 10 View Figures 10–14 , 11 View Figures 10–14 ). Larvae mine leaves in February. The mine is blotch-like (Figs 11-14 View Figures 10–14 ), irregularly shaped, whitish grey, not transparent, without frass. Adults occur in March.
Distribution.
This species is known from a single locality in Honduras, Copán Department, Copán, at the elevation of 620 m.
Etymology.
The species name is derived from Latin cornuatus (horned), in reference to the large, horn-like lobes of the uncus and valva in the male genitalia.
Other material examined.
2 ♂, 4 ♀, paratypes: Honduras, Copán Department, Copán, 14°50'13"N, 89°8'37"W, elevation 620 m, from feeding larvae ( Asteraceae host plant unidentified), 15 Feb 2012, field card no. 5090, A. Diškus, genitalia slide nos AD975♂, AD981♀ (ZIN).
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