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 inopinata A. & Z. Laštuvka, 1991

(zoological nomenclature: valid name, available)

General information:

Stigmella inopinata A. & Z. Laštuvka, 1990: 197.
Type locality: Slovakia, Slovenský kras, Jablonov nad Turnou
Type: Holotype : Slovenský kras, Jablonov nad Turnou, e.l. VI 1989 (R 7.VI.1989, Spiraea media), leg. et coll. A. Laštuvka

Synonyms, misspellings, wrong determinations, etc.:


Description of adults (following Laštuvka & Laštuvka, 1990): Forewing length: 2.0-2.2 mm, 1.9-2.4 mm; number of antennal segments: 29-31, 23-25; head rusty yellow, eyecaps ochreous yellow; antennae, forewings, thorax, abdomen and legs unicolorous, almost black, intensively metallic shining; hindwings black-grey; underside lighter.


The species is known so far from Czechia, Slovakia, Georgia and Azerbaijan (Nieukerken 2017).


The species is bivoltine with larvae in June and September and adults in April and end of June till early July (Laštuvka & Laštuvka 1990).

Stages in development:

Egg. The egg is laid on the underside of a leaf of Spiraea media (Laštuvka & Laštuvka 1990).

Larva. The larva is light yellow. The mine starts with a narrow, straight corridor with regular frass line. It widens abruptly to a blotch with central frass deposition.


genitalia. Vinculum much concave; valve with truncated tip; distal extension of valve shortened, in ventral aspect behind valve; gnathos with extended horizontal element, with long distal and broad proximal extensions; uncus with two pegs (Laštuvka & Laštuvka 1990).

genitalia. Segment 8 with dense hairs; apophyses posteriores proximally sledgehammer-like widened; corpus bursae with medium-sized accessory sac with distinct ribs; proximal half of corpus bursae with distinct surface structure (Laštuvka & Laštuvka 1990).


Stigmella inopinata is distinguished from Ectoedemia spiraeae Gregor & Povolny, 1983, which also feeds on Spiraea media, by the absence of the silvery-white mid-fascia on the forewing and by its bivoltinism (E. spiraeae is univoltine only with larvae in autumn following Laštuvka & Laštuvka 1990).

Phylogeny: Following Laštuvka & Laštuvka 1990, the species seems to be related to members of the oxyacanthella- and paradoxa-species-groups, is distinguished readily however by the structure of the male and female genitalia.

Worth knowing:


Laštůvka, A. & Z. Laštůvka 1990. Stigmella inopinata sp. n. und Parornix mixta (Triberti) in Mitteleuropa (Lepidoptera). Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 38: 197-203.
Nieukerken, E. J. van 2017. Nepticulidae and Opostegidae of the world. - URL: http://nepticuloidea.info/ [online 2017.03.10].

Publication data:

Kurz Michael: 2017.07.12
not reviewed