Paratischeria mesoamericana 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/A1306212-7A99-4237-84BB-D2A138A2A013 |
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taxon LSID |
lsid:zoobank.org:act:A1306212-7A99-4237-84BB-D2A138A2A013 |
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treatment provided by |
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scientific name |
Paratischeria mesoamericana Diskus & Stonis |
| status |
sp. nov. |
Paratischeria mesoamericana Diskus & Stonis sp. nov. Figs 32-37 View Figures 32–37 , 46 View Figures 44–49 , 48 View Figures 44–49 , 98-104 View Figures 98–104 , 105-110 View Figures 105–110
Holotype.
male, pinned, with genitalia slide no. AD1005. Labels: Guatemala, Antigua Guatemala, San Juan del Obispo, 14°31'7"N, 90°43'50"W, elevation 1680 m, feeding larva on Montanoa hibiscifolia Benth., Asteraceae , 25 Feb 2012, field card no. 5109, A. Diškus (ZIN).
Diagnosis.
Externally, P. mesoamericana sp. nov. can be confused with some brightly speckled Astrotischeria Puplesis & Diškus species, including A. cornuata sp. nov. (described above) or the Central American A. guatemalica Diškus & Stonis, South American A. bachariphaga Diškus & Stonis, and A. truncata Diškus & Stonis (in Stonis et al. 2019). However, all these externally similar species belong to another genus, Astrotischeria , and possess principally different male genitalia with dorsal lobe(s) on the valva. In the male genitalia, the combination of a unique, distally pointed, four-lobed phallus (Fig. 99 View Figures 98–104 ), medially constricted anellus (Fig. 98 View Figures 98–104 ), and the presence of bifid cheatae on the valva (Fig. 101 View Figures 98–104 ) distinguish P. mesoamericana sp. nov. from all known congeneric species. This species is also distinctive because no other species in this genus is known to feed on Montanoa hibiscifolia Benth., Asteraceae .
Description.
Male (Fig. 46 View Figures 44–49 ). Forewing length 2.6-3.8 mm; wingspan 5.7-8.6 mm (n = 10). Head: frons and pecten ochreous cream; frontal tuft ochre cream, distally whitish cream; collar ochre cream; antenna longer than one half the length of forewing; flagellum glossy cream, usually annulated with dark brown or pale brown scales. Tegula ochre cream, densely irrorated with grey-brown scales; thorax ochre cream. Forewing yellow-ochre with irregular patches of dark scales: most of these scales are cream but black-tipped, others are plain brown; fringe grey, apically ochre; fringe line present, sometimes ill-defined, comprised of brown and black-tipped cream scales; forewing underside ochre-brown, apically sometimes brownish cream, without spots or androconia. Hindwing glossy, pale grey on upper side and underside, at base cream; fringe pale grey. Legs covered with grey-brown scales on upper side, ochreous cream on underside. Abdomen glossy, pale grey to grey-brown depending on angle of view, with some purple iridescence on upper side, ochre cream, densely speckled with grey-brown or ochre-brown scales on underside; genital plates ochre cream; anal tufts long, dorsally paired, cream.
Male genitalia (Figs 98-104 View Figures 98–104 ) with capsule 890 µm long, 450 µm wide. Uncus comprised of two short, rounded lobes (Fig. 100 View Figures 98–104 ) and two long, slender lobes (Fig. 104 View Figures 98–104 ). Socii small, paired, membranous. Valva (Figs 98 View Figures 98–104 , 102 View Figures 98–104 ) ca. 660 µm long, with bifid chaetae. Anellus thickened laterally and constricted medially (Figs 98 View Figures 98–104 , 103 View Figures 98–104 ). Vinculum small, rounded distally (Fig. 102 View Figures 98–104 ). Phallus (Fig. 99 View Figures 98–104 ) ca. 675 µm long, apically split into four pointed lobes.
Female (Fig. 43 View Figures 38–43 ). Forewing length 3.2-4.0 mm; wingspan 7.0-8.7 mm (n = 8). Scaling similar to male, but sometimes can be darker; frontal tuft ochre cream to ochre-brown. Thorax ochre cream to ochre-brown. Forewing sometimes darker than in males. Abdomen ochre-brown to brown, with some purple iridescence on upper side, ochre cream densely covered with brown or dark brown scales on underside. Ovipositor protruding.
Female genitalia (Figs 105-110 View Figures 105–110 ) 2520-2680 µm long. Ovipositor lobes unusually small, rounded, with peg-like setae (Fig. 109 View Figures 105–110 ); second pair of ovipositor lobes only slightly smaller. Anterior apophyses slightly shorter than posterior apophyses (Fig. 107 View Figures 105–110 ); prela with three pairs of long, rod-like projections (Figs 109 View Figures 105–110 , 110 View Figures 105–110 ). Corpus bursae with a very slender but very long proximal part, and a small, oval, main body (Fig. 107 View Figures 105–110 ); pectination indistinctive. Ductus spermathecae with many large coils (Fig. 108 View Figures 105–110 ).
Bionomics.
(Figs 32-37 View Figures 32–37 ). Host plant is Montanoa hibiscifolia Benth., Asteraceae (Figs 32 View Figures 32–37 , 33 View Figures 32–37 ). Larvae mine leaves in February. Larva is greenish yellow with a brownish green intestine and brown head. The mine is blotch-like (Figs 33-37 View Figures 32–37 ), usually slightly angular, fully transparent, without frass. Adults occur in March.
Distribution.
This species is known from a single locality in Guatemala: Antigua Guatemala, San Juan del Obispo, at the elevation 1680 m, but the host plant has a much wider distribution (see Discussion).
Etymology.
The species named after Mesoamerica, a historical region of North America.
Other material examined.
14 ♂, 27 ♀, paratypes: Guatemala, Antigua Guatemala, San Juan del Obispo, 14°31'7"N, 90°43'50"W, elevation 1680 m, feeding larvae on Montanoa hibiscifolia Benth., Asteraceae , 25 Feb 2012, field card no. 5109, A. Diškus, genitalia slide nos AD871♂, AD887♀, AD1006♀ (ZIN).
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