Cai Yan-Peng, Zhao Zong-Yi, Zhou Hong-Zhang
Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, University of Chinese Academy of Sciences, 1 Beichen West Rd., Chaoyang District, Beijing 100101, P. R. China; Email: unknown.
Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, University of Chinese Academy of Sciences, 1 Beichen West Rd., Chaoyang District, Beijing 100101, P. R. China; Email:
Zootaxa. 2015 Jun 8;3966(1):1-70. doi: 10.11646/zootaxa.3966.1.1.
Eight new species of the subgenus Microsaurus Dejean, 1833 of the genus Quedius Stephens, 1829 are described based on specimens collected in China, namely Q. aculeatus sp. nov., Q. acutulus sp. nov., Q. altus sp. nov., Q. capillus sp. nov., Q. perlucidus sp. nov., Q. postangulus sp. nov., Q. subwrasei sp. nov. from Sichuan and Q. arcus sp. nov. from Ningxia. The female of Q. songpanoides Smetana, 2009 is described for the first time. These new species belong to the Quedius euryalus group and the fauna of this species group is thus increased to 53 species. In addition, this paper reviews the taxonomic history of the Quedius euryalus group and reports the sexual dimorphism in the hind wing length, i.e. male with longer hind wings in many species of the Quedius euryalus group. Line drawings and color illustrations of adults and genitalia of the new species and some other ones are provided, along with a key to all the known species of the euryalus group.
基于在中国采集的标本，描述了步甲属（Quedius Stephens，1829）微步甲亚属（Microsaurus Dejean，1833）的8个新物种，即采自四川的尖刺步甲（Q. aculeatus sp. nov.）、锐刺步甲（Q. acutulus sp. nov.）、高步甲（Q. altus sp. nov.）、毛步甲（Q. capillus sp. nov.）、透明步甲（Q. perlucidus sp. nov.）、后角步甲（Q. postangulus sp. nov.）、亚沃氏步甲（Q. subwrasei sp. nov.）以及采自宁夏的弧步甲（Q. arcus sp. nov.）。首次描述了松潘步甲（Q. songpanoides Smetana，2009）的雌性形态。这些新物种属于广肩步甲组，该物种组的动物种类因此增加到53种。此外，本文回顾了广肩步甲组的分类历史，并报道了后翅长度的两性异形，即在广肩步甲组的许多物种中，雄性后翅较长。提供了新物种及其他一些物种的成虫和生殖器的线条图与彩色插图，以及广肩步甲组所有已知物种的检索表。
