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

Micropterix garganoensis Heath, 1960

(zoological nomenclature: valid name, available)

General information:

Micropteryx garganoensis Heath, 1960: 130, fig. 1
Type locality: Italy, Puglia, Promontorio del Gargano, Foresta Umbra
Type: Holotype : Puglie, Foresta Umbra, 23.V.53, leg. S. Zangheri; genitalia investigation J.Heath no. 167; in coll. LNK

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

   
: Puglia, Gargano, Monte Sant┤Angelo, 1993.05.22, leg. H/Z/K, coll. Michael Kurz : Puglia, Gargano, Monte Sant┤Angelo, 1993.05.22, leg. HZK, coll. Michael Kurz    
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
   

Scheme of wing pattern:

Description of adults: Examined: 5 , 4 . Forewing length: 2.7 - 3.0 mm, 3.1 - 3.5 mm. Head black-brown; vestiture of hair-like scales on the head yellow to rusty yellow; antennae dark brown, bronzy golden shining, with a slight purplish tinge, 9/10 (), respectively, 3/5 () of forewing length; thorax bronzy golden, distally purple-violet, partly with single blueish scales; tegulae purple-violet, proximally bronzy golden, distally also with bueish scales; forewings bronzy golden, often with a slight greenish to reddish tinge, a narrow purple line along costa from basis outwards to 1/4, sometime to 2/3, otherwise devoid of any markings; fringe bronzy golden; hindwings bronzy golden, especially apically more or less tinged purple; fringe bronzy golden to coppery; legs and abdomen brown, golden shining.

Distribution:

The species is endemic to the Gargano peninsula in central Italy. The investigated specimens have been found in a height of approximately 600 - 700 m a.s.l. (Kurz & Kurz 2013).

Biology:

The species has been found at the edge of open shrubland, adjacent to a dry meadow. The shrubs consisted of Quercus ilex, Ficus carica, Spartium junceum and Crataegus sp., the herbal vegetation included Rubus sp., Galium sp. and different Poaceae. It should be mentioned, that the type locality Foresta umbra, as tells the italian name, is a shady, humid woodland, consisting mostly of Acer and Fagus sylvatica with partly dense underwoods. Such conditions are unlikely to be favourable for M. garganoensis and it is assumed, that the species inhabits more open biotopes like that, where we have found it. This locality is only a few kilometers apart from the core of the Foresta Umbra. The imagines were on the wing around noon at the end of May (Kurz & Kurz 2013).

Stages in development:

The early stages are unknown.

Anatomy:

 
-genitalia, prep.-no. 674, M. Kurz: Puglia, Gargano, Monte Sant┤ Angelo, 1993.05.22, leg. H/Z/K, coll. Michael Kurz -genitalia, prep.-no. 1027, M. Kurz: Puglia, Gargano, Monte Sant┤Angelo, 1993.05.22, leg. H/Z/K, coll. Michael Kurz -genitalia, receptaculum seminis in higher magnification, prep.-no. 1027, M. Kurz: Puglia, Gargano, Monte Sant┤Angelo, 1993.05.22, leg. H/Z/K, coll. Michael Kurz  
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
 

Genitalia. Uncus short with a knob-like tip; tegumen prominent; accessory claspers not cleary offset from tegumen, their posterior and ventral margin at the inner side with a row of few short, modified stout and thickened setae, followed by a row of about 7 longer, more straight, stout and thickened setae; valves moderately long, distinctly constricted medially, the spoon-like distal third bent upwards; valves at the inner side postbasally with a group of moderately long, straight and thickened setae; their distal third at the inner side with 2-3 irregular rows of moderately long to short, straight, stout and thickened setae.

Genitalia. Tergite IX missing; sternite IX much reduced, nearly dissolved in two crosswise, band-like platelets; segment X with band-like sclerotization; receptaculum seminis short, proximal half narrow, distal half bag-like inflated, with distinct striation.

Diagnosis:

M. garganoensis : Puglia, Gargano, Monte Sant┤Angelo, 1993.05.22, leg. HZK, coll. Michael Kurz M. aruncella : Austria, Salzburg, Thalgau, 1989.05.18, leg. et coll. Michael Kurz M. calthella : Tuscany, Pisa district, near Laura, Lorenzana, 1995.05.07, leg. HZK, coll. Michael Kurz M. paykullella (form without markings): France, Alpes Maritimes, Marguareis, 2000.07.22, leg. Renate Hausenblas and Christof Zeller, coll. Christof Zeller
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. garganoensis -genitalia, prep.-no. 674, M. Kurz: Puglia, Gargano, Monte Sant┤ Angelo, 1993.05.22, leg. HZK, coll. Michael Kurz M. aruncella -genitalia, prep.-no. 886, M. Kurz: Greece, Mt. Olympos, Kataphyg., 2000 m, 1962.06.28, leg. Klimesch Josef, coll. Zoologische Sammlung des Bayrischen Staates, Munich M. calthella -genitalia, prep.-no. 251, M. Kurz: Salzburg, Flachgau, Thalgau, Thalgauegg, 1987.05.17, leg. Zeller/Kurz, coll. Michael Kurz M. paykullella -genitalia (form without markings), prep.-no. 741, M. Kurz: France, Alpes Maritimes, Marguareis, 2000.07.22, leg. Hausenblas und Zeller, 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. garganoensis -genitalia, prep.-no. 1027, M. Kurz: Puglia, Gargano, Monte Sant┤Angelo, 1993.05.22, leg. H/Z/K, coll. Michael Kurz M. aruncella -genitalia, prep.-no. 809, M. Kurz: Slovenia, Karst, Wippach valley, Nanos, 600 m, 1998.05.25, leg. Helmut Deutsch, coll. Michael Kurz M. calthella -genitalia, prep.-no. 961, M. Kurz: Salzburg, Flachgau, Thalgau, Stilles Tal, 1987.05.29, leg. Zeller/Kurz, coll. Michael Kurz M. paykullella -genitalia, prep.-no. 811, M. Kurz: Piemonte, province of Cuneo, Bersezio, 1973.07.21, leg. J. Klimesch, 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

Externally, the species is nearly indistinguishable from other unmarked species of the genus, although it is one of the smallest. Due to its restricted distribution however, there are only two other similar species that are likely to occur in Foresta umbra, i.e. Micropterix aruncella (Scopoli, 1763) and Micropterix calthella (LinnÚ, 1761). Whereas the latter is normally easily recognizable by the purple colouration of the forewing base, females of M. aruncella can be separated with certainty only by genitalia examination. Males of M. aruncella are characterized by their silvery fasciae, which are missing in M. garganoensis. The male genitalia of M. garganoensis are very characteristic and often not even a mazeration of the abdomen is necessary for determination. Female genitalia are less characteristic, but usually M. aruncella can be distinguished by the typical sternite IX and, like M. calthella, by the long receptaculum seminis.

Phylogeny: The male genitalia show some overall similarity to Micropterix paykullella (Fabricius, 1794), of which we also know an unmarked form from the south-western Alps. If this similarity indicates a closer relationship however, remains unknown due to the lack of DNA-data.

Worth knowing:

Sources:

Heath, J. 1960b. Two new species of Micropteryx (Lepidoptera: Micropterygidae); Estratto dal Bolletino della SocietÓ Italiana, Vol. XC, no. 7 - 8: 129 - 133.
Kurz, M. A. & M. E. Kurz 2000ľ2013. Naturkundliches Informationssystem. ľ URL: http://www.nkis.info [online 30 October 2013].

Publication data:

history:
Kurz Michael: 2009.02.09
Kurz Michael: 2011.09.23
Kurz Michael: 2012.11.07
Kurz Michael: 2013.10.28
Kurz Michael: 2013.10.30
Document reviewed by:
not reviewed: 2013.10.30
Document released by:
Kurz Michael: 2013.11.07

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