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

Stigmella naturnella (Klimesch, 1936)

(zoological nomenclature: valid name, available)

General information:

Nepticula naturnella Klimesch, 1936: 205.
Type locality: South Tyrol, Naturns near Meran
Type: Lectotype : Italy, Teriolis merid., Naturns near Meran, e.l. 5.10.34, J. Klimesch, Zucht 72, gen. prep. KL0232, in coll. ZSM, Munich

Synonyms, misspellings, wrong determinations, etc.:
Astigmella dissona Puplesis, 1984: 112. Type locality: Russia, Primorye, 20 km E of Ussuriysk, Gornotayezhnoye. Junior subjective synonym.

Habit:

Description of adults: Examined: Original description by Klimesch (1936). Wingspan: 4.2-4.5 mm. Frontal tuft of head rusty yellow in both sexes; collar and eyecaps whitish; antennae not reaching medial fascia; thorax blackish; forewings elongate, blackish with somewhat blueish gloss; medial fascia very narrow, somewhat broader in , silvery, slightly oblique; distal part of wing without gloss; fringe whitish-grey (), respectively, white (; hindwings dark grey; abdomen blackish.

Distribution:

The species is locally distributed and rare in central Europe. Furthermore, it occurs throughout Russia to the far East (Ellis 2020).

Biology:

S. naturnella inhabits xerothermic biotopes. Two generations per year have been reported, with mines in June and at the end of September (Klimesch 1936).

Stages in development:

     
Mines on Betula pendula      
Picture from: Klimesch 1936
Detailed view
     

Description of early stages following Klimesch (1936) and Ellis (2020).

Egg. The egg is laid on the upper- as well as on the underside of a leaf.

Larva. The larva is very light greenish with green gut. The larvae mine the leaves of Betula pendula, as well as Betula pubescens. The mine is a relatively long gallery, partly contorted, but not at the beginning. The frassline ist very narrow throughout.

Pupa. The pupa rests in a delicate, white, but rough cocoon.

Diagnosis:

The species is characterized by its blackish forewings with a narrow medial fascia.

Worth knowing:

Sources:

Ellis, W. N. 2001-2020. Plant Parasites of Europe. Leafminers, galls and fungi. URL: http://bladmineerders.nl/ [online 2020.05.18].
Klimesch, J. 1936. Ein kleiner Beitrag zur Kenntnis der Nepticulidenfauna (Lep.) des Vintschgaues (Prov. Bozen). Stettiner Entomologische Zeitung 97: 194-211.

Publication data:

history:
Kurz Michael: 2020.05.18
not reviewed

Advertisement: