Titimbera, a new genus of Orthocladiinae from South and Central America (Diptera: Chironomidae)

Abstract

Titimbera n. gen. is erected based on the males of three new species from South and Central America: T. amazonica n. sp. from the Amazon region, Brazil; T. titi n. sp. from Venezuela and T. laselvensis n. sp. from Costa Rica. The combination of bare eyes and wing membrane; antenna without strong apical seta; scalpellate acrostichals in mid scutum; costa strongly extended; R 4+5 ending opposite to M 3+4 ; Cu 1 strongly curved to slightly sinuous; anal point sitting high on tergite IX, nearly parallel-sided with bluntly rounded apex; and club-shaped to subtriangular gonostylus with distinct heel will separate the genus from all other orthoclads.Titimbera n. gen. é descrito com base em machos de três espécies novas das Américas Central e do Sul: T. amazonica n. sp. da região amazônica, Brasil; T. titi n. sp. da Venezuela e T. laselvensis n. sp. da Costa Rica. A combinação de olhos e membrana alar nus; antena sem forte seta apical; acrosticais escalpeladas no meio do escudo; costa fortemente estendida; R 4+5 terminando oposta a M 3+4 ; Cu 1 de fortemente curvada a levemente sinuosa; ponta anal surgindo da porção média do tergito nono, quase paralela lateralmente e com ápice arredondado e gonóstilo de clavado a subtriangular com distinta projeção separam o gênero de todos os outros ortocladíneos.

A revised, annotated checklist of Mexican non-biting midges (Diptera, Chironomidae)

“…Particularly in Orthocladiinae , several recently described genera like Colosmittia Andersen & Sæther, 1994, Litocladius Mendes, Andersen & Sæther, 2004, and Titimbera Andersen, Pinho & Mendes, 2015 might also occur in Mexico as they have all been taken in Costa Rica ( Andersen et al 2011a ; Mendes et al 2011 ; Andersen et al 2015 ). There might well be several undescribed genera in the subfamily.…”

Two new species of Lipurometriocnemus Sæther from Brazil (Diptera: Chironomidae, Orthocladiinae)

“…During the rainy season numerous small pools form, which are scattered on the forest loor. (EPLER, 1988;PINHO et al, 2013;OLIVEIRA et al, 2013;PINHO, 2014a;2014b;ANDERSEN et al, 2015a;2015b).…”