Oecetis的O.avara组被正式定义为包括4个描述的物种,O.avara(Banks),O.分离(银行),O.elataDenning&Sykora,和O.MetlacenisBueno-Soria,15个新物种OecetismarquesiBueno-Soria,以前被认为是O.avara集团的成员,被视为物种组的不确定,但在目前的工作中也被重新描述和处理。此处描述的新物种(及其各自的分布)包括:O.acciptrina(哥斯达黎加,巴拿马,厄瓜多尔),O.agosta(墨西哥),O.angularis(危地马拉至厄瓜多尔),O.Apache(美国SW),O.campana(厄瓜多尔),O.收缩塔(墨西哥到厄瓜多尔,委内瑞拉,和特立尼达),O.Houghtoni(北美),O.maritza(哥斯达黎加),O.mexicana(墨西哥到厄瓜多尔),O.patula(危地马拉,尼加拉瓜),O.Protrusa(墨西哥至厄瓜多尔),O.sordida(墨西哥,美国,加拿大),O.tumida(哥斯达黎加),O.uncata(哥斯达黎加),和O.verrucula(墨西哥至哥斯达黎加)。还提供了该物种的钥匙。
The O. avara group of Oecetis is formally defined to include 4 described species, O. avara (Banks), O. disjuncta (Banks), O. elata Denning & Sykora, and O. metlacenis Bueno-Soria, and 15 new species. Oecetis marquesi Bueno-Soria, previously considered a member of the O. avara group, is treated as incertae sedis to species group, but is also redescribed and treated in the current work. New species described here (with their respective distributions) include: O. acciptrina (Costa Rica, Panama, Ecuador), O. agosta (Mexico), O. angularis (Guatemala to Ecuador), O. apache (SW USA), O. campana (Ecuador), O. constricta (Mexico to Ecuador, Venezuela, and Trinidad), O. houghtoni (North America), O. maritza (Costa Rica), O. mexicana (Mexico to Ecuador), O. patula (Guatemala, Nicaragua), O. protrusa (Mexico to Ecuador), O. sordida (Mexico, USA, Canada), O. tumida (Costa Rica), O. uncata (Costa Rica), and O. verrucula (Mexico to Costa Rica). A key to the species is also provided.