Abstract

Dilychnia (Lampyridae: Lampyrinae) is a poorly known Neotropical genus of lampyrid firefly. Descriptions of Dilychnia species were traditionally based on differences in colour pattern, which are usually not reliable for species discrimination. Here, we review and redescribe the genus Dilychnia and its species, after examining the type material of all species, and we present the first phylogenetic analysis for the group, including 70 morphological characters and 15 species. After the proposal of new taxonomic combinations, Dilychnia was recovered as monophyletic with high support. We provide a key to species identification, updated geographical ranges and illustrations of diagnostic features for all species. We transfer Lucidota propinqua and Photinus succensus to Dilychnia and describe the new species Dilychnia dumasi sp. nov. We report, for the first time, that these three taxa are nocturnal and flash with an orange-yellow light. Phenotypic diversity within the genus is most pronounced in characters involved in mate tracking (i.e. antennae, eyes and light organs).

中文翻译：

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萤火虫属Dilychnia（Lampyridae：Lampyrinae）的系统综述和系统发育，并记录了地理范围

摘要

Dilychnia（Lampyridae：Lampyrinae）是一种鲜为人知的萤火虫萤火虫属。传统上，对Dilychnia物种的描述是基于颜色模式的差异，而颜色差异通常对物种的辨别是不可靠的。在这里，我们在检查所有物种的类型材料之后，回顾并重新描述了Dilychnia属及其物种，并提出了该组的首次系统发育分析，包括70个形态特征和15个物种。在提出新的生物分类学组合后，Dilychnia在单一支持下被回收。我们为物种识别，更新的地理范围以及所有物种的诊断特征说明提供了关键。我们转移Lucidota propinqua和Photinus succensus到Dilychnia并描述了新种Dilychnia dumasi sp。十一月 我们首次报告这三个类群是夜间活动的，并以橙黄色的光闪烁。该属中的表型多样性在与伴侣追踪有关的字符（即触角，眼睛和发光器官）中最为明显。