Świętojańska Jolanta, Linzmeier Adelita M
Department of Biodiversity and Evolutionary Taxonomy; University of Wrocław; Przybyszewskiego 65; 51-148 Wrocław; Poland.
Universidade Federal da Fronteira Sul; Campus Realeza; Avenida Edmundo Gaievski 1000; P.O. Box 253; 85770-000 Realeza; PR; Brazil.
Zootaxa. 2024 Oct 9;5519(3):395-422. doi: 10.11646/zootaxa.5519.3.4.
The immature stages of Hybosa acutangula Spaeth, 1913, member of the tribe Cassidini Gyllenhal, 1813, are described in detail and compared with other members of Cassidini and Ischyrosonychini Chapuis, 1875 species. The eggs, oothecae and first instar larvae are described for the first time. The morphology of the immatures of H. acutangula, unusual for the species of the Cassidini tribe, was the impulse that initiated the research. The result of the comparative analysis is the conclusion that the morphological features of the immature stages of H. acutangula are a mixture of characters observed in representatives of the Cassidini and Ischyrosonychini tribes. The similarity to Ischyrosonychini may only be convergence, but it cannot be ruled out that there is a separate phylogenetic lineage within Cassidini, represented by H. acutangula. Verification of this hypothesis requires further research.
1913年的尖角龟金花虫（Hybosa acutangula Spaeth）是龟金花虫族（Cassidini Gyllenhal，1813）的成员，本文对其未成熟阶段进行了详细描述，并与龟金花虫族和1875年的粗角龟金花虫族（Ischyrosonychini Chapuis）的其他成员进行了比较。首次描述了其卵、卵鞘和一龄幼虫。尖角龟金花虫未成熟阶段的形态在龟金花虫族中不同寻常，这是开展此项研究的契机。比较分析的结果表明，尖角龟金花虫未成熟阶段的形态特征是龟金花虫族和粗角龟金花虫族代表所具有特征的混合。与粗角龟金花虫族的相似性可能只是趋同现象，但不能排除在龟金花虫族中有一个以尖角龟金花虫为代表的独立系统发育谱系。这一假设的验证需要进一步研究。
