Abstract

In 2017 a survey was conducted of the Drosophilidae on the remote Cook Islands: Rarotonga, Aitutaki and Mangaia in the Tropical South Pacific. A diverse range of collecting methods was implemented, at different elevations and in domestic, rural, and montane-forest habitats. Only two widespread species Drosophila ananassae and D. simulans have previously been reported from Cook Islands. Among the 8036 specimens collected, 12 species were found, one of which—Drosophila rarotongae sp. nov.—is described here as new; it is endemic to Rarotonga and found only in montane forest. Drosophila suzukii was absent. An unusual species close to Drosophila funebris was collected (one female); various measures revealed its morphological difference from Afrotropical and Palaearctic D. funebris specimens. Possible synonymies between Scaptodrosophila bryani and S. anuda, and between S. concolor and S. marjoryae were discovered and are discussed. Drosophila pallidifrons was found among D. sulfurigaster in very low frequency (1%).

 
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Bibliographic Data

Short Form
McEvey and Polak, 2021. Rec. Aust. Mus. 73(5): 153–170
Author
Shane F. McEvey; Michal Polak
Year
2021
Title
Drosophilidae (Diptera) of the Cook Islands
Serial Title
Records of the Australian Museum
Volume
73
Issue
5
Start Page
153
End Page
170
DOI
10.3853/j.2201-4349.73.2021.1770
Language
en
Date Published
24 November 2021
Cover Date
24 November 2021
ISSN
ISSN 0067-1975 (print); ISSN 2201-4349 (online)
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
TAXONOMY; BIOGEOGRAPHY; INSECTA: DIPTERA; OCEAN: PACIFIC
Digitized
24 November 2021
Available Online
24 November 2021
Reference Number
1770
EndNote
1770.enw
Title Page
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1770_complete.pdf
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