. Bonn zoological bulletin. Zoology. Fig. 180. Distributions of Lobrathiwn species in China: L. excisissimwn (filled square); L. lamellatum (open diamond); L. dax- uense (filled circles); L. spathulatum (open triangles); L. schnelkei (filled diamond); L. demptum (filled triangle). what oblique series; interstices without microsculpture and glossy. Hind wings apparently fully developed. Abdomen distinctly narrower than elytra; punctation fine and moderately dense; interstices without apprecia- ble microsculpture and glossy, posterior margin of tergite VII with palisade fringe; tergite VIII with
. Bonn zoological bulletin. Zoology. Fig. 180. Distributions of Lobrathiwn species in China: L. excisissimwn (filled square); L. lamellatum (open diamond); L. dax- uense (filled circles); L. spathulatum (open triangles); L. schnelkei (filled diamond); L. demptum (filled triangle). what oblique series; interstices without microsculpture and glossy. Hind wings apparently fully developed. Abdomen distinctly narrower than elytra; punctation fine and moderately dense; interstices without apprecia- ble microsculpture and glossy, posterior margin of tergite VII with palisade fringe; tergite VIII without sexual di- morphism, posterior margin broadly convex in both sex- es. <$: sternites III-VI unmodified; sternite VII strongly transverse and with shallow median impression posteri- orly, pubescence unmodified, posterior margin distinctly and broadly concave (Fig. 272); sternite VIII approximate- ly as broad as long, median impression long and broad, anteriorly and posteriorly with few modified, short and stout black setae, posterior excision moderately broad and not very deep (Fig. 273); aedeagus mm long, ventral process symmetric, large (ventral view) and long, some- what domed and with short median spine ventrally (Figs 274-275). Comparative notes. Lobrathiwn demptum is readily dis- tinguished from all its congeners particularly by the shape and chaetotaxy of the male sternites VII and VIII, as well as by the distinctive morphology of the ventral process of the aedeagus. From L. hongkongense, L. configens, and L. mordens, it is additionally separated by the absence of Bonn zoological Bulletin 61 (1): 49-128 a bluish hue on the elytra, as well as by the shorter ely- tra. Distribution and natural history. The type locality is sit- uated in the northeast of Hubei province, very close to the border with Anhui province (Fig. 180). The specimens ap- pear to be slightly teneral. Additional data are not avail- able. Lobrathium tuberosum sp. n. (Figs 141, 181-186) Type mater
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