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 johanssonella A. & Z. Laštuvka, 1997

(zoological nomenclature: valid name, available)

General information:

Stigmella johanssonella A. & Z. Laštuvka, 1997: 70.
Type locality: Croatia, Istria, Rabac
Type: Holotype : Croatia, Istria, Rabac, ex.l. IX.1995, leg. Laštuvka, Ostrya carpinifolia, in coll. A. Laštuvka, Prostejov, Czech Republic

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

Description of adults: (Laštuvka & Laštuvka 1997) Wingspan 4.2 - 6.7 mm; frontal tuft orange-yellow; collar whitish-yellow; forewings very variable, from ochreous yellow, covered more or less with dark brown scales, to dark brown; cross fascia ochreous yellow, sometimes indistinct; apical fringe ochreous grey-brown; hindwings light grey.

Distribution:

The species is known from Italy, Austria, Slovenia, Croatia, Bosnia and Hercegovina, Serbia, Bulgaria, Macedonia and Greece (Nieukerken 2018).

Biology:

Following Laštuvka & Laštuvka (1997), the species inhabits woods and bushy places. There are three or more generations per year.

Stages in development:

Larva. The larva is yellowish. It feeds in the leaves of Ostrya carpinifolia (Laštuvka & Laštuvka 1997).

Mine. The mine is very similar to that of Stigmella microtheriella (Stainton, 1854). It often leads along the veins, especially in the distal part. At the beginning, it is almost completely filled with frass, in the second half there are narrow clear margins.

Diagnosis:

Externally, the species is very similar to Stigmella floslactella (Haworth, 1828), which does not feed on the same foodplant however and mostly is somewhat lighter. Stigmella zelleriella (Snellen, 1875) also shows some overall similarity, but feeds on different species of willows and does not overlap in distribution with S. johanssonella.
In the -genitalia, S. johanssonella differs from both especially in the arrangement of cornuti in the aedeagus, as well as in the form of the uncus. In the -genitalia, there are distinct differences to S. zelleriella in the spination of the bursa copulatrix, whereas to S. floslactella, there is nearly no difference. The spination of the bursa copulatrix seems to be slightly coarser only.

Worth knowing:

Derivatio nominis: The species is named in honour of Roland Johansson, who has dealt with it already earlier (Laštuvka & Laštuvka 1997).

Sources:

Laštuvka, A. & Z. Laštuvka 1997. Nepticulidae Mitteleuropas. Ein illustrierter Begleiter (Lepidoptera), Konvoj, Brno, 229 pp.
Nieukerken, E. J. van 2018. Nepticulidae and Opostegidae of the world. - URL: http://nepticuloidea.info/ [online 2018.02.17].

Publication data:

history:
Kurz Michael: 2018.03.09
not reviewed

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