Three new Neotropical species of Nilothauma Kieffer, 1921 (Diptera: Chironomidae)

¹ Department of Natural History, University Museum of Bergen, University of Bergen, P.O. Box 7800, N-5020 Bergen, Norway
² Instituto de Ecologia y Sistematica de Ciudad de la Habana, Carretera Varona 11835 e/Oriente y Lindero, La Habana 19, CP 11900, Calabazar, Boyeros, La Habana, Cuba

^* Corresponding author: linn.hagenlund@uib.no

Received: 26 January 2016
Accepted: 4 April 2016

Abstract

Nilothauma canaima n. sp. from Bolívar State in southeastern Venezuela, Nilothauma granma n. sp. from Granma Province in eastern Cuba and Nilothauma soka n. sp. from Amazonas State in Brazil are described and figured as males. N. canaima can be grouped with Nearctic Nilothauma verrucum Adam and Sæther, but can be separated based on its small size as it has a wing length <1.3 mm and an AR = 0.13. N. granma can be grouped with Nearctic Nilothauma babiyi (Rempel) and Neotropical Nilothauma matogrossense Mendes and Andersen, but can be separated from both as it has a wing with distinct, dark areas. N. soka can be grouped with Neotropical Nilothauma aripuanense Mendes and Andersen, but can be separated based on the shape of the superior volsella as it has a boot-shaped superior volsella with microtrichia only. A key is given to the males of Nilothauma from the New World.