N A T U R K U N D L I C H E S   I N F O R M A T I O N S S Y S T E M

Micropterix gaudiella Zeller & Huemer, 2015

(zoological nomenclature: valid name, available)

General information:

Micropterix gaudiella Zeller & Huemer, 2015: 136-140.
Type locality: Italia sept., Bergamo, Alpi Orobie Rifugio Ca d´Arera 1600 m 9°47,8´E, 45°55,07´N
Type: Holotype img src=../male.gif>: Italia sept., Bergamo, Alpi Orobie Rifugio Ca d´Arera 1600 m 9°47,8´E, 45°55,07´N, 25.vi.2014, leg. Huemer TLMF 2014-006 (TLMF), label with identification numbers CZ-Z30577, label “DNA BARCODE TLMF Lep14851” and red label “HOLOTYPE of Micropterix gaudiella Zeller & Huemer”; in coll. TLMF, Innsbruck

Synonyms, misspellings, wrong determinations, etc.:
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Habit:

   
PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.25, leg. et coll. Mayr Toni PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.25, leg. et coll. Mayr Toni    
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
   

Description of adults: Examined: 174 , 67 . Forewing length: 3.5 - 3.8 mm, 4.0 - 4.3 mm. Head black-brown; vestiture of hair-like scales on the head yellow to dirty yellow; antennae dark brown, 3/4 (), respectively, 1/2 () of forewing length; thorax and tegulae violet with golden glance; forewings gloomy bluish with conspicuously broad and mostly bronzy golden markings: a trapezoid-shaped fascia at 1/4; at 1/2 a moderately broad straight fascia across the whole wing width, inwardly oblique; at 3/4 a broad, variable-shaped, inwardly convex fascia; fringe bronzy golden, basally bluish-violet; hindwings bronzy golden, apically tinged purplish; fringe bronzy golden; legs and abdomen brown, golden shining.

Variability: There is a little variation in the ground colouration from gloomy bluish to purple violet. Sometimes there is also a small costal spot at 3/5. The wing pattern differs only little between the sexes in the broadness of the fasciae, which is typical for the genus.

Distribution:

M. gaudiella is only known from the mountain Pizzo Arero (Parco delle Orobie Bergamasche, Piedmont, Italy) at an altitude of 1600 m a.s.l. so far.

Biology:

The species was observed from the end of June to mid July at outskirts of forests with tall herbaceous vegetation and bushes, congregating on Rosa sp. and feeding its pollen. In competition with the species on flowers of Rosa sp., also Micropterix aruncella (Scopoli, 1763) was recognized. On the same location also Micropterix rothenbachii Frey, 1856 was found.

Stages in development:

The early stages are unknown.

Anatomy:

-genitalia, prep.-no. 1/2014, C. Zeller, PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.23, leg. Huemer Peter, coll. TLMF, Innsbruck -genitalia, prep.-no. 1072, preparation in caustic potash, M. Kurz, PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.25, leg. et coll. Mayr Toni -genitalia, prep.-no. 1072, permanent preparation, M. Kurz, PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.25, leg. et coll. Mayr Toni -genitalia, receptaculum seminis in higher magnification, prep.-no. 1072, M. Kurz, PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.25, leg. et coll. Mayr Toni
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view

Genitalia. Uncus long, slender, with a broad rounded tip; a paired association of hair-like setae ventrally beyond the uncus; accessory claspers moderately long, nearly keel-shaped; along distal margin, a row of about 10–12 moderately long distally hook-like thickened setae oriented in slightly ventral direction; at inner surface proximally another irregular row of five or six shorter, finer setae; valvae moderately long, stout, distal third enlarged and strongly bent dorsally, constricted at the point of inflection; at the inner surface of the valvae a group of shorter setae postbasally; on the inner surface of the lower margin two to three irregular rows of shorter spinoid setae and some longer setae on the distal fourth part.
Genitalia. Tergite IX missing; sternite IX reduced, constricted medially, with strongly fringed lateral margins, without diagnostic features. Terminal papillae with two sclerotized plates forming an undiagnostic band; receptaculum seminis long and slender, constricted in the first third, with generotypical transverse striation.

Diagnosis:

M. gaudiella PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.25, leg. et coll. Mayr Toni M. trifasciella : Piemonte, Piamprato, 1600 m, 1969.07.10, leg. Klimesch, coll. Zoologische Sammlung des Bayerischen Staates, Munich M. rablensis : Italy, Friuli-Venezia Giulia, Tarvisio, Lago del Predil, 2001.06.30, leg. Zeller & Kurz, coll. Michael Kurz M. completella : Sardinia, near Tempio Pausania, between Telti and Calangianus, 1996.05.10, leg. Kurz & Kurz, coll. Michael Kurz
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
M. isobasella : Valais, Zwischbergental, 1650 m, 2002.07.23, leg. Renate Hausenblas und Christof Zeller, coll. Christof Zeller M. stuebneri PARATYPE: Spain, Andalucia, Sierra Nevada, Posada de los Arrieros, 1700 m, 2011.06.21, leg. et coll. A. Werno M. gaudiella -genitalia, prep.-no. 1/2014, C. Zeller, PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.23, leg. Huemer Peter, coll. TLMF, Innsbruck M. trifasciella -genitalia, prep.-no. 751, M. Kurz: Piemonte, province of Cuneo, Bellino, Santa Anna, Valle Traversagn, 2100 m, 2001.07.21, leg. Peter Huemer, coll. Michael Kurz
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
M. rablensis -genitalia, prep.-no. 787, M. Kurz: Styria, near Graz, Gösting, [? 18]66.06.20, coll. Naturhistorisches Museum, Vienna M. completella -genitalia, prep.-no. 695, M. Kurz: Sardinia, near Tempio Pausania, between Telti and Calangianus, 1996.05.10, leg. Kurz & Kurz, coll. Michael Kurz M. isobasella -genitalia, prep.-no. 805, M. Kurz: Valais, Zwischbergental, 1650 m 2002.07.23, leg. Renatae Hausenblas, Christof Zeller, coll. Michael Kurz M. stuebneri -genitalia, prep.-no. 973, M. Kurz, PARATYPE: Spain, Andalucia, Sierra Nevada, Posada de los Arrieros, 1700 m, 2001.06.21, leg. et coll. F. Theimer
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
M. gaudiella -genitalia, prep.-no. 1072, M. Kurz, PARATYPE: Italia, Lombardia, Bergamo, near Rif. Saba, 1600 m, 2014.06.25, leg. et coll. Mayr Toni M. trifasciella -genitalia, prep.-no. 813, M. Kurz: Piemonte, province of Cuneo, Colle dell´ Agnello, 2150 m, 2001.07.20, leg. Peter Huemer, coll. Michael Kurz M. rablensis -genitalia, prep.-no. 814, M. Kurz: Italy, Friuli-Venezia Giuglia, near Tarvis, Lago del Predil, 2001.06.30, leg. Zeller & Kurz, coll. Michael Kurz M. completella -genitalia, prep.-no. 696, M. Kurz: Sardinia, near Tempio Pausania, between Telti and Calangianus, 1996.05.10, leg. Kurz & Kurz, coll. Michael Kurz
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
   
M. isobasella -genitalia, prep.-no. 806, M. Kurz: Valais, Zwischbergental, 1650 m, 2002.07.23, leg. Renate Hausenblas, Christof, Zeller, coll. Michael Kurz M. stuebneri -genitalia, prep.-no. 974, M. Kurz, PARATYPE: Spain, Andalucia, Sierra Nevada, Posada de los Arrieros, 1700 m, 2011.06.21, leg. et coll. A. Werno    
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
   

Within the known distribution range in north-western Italy, no externally similar species is known so far. Micropterix trifasciella Heath, 1965, from Piedmont (Italy), shows somewhat similar but conspicuously narrower fasciae. Micropterix rablensis Zeller, 1868, from Friuli (Italy), Carinthia (Austria) and western Slovenia shows a somewhat similar wing drawing but is predominantly smaller and differs in the reddish bronzy golden to purple ground colouration of the forewings. Micropterix completella Staudinger, 1871, endemic to Sardinia and Corse (Thierry & Nel 2012), has purple violet forewings with comparably broad fasciae. From all these mentioned species, the species is clearly separated by its male genitalia, e. g. by the distinct shape of uncus and accessory claspers as well as by the orientation and form of the 10–12 long setae on the accessory claspers (Kurz & Kurz 2015). In the male genitalia, the species closely resembles Micropterix isobasella Staudinger, 1871 (Valais, Switzerland) and the recently described Micropterix stuebneri Zeller, Werno & Kurz, 2013 (Sierra Nevada, Spain), being distinguished from M. isobasella mainly by its longer uncus and the partly hook-like modified thickened setae at the rounded distal margin of the accessory claspers and from M. stuebneri mainly by its distinctly shorter and smaller accessory claspers (Zeller-Lukashort et al. 2013). M. isobasella can also easily be distinguished by its unicolorous golden forewings without any significant markings. In the female genitalia the species differs from M. rablensis by the shape of sternite IX, from M. trifasciella and M. completella by its strongly fringed lateral margins of sternite IX and from M. completella also by its short receptaculum seminis. There are no differences in the female genitalia between M. isobasella and M. gaudiella.

Genetics:

The intraspecific divergence of the barcode region of Micropterix gaudiella is moderate with a mean distance of 0.46% and a maximum distance of 0.77% (n=4). The minimum distance to the genetically nearest neighbour, Micropterix schaefferi, on the contrary is much higher with 2.65% (mean dist. 3.18%, max. dist. 3.76%; n=9). The minimum distance to the morphologically closest Micropterix isobasella is 3.67% (mean dist. 3.85%, max. dist. 4.18%; n=1) and to Micropterix stuebneri 4.73% (mean dist. 4.99%, max. dist. 5.22%; n=1).

Worth knowing:

Etymology: It was a great pleasure to find this definitely unexpected new species from the Italian Alps. Therefore the new species is called "gaudiella", derived from the Latin word "gaudium", which means "fun, pleasure, happiness, …".

Remark: The labels used by Peter Huemer, Melania Massaro, Toni Mayr, Norbert Pöll and Siegfried Ortner differ in the usage of local names of the type locality but all refer to the same spot centred on 9°47,8´E; 45°55,07´N (DDM). According to Melania Massaro there are additional specimens collected at the type locality and deposited in MBCG, which were not examined and are therefore not included in the type series.

Sources:

Kurz, M. A. & M. E. Kurz 2000–2015. Naturkundliches Informationssystem. – URL: http://www.nkis.info [online 20 October 2015].
Thierry, V. & J. Nel 2012. Microlépidoptères nouveaux ou peu connus de la faune de France (Lep. Micropterigidae, Blastobasidae, Cosmopterigidae, Gelechiidae). Oreina 20: 17–18.
Zeller-Lukashort H. C., A. Werno & M. A. Kurz 2013. A new species of Micropterix Hübner, [1825] from southern Spain (Lepidoptera: Micropterigidae). SHILAP Revista de Lepidopterología 41 (164): 489-494.
Zeller, H. C. & P. Huemer 2015. A new species of Micropterix Hübner, 1825 from the Orobian Alps (Italy) (Lepidoptera, Micropterigidae). Nota lepidopterologica 38 (2): 133-146.

Publication data:

history:
Zeller Christof: 2014.07.28
Zeller Christof: 2014.07.29
Zeller Christof: 2015.01.23
Kurz Michael: 2015.10.28
Kurz Michael: 2015.10.29
Kurz Michael: 2017.02.26
not reviewed

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