Discrimination of Uranotaenia species (Diptera: Culicidae) from Madagascar based on morphology and wing morphometric traits

Michaël Luciano Tantely (1) , Fano Jose Randrianambinintsoa (1, 2) , Antsa Rakotonirina (1, 3, 4) , Friederike Woog (5) , Sébastien Boyer (1, 6) , Romain Girod (1)

1 IPM - Unité d'Entomologie Médicale [Antananarivo, Madagascar]
2 ESCAPE - Epidémiosurveillance de protozooses à transmission alimentaire et vectorielle
3 Université d'Antananarivo
4 Institut Pasteur de Nouvelle-Calédonie
5 SMNS - Staatliches Museum für Naturkunde Stuttgart
6 Institut Pasteur du Cambodge

The genus Uranotaenia (Diptera: Culicidae) has been well documented in Madagascar where it includes 73 species, 89.4% being endemic. However, one problem is that most species are morphologically similar in the adult stage. Here, 713 Uranotaenia specimens collected in the tropical forests of Anorana and Maromizaha between 2008 and 2014 were examined. Using the dichotomous keys for the Uranotaenia fauna of Madagascar published in 2004, three species were identified: Uranotaenia neireti (220), Ur. alboabdominalis (110) and Ur. mayottensis (28). The other specimens (355) were not identifiable and were classified as Uranotaenia sp1. Using wing morphometry, the four taxa were classified into four morphogroups. Within the Uranotaenia sp1 group, specimens from the Anorana forest and those from the Maromizaha forest overlapped. This result suggests that wing morphometric traits could be a good marker to distinguish Uranotaenia species in Madagascar.

Mots clés: Diptera; Culicidae; Uranotaenia neireti; Ur. alboabdominalis; Ur. mayottensis; taxonomy; morphology; wing morphometry; Madagascar

Domaines: Sciences du Vivant [q-bio]

Michaël Luciano Tantely, Fano Jose Randrianambinintsoa, Antsa Rakotonirina, Friederike Woog, Sébastien Boyer, et al.. Discrimination of Uranotaenia species (Diptera: Culicidae) from Madagascar based on morphology and wing morphometric traits. Zootaxa, 2020, 4801 (1), pp.171-178. ⟨10.11646/zootaxa.0000.0.0⟩. ⟨pasteur-03209035⟩