The genus Isostenosmylus Krüger, 1913 (Neuroptera: Osmylidae) is the most species-rich genus of lance lacewings in the Neotropical region. Seven species are newly described here (Isostenosmylus angustipennis, sp. nov., Isostenosmylus apaapensis sp. nov., Isostenosmylus barbatus, sp. nov., Isostenosmylus inca, sp. nov., Isostenosmylus jaguar, sp. nov., Isostenosmylus penai, sp. nov., Isostenosmylus triangulatus, sp. nov.). A neotype of Oedosmylus morenoi Navás, 1928 is proposed, the male of Isostenosmylus irroratus Ardila-Camacho et al., 2016 is newly described, and identification keys to males and females of Isostenosmylus species are provided. A morphological phylogeny and biogeographical analysis of the genus are also presented. Isostenosmylus is recovered as a monophyletic genus and species are divided in two main clades (named here as ‘bifurcatus’ and ‘pulverulentus’ clades); the greatest diversity of this genus is located in the Andean mountain range, where new studies should be focused on.

http://zoobank.org/urn:lsid:zoobank.org:pub:7AA1CED6-D30D-4DE5-A45A-86C2F038B915

IsostenosmylusKrüger属（Neuroptera：Osmylidae），是新热带地区物种最丰富的长矛草属，1913年。七种新此处描述（Isostenosmylus狭，属十一月，Isostenosmylus apaapensis属十一月，Isostenosmylus石竹，属十一月，Isostenosmylus印加，属十一月，Isostenosmylus美洲虎，属十一月，Isostenosmylus penai，SP十一月，等位基因。提出了一种新的Oedosmylus morenoiNavás型，1928年，Isostenosmylus irroratus的雄性Ardila-Camacho等，2016年新描述，并提供了对异骨鱼类物种的雄性和雌性的识别码。还介绍了属的形态学系统发育和生物地理分析。异骨鱼类作为单系属被恢复，物种被分为两个主要进化枝（在这里被称为“ bifurcatus”和“ pulverulentus”进化枝）。该属最大的多样性是在安第斯山脉，应该重点研究新的山脉。

http://zoobank.org/urn:lsid:zoobank.org:pub:7AA1CED6-D30D-4DE5-A45A-86C2F038B915