Jururumberus, a new genus of Orthocladiinae (Diptera: Chironomidae) from Brazil

Abstract

Jururumberus n. gen. is erected based on the males of J. arapuca n. sp. from São Paulo State, in southeastern Brazil and J. uatuma n. sp. from the Amazonas in northern Brazil. The genus can be separated from other Orthocladiinae based on the combination of bare eyes, wing, and squama; frons U-shaped, extended ventrally; AR ≤ 0.3, antenna without apical seta; palp short, five-segmented, with sensilla clavata in subapical sensillum coeloconicum; no acrostichals; costa strongly extended; R 4+5 ending proximal to M 3+4 ; anal point narrowly triangular with microtrichia only, sitting high on tergite IX; and virga composed of two spines. Resumo: Jururumberus n. gen. é descrito baseado em machos de J. arapuca n. sp. do Estado de São Paulo, no sudeste brasileiro e J. uatuma n. sp. do Estado do Amazonas no norte brasileiro. O gênero pode ser separado dos demais Orthocladiinae com base na combinação dos seguintes caracteres: olhos, asas e squama nus; fronte em forma de 'U', extendido ventralmente; AR ≤ 0.3, antena sem seta apical; palpo encurtado, com cinco segmentos, com sensilas clavadas em uma sensila celocônica subapical; acrosticais ausentes; veia costal fortemente extendida; R 4+5 terminando proximal em relação a M 3+4 ; ponta anal estreita e triangular com apenas microtríquios, situada oralmente no tergito IX; virga composta de dois espinhos. Palavras-chave: Chironomidae, Orthocladiinae, Jururumberus, gênero novo, espécie nova,

Poxyaibamberus Andersen & Dantas, gen. nov. (Diptera, Chironomidae, Orthocladiinae) from Brazil

“…Many orthoclads encountered in Brazil do not readily fit into any described genus, and many new genera have been described. Several genera, namely Gynocladius Mendes, Sæther & Andrade-Morraye, 2005; Oleia Andersen & Mendes, 2007; Saetherocladius Andersen & Mendes, 2007; Saetherocryptus Andersen & Mendes, 2007; Saetherolabis Andersen & Mendes, 2007; Saetherops Andersen & Mendes, 2007; Lyrocladius Mendes & Andersen, 2008; Ubatubaneura Wiedenbrug & Trivinho-Strixino, 2009; Iporangomberus Mendes & Andersen, 2012; Pebapomberus Mendes & Andersen, 2012; Miambera Andersen & Mendes, 2012; Maximberus Andersen & Mendes, 2012; Jururumberus Mendes & Andersen, 2013; Uirassubrillia Mendes, Andersen & Pinho, 2013; Caaporangombera Andersen, Pinho & Mendes, 2015; Mariambera Andersen, Mendes & Pinho, 2015; and Urubicimbera Andersen, Pinho & Mendes, 2015 are so far endemic to Brazil ( Mendes et al 2005 , 2013 ; Andersen and Mendes 2007 , 2012a , 2012b ; Mendes and Andersen 2008 , 2012a , 2012b , 2013 ; Wiedenbrug and Trivinho-Strixino 2009 ; Andersen et al 2015a , 2015b , 2015c ). However, several of these genera are expected to be more widely distributed when the chironomid fauna of neighboring countries is better studied.…”