Eur. J. Entomol. 106 (1): 119-144, 2009 | DOI: 10.14411/eje.2009.016

A review of the genus Zavrelia (Diptera: Chironomidae)

Torbjørn EKREM, Elisabeth STUR
Norwegian University of Science and Technology, Museum of Natural History and Archaeology, NO-7491 Trondheim, Norway;

In this paper we review the taxonomy of the genus Zavrelia Kieffer, Thienemann & Bause and present emended generic diagnoses of all major life stages. Illustrated keys to larvae, pupae, adult males and females are presented as well as descriptions of four species new to science. Zavrelia species are only recorded from the northern hemisphere and comprise in total ten small to minute species. The following life stages and species are described: Larva, pupa, adult male and adult female of Zavrelia aristata sp. n., Zavrelia hudsoni sp. n., Zavrelia pentatoma Kieffer & Bause and Zavrelia sinica sp. n.; pupa and adult male of Zavrelia casasi sp. n.; and adult males of Zavrelia clinovolsella Guo & Wang and Zavrelia tusimatijea (Sasa & Suzuki). Zavrelia atrofasciata Kieffer and Stempellina paludosa Goetghebuer are proposed as new junior synonyms of Zavrelia pentatoma and lectotypes of Zavrelia nigritula, Zavrelia pentatoma and Stempellina paludosa are designated.

Keywords: Chironomidae, Zavrelia, generic diagnosis, keys, taxonomy, immature stages

Received: September 30, 2008; Accepted: November 6, 2008; Published: March 10, 2009

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