Gynacantha apiaensis Fraser, 1927

Theischinger, Gunther, Marinov, Milen, Bybee, Seth, Jensen, Colin, Theuerkauf, Jörn & Rashni, Bindiya, 2020, The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae), Zootaxa 4778 (1), pp. 171-195 : 188

publication ID

https://doi.org/10.11646/zootaxa.4778.1.7

publication LSID

lsid:zoobank.org:pub:F938B2DE-5F81-4B1F-90CB-8A46B9DC4E20

DOI

https://doi.org/10.5281/zenodo.3846111

persistent identifier

https://treatment.plazi.org/id/03E54F30-DD6C-AC24-27BD-1F65FEB2F82B

treatment provided by

Plazi

scientific name

Gynacantha apiaensis Fraser, 1927
status

 

Gynacantha apiaensis Fraser, 1927

( Figs 2 View FIGURE 2 , 11 View FIGURES 3–11 , 21 View FIGURES 12–21 , 33c View FIGURE 33 , 36e, 36f, 36k View FIGURE 36 )

Gynacantha apiaensis Fraser, 1927: 35 .

Distribution. Hitherto known only from Samoa.

Holotype: ♂ ( BMNH), West Samoa, Apia; detailed high-resolution photographs studied.

Diagnostic characters: Postfrons apparently without T-mark. Both Hw with space between CuP and A1 basally expanded and with several double cells in proximal half. Denticles along posterior portion of genital fossa reduced almost to a single row, occasional single or paired denticles present in anterior part. Superior anal appendages sinuous, basally rather narrow, continuously widening for whole length and with apex blunt and not extended into a distinct point; inferior appendage about 1/3 the length of superiors, with lateral margins only slightly sinuous and apex rather narrow.

The only species of Gynacantha known from Samoa. Distinguished from all species of the group by (1) lacking a dark T-mark on the postfrons, (2) by having more double cells in proximal half of the space between CuP and A1 of Hw, (3) by the narrower (almost a single row) patch of denticles along posterior portion of genital fossa, (4) by markedly more sinuous and less pointed superior anal appendages and (5) by the subtriangular shape of the inferior appendage.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Odonata

Family

Aeshnidae

Genus

Gynacantha

Loc

Gynacantha apiaensis Fraser, 1927

Theischinger, Gunther, Marinov, Milen, Bybee, Seth, Jensen, Colin, Theuerkauf, Jörn & Rashni, Bindiya 2020
2020
Loc

Gynacantha apiaensis

Fraser, F. C. 1927: 35
1927