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 igaloensis Amsel, 1951

(zoological nomenclature: valid name, available)

General information:

Micropteryx igaloensis Amsel, 1951: 417-418
Type locality: Montenegro, Hercegnovi, Igalo
Type: Holotype :Montenegro, Igalo, 8.5.1938, H.G. Amsel, GU 808 H.G.Amsel ; in coll. LNK

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

 
: Albania, Budishte, Brigje, 2012.06.03, leg. et coll. Christof Zeller : Montenegro, between Niksic and Krstac, 2011.06.07, leg. J. Neumayer, coll. Michael Kurz : Montenegro, Cetinje, 1908.07, leg. Hans Rebel, coll. NHMW  
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
 

Scheme of wing pattern:

Description of adults: Examined: 7 , 1 . Forewing length: 2.9 - 3.5 mm, 4.0 mm; head black-brown, vestiture of hair-like scales on the head dirty yellow; antennae 5/6 (), respectively, 3/5 () of forewing length; thorax bronzy golden, sometimes with a purple tinge; tegulae purple violet; forewings purple violet; a broad bronzy golden fascia along the outer margin, tapering towards inner margins, leaving only the outermost tip of the wing purple; markings whitish golden to golden, delicately bordered bronzy golden: At 1/5 a broad, triangulate spot at inner margin, extending across 2/3 of the wing width; at 2/5 a semicircular costal spot; at nearly 1/2 a triangular spot at inner margin, its tip reaching into centre of wing, sometimes anastomizing with spot at 2/5 to form a complete fascia; at 3/5 a small costal spot, sometimes enlarged, similar to costal spot at 2/5 and sometimes fusing with costal spot at 3/4 along costa; at nearly 3/4 an inwardly oblique, more or less quadrangular spot from costa to centre of wing; fringe bronzy golden, whitish outwards; hindwings bronzy golden, especially apically tinged purple; fringe bronzy golden, light golden outwards; legs and abdomen brown, golden shining.

Remarks: Individuals from the vicinity of Dubrovnik and Baska Voda (south Dalmatian coast) with uniformly golden colouration and without any markings have been confirmed to belong to this species by genitalia examination.

Distribution:

Following Heath (1965), M. igaloensis is known only from Montenegro. Karsholt & Nieukerken (2011) erroneously report the species from Slovenia instead of Montenegro. The investigated specimens are from southern Croatia, Montenegro and Albania. The vertical distribution is documented from about 400 - 950 m a.s.l. so far (Kurz & Kurz 2013).

Biology:

The species inhabits clearings and edges of open woodland and bushes on rocky, calcareous ground. Here, the animals have been found during daytime, one of them on blossoms of Rosa canina agg., in competition to Micropterix amsella Heath, 1975. Flight time of the imagines is from May to July (Kurz & Kurz 2013).

Stages in development:

The early stages are unknown.

Anatomy:

 
-genitalia, GU 808, H.G.Amsel, HOLOTYPE: Montenegro, Herceg-Novi, Igalo, 1938.05.08, leg. Amsel, H.G, coll. LNK, Karlsruhe -genitalia, GU 808, H.G.Amsel, HOLOTYPE: Montenegro, Herceg-Novi, Igalo, 1938.05.08, leg. Amsel, H.G, coll. LNK, Karlsruhe -genitalia, prep.-no. 985, M. Kurz: Albania, Budishte, Brigje, 490 m, 2012.06.03, leg. et coll. Christof Zeller  
Picture from: © Kozlov 1989, modified
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
 

Genitalia. Uncus moderately long, slender, with rounded apex; tegumen slender, elongate; beneath uncus, a basally bent, rod-like structure with hair-like setae at distal end; accessory claspers rod-like, very slender, at tip with 3 strongly modified, T- or Y-shaped, thickened setae; at about 1/ of their length, accessory claspers with a single, strongly modified, undulate seta at lower margin; valvae long, slender, medially constricted and bent upwards; spoon-like distal end at inner surface with 7-10 short, thickened, straight setae at lower margin and several long, hair-like setae; valvae postbasal with one very long, somewhat stout seta at the inner surface.

Diagnosis:

Within its restricted distribution range, M. igaloensis may be mistaken only for Micropterix amsella Heath, 1975. The latter also may have an interrupted fascia at 1/2, but misses the bronzy golden outer margin and has a bronzy golden inner margin. Normally, the species is also somewhat smaller than M. igaloensis. Regarding the uniformly golden individuals, see diagnosis there. In the male genitalia, both species are markedly different from each other.

Phylogeny: So far, we do not know of any close relatives of M. igaloensis. A morphological analysis of the male genitalia however, suggests some affinities to Micropterix kardamylensis and its allies. DNA-data however, are not yet available to support this assumption.

Worth knowing:

Sources:

Amsel, H. G. 1951. Una raccolta di Microlepidotteri della Dalmazia meridionale. Redia 36: 411-422.
Heath, J. 1965b. Ergebnisse der Albanien-Expedition 1961 des Deutschen Entomologischen Institutes, 33. Beitrag, Lepidoptera: Micropterigidae. – Beiträge zur Entomologie 15: 641–647.
Karsholt, O. & E. J. van Nieukerken 2011. Micropterigidae. In - Karsholt, O. & E. J. van Nieukerken (eds.). Lepidoptera, Moths. – Fauna Europaea version 2.4., http://www.faunaeur.org [online 17 November 2011].
Kurz, M. A. & M. E. Kurz 2000–2013. Naturkundliches Informationssystem. – URL: http://www.nkis.info [online 14 November 2013].

Publication data:

history:
Kurz Michael: 2008.12.11
Kurz Michael: 2010.01.09
Kurz Michael: 2011.11.17
Kurz Michael: 2011.11.27
Kurz Michael: 2012.02.25
Kurz Michael: 2012.11.22
Kurz Michael: 2013.11.14
Kurz Michael: 2013.11.16
Kurz Michael: 2013.12.27
Kurz Michael: 2014.01.03
Kurz Michael: 2015.05.14
Kurz Michael: 2015.10.29
not reviewed

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