Although Morimus asper, in particular the ssp. funereus, is considered as widespread throughout Bulgaria, a current national mapping of the species is missing. Thus, here we present the first exhaustive study on the distribution of M. asper in Bulgaria. Our research combined 967 georeferenced presence records from scientific publications, from the museum collection of the National Museum of Natural History-BAS, as well as authors’ and citizen scientists’ field observations. An Ecological Niche Model (ENM) was generated using software MaxEnt to identify the potential distribution of the species based on niche suitability. The potentially suitable area for the species was 26% of Bulgaria (29 059 km2). The main predictor variables in M. asper’s ENM assessed by а Jackknife test were the distance to mixed Fagus-Carpinus forests, the mean forest age, the mean tree height, the maximal temperature during the hottest month and the altitude. The percentage contribution to the model of the first two variables was also the largest – respectively 40% and 11%. The remaining variables contributed less than 10% each. Furthermore, we recommend some changes to the current species monitoring methodology to the National Biodiversity Monitoring System.

中文翻译：

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保加利亚 Morimus asper（Sulzer，1776）sensu lato（鞘翅目，Cerambycidae）的首次详尽分布和栖息地建模

 虽然 Morimus asper，特别是 ssp。funereus 被认为在保加利亚广泛分布，但目前该物种的国家地图缺失。因此，我们在这里首次对 M. asper 在保加利亚的分布进行详尽的研究。我们的研究结合了来自科学出版物、国家自然历史博物馆 (BAS) 博物馆收藏的 967 条地理参考存在记录，以及作者和公民科学家的实地观察。使用 MaxEnt 软件生成生态位模型 (ENM)，以根据生态位适宜性识别物种的潜在分布。该物种的潜在适宜面积为保加利亚的 26%（29 059 平方公里）。通过 Jackknife 测试评估的 M. asper 的 ENM 中的主要预测变量是到水青冈-Carpinus 混合森林的距离、平均森林年龄、平均树高、最热月份的最高气温和海拔高度。前两个变量对模型的贡献百分比也是最大的，分别为 40% 和 11%。其余变量各自贡献不到 10%。此外，我们建议对国家生物多样性监测系统当前的物种监测方法进行一些改变。