Orr Albert G W, Dow Rory A, Steinhoff Philip O M
Environmental Futures Research Institute; Griffith University; Nathan; Australia.
Naturalis Biodiversity Center; P.O. Box 9517; 2300 RA Leiden; The Netherlands; Institute of Biodiversity and Environmental Conservation; Universiti Malaysia Sarawak; 94300 Kota Samarahan; Sarawak; Malaysia.
Zootaxa. 2024 Jul 26;5486(3):301-337. doi: 10.11646/zootaxa.5486.3.1.
The final stadium larvae of the following four species of south-east Asian Chlorocyphidae are described and compared: Aristocypha fenestrella (Rambur), Heliocypha biseriata (Selys), Libellago hyalina (Selys) and Sundacypha petiolata (Selys), including both sexes for the latter two species. Excepting one L. hyalina specimen from Brunei, identified by supposition based on habitat, all specimens were identified by comparing and matching the mitochondrial marker COI with that of known adult specimens from Sarawak, Brunei and several localities throughout tropical Asia. The specimens presented close matches with all adults in this gene. An assessment of the efficacy of this method of identification is provided, noting that in some cases close species cannot be separated by bar-code matching and ultimate determination is partially based on known distributions of adults. Some aspects of the relationships among genera revealed by the genetic analyses are also discussed. In addition, an exuvia of Libellago lineata (Burmeister) from northern Thailand, identified by supposition, is partially described for the purpose of comparison with L. hyalina. For the morphological analysis the unique features of chlorocyphid anatomy are discussed, and some new terminology is introduced. Overall, the morphological analysis revealed numerous clear differences between the four species studied, and comparisons with available literature suggest that some of these may be characteristic of their genera. It is also evident that in some cases clear interspecific differences occur within genera. It is however concluded that a generic level larval key for the Oriental region Chlorocyphidae based on morphology may never be attainable, although local generic or even species level keys addressing the fauna of limited geographic areas may be possible in many places, especially as the larvae of more species come to be known and described in detail.
窗翅色蟌（Aristocypha fenestrella (Rambur)）、双纹色蟌（Heliocypha biseriata (Selys)）、透明色蟌（Libellago hyalina (Selys)）和柄翅色蟌（Sundacypha petiolata (Selys)），其中后两种还包括了雌雄两性。除了一个来自文莱的透明色蟌标本，其依据栖息地推测鉴定外，所有标本均通过将线粒体标记细胞色素氧化酶亚基I（COI）与来自砂拉越、文莱以及热带亚洲各地已知成虫标本的该基因进行比较和匹配来鉴定。这些标本在该基因上与所有成虫都有紧密匹配。文中对这种鉴定方法的有效性进行了评估，并指出在某些情况下，近缘物种无法通过条形码匹配区分，最终鉴定部分基于成虫的已知分布。还讨论了遗传分析揭示的属间关系的一些方面。此外，为了与透明色蟌进行比较，对一个来自泰国北部、推测鉴定为线纹色蟌（Libellago lineata (Burmeister)）的蜕皮进行了部分描述。在形态学分析中，讨论了色蟌科昆虫解剖学的独特特征，并引入了一些新术语。总体而言，形态学分析揭示了所研究的四种物种之间存在许多明显差异，与现有文献的比较表明，其中一些差异可能是它们所属属的特征。同样明显的是，在某些情况下，属内存在明显的种间差异。然而得出的结论是，基于形态学为东洋区色蟌科编制一个通用水平的稚虫检索表可能永远无法实现，尽管在许多地方编制针对有限地理区域动物群的地方属级甚至种级检索表可能是可行的，特别是随着更多物种的稚虫被详细了解和描述。
