Ho Bin-Hong, Hu Fang-Shuo, Fikáček Martin
Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan. E-mail:
Department of Entomology, National Museum, Cirkusová 1740, Praha 9, Czech Republic.
Zool Stud. 2022 Dec 22;61:e80. doi: 10.6620/ZS.2022.61-80. eCollection 2022.
The Taiwanese fauna of the dung beetle genus Dejean, 1833 (Coleoptera: Scarabaeidae: Aphodiinae) is reviewed based on museum specimens and newly collected material. Four species, all endemic to Taiwan, are recognized, one of which is newly described here: sp. nov. Remaining species are diagnosed, compared with similar relatives from outside of Taiwan, and their distribution is mapped. We show that Taiwanese species form three distinct morphological groups, similar to species from Japan, SE Asia and Malay Archipelago, respectively, indicating a possible composite origin of Taiwanese fauna. The species occur in submontane and montane forests at altitudes of 700-2550 m including the secondary ones. Available data confirm their association with dung of various forest mammals (monkeys, muntjacs and serows), although the discovery of larvae in sifted forest leaf litter may indicate they can also develop in nutrient-rich substrate around the dung. The larva of sp. nov. is described in detail, based on the larval specimens associated with adults by DNA barcodes. Larvae of sp. nov. are similar to those of the European (Scopoli, 1763), with important differences only found on maxilla and abdominal apex.
基于博物馆标本和新采集的材料，对台湾地区蜣螂属（Dejean，1833）（鞘翅目：金龟科：类蜉金龟亚科）的动物区系进行了综述。确认了4个物种，均为台湾特有种，其中1个在此处新描述为新物种。对其余物种进行了诊断，与台湾以外的相似近缘种进行了比较，并绘制了它们的分布图。我们发现台湾物种形成了三个不同的形态类群，分别类似于来自日本、东南亚和马来群岛的物种，这表明台湾动物区系可能具有复合起源。这些物种出现在海拔700 - 2550米的亚山地和山地森林中，包括次生林。现有数据证实它们与各种森林哺乳动物（猴子、麂和鬣羚）的粪便有关，尽管在筛选的森林落叶层中发现幼虫可能表明它们也可以在粪便周围营养丰富的基质中发育。基于通过DNA条形码与成虫相关联的幼虫标本，对新物种的幼虫进行了详细描述。新物种的幼虫与欧洲的（Scopoli，1763）相似，仅在上颚和腹部顶端发现重要差异。
