Perger Robert
Colección Boliviana de Fauna. Casilla 8706, La Paz, Bolivia.
Zookeys. 2013 Apr 19(293):77-89. doi: 10.3897/zookeys.293.5133. Print 2013.
The genera Parandrocephalus Heller, 1916 and Hexamitodera Heller, 1896 are reviewed and redescribed. Based on the combination of chromatic sexual dimorphism, velvety pubescence on the whole dorsal body and distinctly developed carina on the elytra, Parandrocephalus blairi Bentanachs & Vives, 2009 is transferred to Hexamitodera. A new subgenus, Sulcognatha Perger, is instituted to accommodate mandible, head and metasternal modifications in Hexamitodera blairi comb. n. that are lacking in the type species of Hexamitodera, Hexamitodera semivelutina. As indicated by fundamental structural differences in the mandibles of Parandrocephalus and Hexamitodera (Sulcognatha) blairi comb. n., the exaggerated secondary sexual traits and open procoxal cavities in both taxa are presumably the result of convergent evolution. Contrary to Bentanachs & Vives (2009), the presence of the two Parandrocephalus species in Sundaland and the endemism of Hexamitodera on Sulawesi agree well with the zoogeographical separation of both areas by the Wallace line.
对1916年的侧头甲属（Parandrocephalus Heller）和1896年的六瘤甲属（Hexamitodera Heller）进行了综述和重新描述。基于体色性二态性、整个背部体表具天鹅绒状柔毛以及鞘翅上明显发育的隆线等特征的组合，2009年的布莱尔侧头甲（Parandrocephalus blairi Bentanachs & Vives）被转移到六瘤甲属。设立了一个新的亚属，即沟颚甲亚属（Sulcognatha Perger），以容纳布莱尔六瘤甲（Hexamitodera blairi comb. n.）在下颚、头部和后胸的形态变化，而这些变化在六瘤甲属的模式种半绒六瘤甲（Hexamitodera semivelutina）中并不存在。正如侧头甲属与布莱尔六瘤甲（沟颚甲亚属）在下颚基本结构上的差异所表明的那样，这两个类群中夸张的次生性状和开放的前胸基节窝可能是趋同进化所致。与本塔纳克斯和维韦斯（2009年）的观点相反，巽他大陆存在两种侧头甲属物种以及六瘤甲属在苏拉威西岛的特有性，这与华莱士线对这两个地区的动物地理分隔非常吻合。
