Lamellicorn Coleoptera of Japan. 113 
Elytris basi thoracis latitudine, medio paulo ampliatis, ad 
apicem obtusis, crebre fortiter punctatis, singulis costis 
tribus parum elevatis, secunda serie maculorum parvorum 
albidorum ornata, ad apicem macula albida& majore. 
Long. 4# lin.; lat. 23 lin. 
Hab.—Japan. Very common in all the islands. 
DYNASTID Z. 
by Xylotrupes dichotomus, Linn. 
Hab.—Phil. Is., China, Japan, Darjeeling. 
Phileurus chinensis, Falderm. 
Ph. chinensis, Fald. Mém. Ac. Petr. ii. 1835, p. 370. 
Hab.—China; Japan. 
CETONIID A. 
Rhomborrhina japonica, Hope. 
R. japonica, Hope, Trans. Ent. Soc. iii. 1841, p. 64. 
Hab.—Japan. Very common in all the islands. 
Rhomborrhina unicolor, Motsch. 
R. unicolor, Motsch., Etud. Ent. 1861, p. 8. 
Hab.—Japan. Less common than the preceding, but 
associated with it. 
Rhomborrhina polita, sp. nov. 
Nigra, nitida. Capite angusto. Thorace antice angus- 
tato, lateribus discrete punctato. Scutello fere levi. 
-Elytris elongatis, apicem versus angustatis, subtilius dis- 
crete punctulatis. Tibiis posticis intus longe fulvo-hirtis. 
Long. 13} lin. 
Allied to R. japonica, but much narrower. From 
R. nigra it is distinguished by its more elongate form, 
and less close punctuation. It most nearly resembles 
TRANS. ENT. SOC. 1875.—PART I. (MAY.) I 
