400 Mr. G. J. Arrow on the LameUicorn 



The species occurs also in Korea (Kang-hwo), at Shanghai, 

 and in Szechuen (Chin-fu-san). 



Lachnosterna niponensis, Lewis, is found also in Korea 

 (Fusan) and N. China (Chefn). 



Two closely related species, enumerated by Waterhouse as 

 Hoplusternus japonicvs, Har. and Melolontha japonica, Burm. 

 respectively, were brought in numbers by Lewis. Capt. Moser 

 has followed Waterhouse in assigning these names to the 

 two species, but, recognizing the species as congeneric, has 

 changed Harold's japonicus to haroldi, overlooking the fact 

 that Harold himself announced his insect to be the same as 

 Burmeister's. No one has yet pointed out the distinguishing 

 features between the two species, which are so close that it 

 is not always an easy matter to distinguish the females. 

 Tbe true H. japonicus, Burm., however, is distinguished by 

 the nearly black head, thorax, legs, and underside, the yellow 

 colour of the dorsal pubescence, which is erect and velvety 

 upon the pronotum, the opacity of the latter, and, in the 

 male, the strongly rounded and reflexed margin of the 

 clypeus and much produced pygidium. 



The original descriptions leave little doubt of Harold's 

 correctness in sinking his name as synonymous, and the 

 second species is therefore still nameless. It may be 

 called 



MeJol nt ha f rater, sp. n. 



Obscure castanea, omnino griseo-setosa, abdominis lateribus albo- 

 maculatis : corpus cylindricum, elongatnm, supra densissime 

 punctulatum ; pronoto subnitido, lateribus valde arcuatis, 

 angulis posticis acutis ; elytri utrius disco 3-costato ; pygidio 

 recte et obtuse acuminato ; processu sternali brevi, acuto : 



S , clypeo transverso, excavato, margine autica intcgra, levif-er 

 arcuata, clava antennali heptapViylla, longitudine 4-5-5 mm., 

 tibia antica acute bidentata ; pygidio subtus piano, nitido : 



2 , clvpeo brevi, marginis medio leviter indentato, clava antennali 

 brevi, bexaphylla, tibia antica 3-dentata. 



Long. 24-30 mm. ; lat. 12-15 mm. 



Hab. S. Japan : Nara, Kioto, Kii Wada, Kobe (June, 



July). 



It is rather more solid and robust than M. japonica, more 

 uniformly reddish in colour, and with the pubescence less 

 yellow. The pronotum is rather more shining and its hairy 

 clothing has not the velvety nature due to its erect arrange- 

 ment in M. japonica. The hind angles are rather less acute, 



