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

Cauchas albiantennella (Burmann, 1943)

(zoological nomenclature: valid name, available)

General information:

Adela albiantennella Burmann, 1943: 75-77.
Type locality: Northern Tyrol, Brenner area, 1400 - 1600 m.
Type: : Northern Tyrol, Brenner area, 1400-1600 m, leg. K. Burmann, in coll. TLMF, Innsbruck.

Synonyms, misspellings, wrong determinations, etc.:
Adela chrysopterella Küppers, 1980: Unnecessary replacement name (only necessary if Cauchas Zeller, 1839 and Nemophora Hoffmannsegg, 1798 are regarded as congeneric)

Habit:

     
: Umbria, near Foligno, Sellano, 1993.05.17, leg. H/Z/K, coll. Michael Kurz      
Picture from: Kurz Michael
Detailed view
     

Description of adults: Examined: 1 . Forewing length: 5.85 mm. Head black brown; face with black, frons and upper head with dark yellow, distant, hair-like scaling; eyes semiglobular, about 0.5 mm in diameter; distance of eyes (frontally) about 1 1/2 times the diameter of an eye; maxillary palpi minute, dark brown; labial palpi about 0.7 mm long, dark brown, directed ahead, with long black duft of ventrally directed, hair-like scales; distal segment of palpi with adpressed scales; proboscis dark brown; antennae about 1 1/2 () of forewing length, relativley thick, filiform, basal part dark brown, coppery shimmering, distal half shining white; thorax and tegulae bronzy golden shining; forewings bronzy golden shining, costal margin diffusely purple; Fringe bronzy golden; hindwings completely covered by scales, light grey with intensive purple shimmer, costal margin whitish from base to 2/3; outer and inner margin bronzy golden, like fringe; underside, like upperside, devoid of any markings, grey-brown, with coppery shimmer; fringe similar; legs dark brown, bronzy golden shining, midlegs with purple-violet shimmer; midtibia with a pair of long spurs at distal end.

Distribution:

Karsholt & Nieukerken (2010) report the species only from Austria and France, although the first finding in central Italy has been published by Kurz (2004) already some years earlier. Vertically, records are known up to 1600 m (Burmann 1943).

Biology:

In Italy, two imagines have been found at the edge of bushes on poor grassland along the roadside. At the type locality, Burmann (1943) has found the moths very locally on sunny , southwardly directed slopes with flowering meadows and scattered rocks as well as small stands of Larix decidua and Picea abies. The animals are on the wing in May (Kurz & Kurz 2010) and June, and have been found nectaring preferably on Arabis hirsuta (Burmann 1943).

Diagnosis:

 
C. albiantennella : Umbria, near Foligno, Sellano, 1993.05.17, leg. H/Z/K, coll. Michael Kurz C. rufimitrella : Salzburg, city of Salzburg, Freisaal, 1999.05.10, leg. Patrick Gros, coll. Michael Kurz C. rufifrontella : Burgenland, Neusiedlersee, Jois, 2008.04.20, leg. et coll. Heimo Nelwek  
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
Picture from: Kurz Michael
Detailed view
 

The species is very similar to, although normally distinctly larger than unmarked forms of Cauchas rufimitrella (Scopoli, 1763). Yet, it can easily be distinguished by the white distal half of the antennae. From Cauchas rufifrontella Treischke, 1833, C. albiantennella can also be distinguished by the white distal half of the antennae, which are also distinctly longer (about 1 1/2 times the forewing length in C. albiantennella compared to about 9/10 of the forewing length in C. rufifrontella ).Furthermore, the ground colour of C. rufifrontella is more greenish, mostly devoid of any purplish shimmer, the vestiture of hair-like scales on the head is more orange coloured, even in males, whereas in C. albiantennella the vestiture of hair-like scales is dominated by black scales, especially in males.

Worth knowing:

Sources:

Burmann 1943. Einige bemerkenswerte Kleinfalterfunde aus Nordtirol und Beschreibung einer neuen Adela-Art. Zeitschrift der Wiener Entomologischen Gesellschaft 28: 72-78.
Karsholt, O. & E. J. van Nieukerken 2010. Adelidae. In - Karsholt, O. & E. J. van Nieukerken (eds.). Lepidoptera, Moths. – Fauna Europaea version 2.2., http://www.faunaeur.org [online 13 July 2010].
Küppers, P.V. 1980. Untersuchungen zur Taxonomie und Phylogenie der Westpaläarktischen Adelinae (Lepidoptera: Adelidae), Dissertation, Wissenschaftliche Beiträge Karlsruhe, Verlag M.Wahl, Karlsruhe
Kurz, M. A. 2004. Cauchas albiantennella in Mittelitalien. Kurzmitteilungen - Naturkundliches Informationssystem. Now: Mitteilungen der Naturkundlichen Gesellschaft. http://www.nkis.info/MittnatGes/ [online 13 July 2010].
Kurz, M. A. & M. E. Kurz 2000–2010. Naturkundliches Informationssystem. – URL: http://www.nkis.info [online 13 July 2010].

Publication data:

history:
Kurz Michael: 2010.07.13
Kurz Michael: 2013.11.12
Kurz Michael: 2013.11.13
not reviewed

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