198 Mr. G. Lewis on the 



fS. Rhomhoi'rhina Japonica, Hope. 



Rhomhorrhina japonica, Hope, Trans. Ent. Soc. iii. 1841, p. 64. 

 RJioniborrhina clypeata, Hope. 

 jRJiomhorrhina sqwammidifera, Thorns. 

 Rhomhorrhina glauca, Thorns. 



This variable species is extremely abundant, and on one 

 tree Mr. Pryer has taken 125 specimens in twenty-four hours. 

 The tliree species follow the cossus for the sake of the exuding 

 sap caused by the larvae. 



There is a beetle known to the Japanese as the Shikamushi, 

 or " stag-beetle ;" the horns are said to be fixed, and a speci- 

 men of DicranocephaluSy taken to Japan, has been identified 

 as resembling it. The Lucanidge are vulgarly termed 

 " scissor-beetles/' as their mandibles open and close. 



1. Cetonia confusiusana^ Thorns. 

 Cetonia confusiusana, Thorns. Tjpi Catonidarum, p. 28 (1878). 



The pygidium in the male is reflexed at the apex and very 

 convex, and resembles a boss in form ; but the female is only 

 transversely impressed, somewhat unevenly on both sides. 

 In colour this species varies from a deep crimson to bronze 

 and green, and is very common in S. Japan, but I did not 

 find it in Yezo. I believe the brighter examples have been 

 mistaken for G. speculifera^ Swartz, which has been hitherto 

 only found in China and the Philippine Islands. 



2. Cetonia submarmorea^ Burm. 

 Cetonia stibmarmorea, Burm. Handb. iii. p. 490. 



The male of this species has an abdominal groove. 



3. Cetonia brevitarsi's, Lewis. 



Cetonia hrevitarsis, Lewis, Ann. & Mag. Nat. Hist. 1879, iv. p. 463. 



This species is found in Japan, as far north as Kioto. The 

 pygidium is very slightly convex and superficially even, and 

 is quite distinct in form from that of C. confusiusana. There 

 is a series in the British Museum from Korea. 



4. Cetonia insperata^ Lewis. 

 Cetonia insperata, Lewis, Ann. & Mag. Nat. Hist. 1879, iv. p. 463. 

 I took about thirty examples in Yezo. Vries Island, 

 Chiuzenji, Nikko, Wada-toge are other localities for it. 



5. Cetonia Lenzi, Harold. 

 Cetonia Lenzi, Harold, Abh. Ver. Brem. v. p. 128 (1876). 

 The thorax in this species is raised longitudinally in the 



