Acta Entomologica Musei Nationalis Pragae
2026
Volume 66 - Number 1
published on: 16th March 2026
Abstract: The immature stages of beetles (Coleoptera) remain poorly known, despite their importance for systematics, ecology, and applied research. To address this gap, the Immature Beetles Meeting (IBM) was established in Prague in 2007 and has since been held biennially. Over two decades, IBM has attracted a total of 455 visitors (206 individual participants) from 30 countries and hosted 168 presentations, creating an exclusive platform dedicated to beetle larvae and pupae. Here, we summarize the history, structure, and outcomes of IBM, highlighting its role in fostering collaboration, advancing methods, and promoting the study of beetle immatures within the global research community.Published online: 16th March 2026
Li Zechuan, Zheng Yuchen, Song Zhishun, Liu XingyueNew species and new data of the dragon lacewing genus Nipponeurorthus (Neuroptera: Nevrorthidae) from ChinaActa Entomologica Musei Nationalis Pragae 66(1): 13-36Abstract: The genus Nipponeurorthus Nakahara, 1958 is an endemic group of the dragon lacewing family Nevrorthidae, currently comprising 13 species from China and Japan. However, due to their rareness in nature, the species and distribution of Nipponeurorthus from China are still poorly explored. Herein we describe five new species of Nipponeurorthus from the Chinese mainland, i.e., N. ailao sp. nov. (China: Yunnan), N. flavipennis sp. nov. (China: Guangxi), N. kuanglu sp. nov. (China: Jiangxi), N. ningboensis sp. nov. (China: Zhejiang), and N. pallidipennis sp. nov. (China: Jiangsu). We also redescribe N. qinicus Yang, 1999, which has been poorly documented since its original description. A molecular delimitation of the Nipponeurorthus species based on the DNA barcodes was performed. An updated key to the species of Nipponeurorthus is also provided.Published online: 16th March 2026
Sasakawa Kôji, Suzuki Yôichi, Itô Hirotarôterostichus izurusanus sp. nov., an isolated and specialized species of the macrogenys species group (Coleoptera: Carabidae) discovered on a mountain on the edge of the Kanto Plain, Honshu, JapanActa Entomologica Musei Nationalis Pragae 66(1): 37-44Abstract: A new species, Pterostichus izurusanus sp. nov., belonging to the macrogenys species group of the subgenus Nialoe Tanaka, 1958 (s. lat.), is described. This species is currently known only from Mt. Izuru-san (Tochigi Prefecture, Japan), which is located on a narrow ridge that protrudes from a mountainous area towards the Kanto Plain; the mountainous area other than the ridge is occupied by P. macrogenys Bates, 1883, another member of the same species group. The origin and differentiation process of this new species are discussed, based on its distribution pattern, morphological characteristics, and morphology-based phylogeny. An updated key to species of the macrogenys species group is provided.Published online: 16th March 2026