Aagaardia, a New Holarctic Orthoclad Genus (Diptera: Chironomidae)

Diagnoses of all stages of the new genus Aagaardia are given. The genus includes A. sivertseni (Aagaard), originally described in Eukiefferiella Thienemann, from Norway and Finland and described in all stages; A. protensa sp.n. from Finland and A. triangulata sp.n. from Turkey described as male imag...

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Bibliographic Details
Published in:Aquatic insects 2000-07, Vol.22 (3), p.177-196
Main Author: Soether, O A
Format: Article
Language:English
Subjects:
Aagaardi
Aagaardi longicalcis
Aagaardi protensa
Aagaardi sivertseni
Aagaardi triangulata
Aagaardia
Chironomidae
Finland
Freshwater
Norway
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Description
Summary:Diagnoses of all stages of the new genus Aagaardia are given. The genus includes A. sivertseni (Aagaard), originally described in Eukiefferiella Thienemann, from Norway and Finland and described in all stages; A. protensa sp.n. from Finland and A. triangulata sp.n. from Turkey described as male imagines; and A. longicalcis sp.n. from Canada described in both sexes. The male imagines share bare eyes, strong punctation on wings, bare squama, extended costa, triangular gonostylus and two groups of extremely strong and sclerotized virga. The pupa and the female genitalia show relationship with Paratrissocladius Zav[rcirc]el, while the larva is very similar to the larvae of Psilometriocnemus Sæther and Platysmittia Sæther. Parsimony analyses suggest that Aagaardia forms the plesiomorphic sister genus to the rest of the Heterotrissocladius group combined.
ISSN:0165-0424
1744-4152
DOI:10.1076/0165-0424(200006)22:3;1-I;FT177