期刊
ZOOKEYS
卷 -, 期 293, 页码 77-89出版社
PENSOFT PUBL
DOI: 10.3897/zookeys.293.5133
关键词
Longhorn beetles; Malaysia; Indonesia; Sulawesi; Wallacea; taxonomy; biogeography
类别
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 H. blairi comb n.. that are lacking in the type species of Hexamitodera, H. semivelutina. As indicated by fundamental structural differences in the mandibles of Parandrocephalus and H. (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.
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