Abstract
We describe a new autumnal caddisfly species Chaetopteryx bucari sp. n. from 8 localities in the Banovina region of Croatia. We also present molecular, taxonomic and ecological notes (emergence, sex ratio and seasonal dynamics) on the new species and discuss the distribution of Chaetopteryx species in general and the Chaetopteryx rugulosa group in particular. Based on Bayesian phylogenetic analysis Chaetopteryx rugulosa schmidi was separated from the clade containing the other subspecies of Chaetopteryx rugulosa. Thus the subspecies Chaetopteryx rugulosa schmidi is here raised to species level, Chaetopteryx schmidi, as it was described originally. We further present distribution data on rare species in the genus Chaetopteryx in Croatia.
Highlights
The genus Chaetopteryx belongs to a small number of caddisfly genera with adults that are adapted to low air temperatures and emerge in autumn or winter, mostly from October-January
In the Bayesian phylogenetic tree based on mtCOI sequences the C. rugulosa group species clustered into 4 strongly supported clades (Figure 2)
We could confirm the hypothesis that Chaetopteryx bucari is a distinct species
Summary
The genus Chaetopteryx belongs to a small number of caddisfly genera with adults that are adapted to low air temperatures and emerge in autumn or winter, mostly from October-January. The larvae of most species live in small headwater streams and springs. This genus is distributed in Europe and parts of Asia (e.g., Asia Minor, Iran) (Malicky 2004, Lodovici and Valle 2007, Sipahiler 2010). A interesting species group in the genus is the Chaetopteryx rugulosa group. This radiation consists of 6 species and 3 subspecies: Chaetopteryx rugulosa rugulosa Kolenati, 1848; Chaetopteryx rugulosa mecsekensis Nógrádi, 1986; Chaetopteryx rugulosa noricum Malicky, 1976; Chaetopteryx rugulosa schmidi Botosaneanu, 1957; Chaetopteryx clara McLachlan, 1876; Chaetopteryx euganea Moretti & Malicky, 1986; Chaetopteryx goricensis Malicky and Krušnik, 1986; Chaetopteryx irenae Krušnik & Malicky, 1986 and Chaetopteryx marinkovicae Malicky and Krušnik, 1988 (Malicky 2004)
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