the Tenebrionidffi of Japan. 389 



with markedly lirate edges. In tlie female the ocular ridge 

 projects much less, and the thorax behind the neck is elevated 

 m the form of two ridges. 



I have only six specimens of this little species, and they 

 are all more or less thickly covered with a whitish squamosity. 



Ilah. Yuyama and Xikko. 



Diaperis niponensis^ Lew. 

 Diajyeris ui/wnensis, Lew. Ent. xi. 1887, p. 217. 



This species resembles a very large specimen of D. ho- 

 teli, L. 



IJab. Nikko, Mayebara, Jun.sai, and Sapporo. Commonest 

 in Yezo. 



Diaperis Lewi'sij Bates. 



Diaperis Leirisi, Bate.s, Ent. M. M. x. 1873, p. 14. 

 Diaperis rubrofascialus, Reit. 1879. 



llah. Nagasaki, Kumamoto, Miyanoshita, and Tokio; 

 Siberia (JReitter). 



Derispia, gen. nov. 



Body hemispherical, outline of the head, thorax, and elytra 

 together being circular ; tiie head relatively somewiiat laro-e, 

 eyes small, coarsely granulate, palpi large, terminal joint 

 oblong ; the thorax explanate laterally, widely incised to 

 receive the head, eyes visible from above ; the scutcUum tri- 

 angular, but widest at the base ; the elytra dilated at the 

 sides, and in structure very similar to those drawn for Leio- 

 chrinus sat:u7n(e (woodcut, fig. 2), but not quite so wide; the 

 prostcrnum rather narrow, truncate behind, slightly narrowed 

 between the cox?e; the mesosternum sauiU and tran.sverse; 

 the metasternum arched between the coxa3 j the anterior tarsi 

 short and pilose beneath, linear but rather robust, the claw- 

 bearing joint being as stout as the others, and the hind tarsus 

 has the basal joint long^ like those of Basanus and Scaphi- 

 dium ; the antenna? also rather stout, first joint larger and 

 longer than the second, third longer than the second and a 

 little constricted at the base, fourth stouter than the third and 

 equal in size to each of the six following, terminal joint 

 rather longer and oval. 



Type, Diaperis viaculipennis^ Mars. 



Leiochrinus coccinelloides, Westw., also belongs to this 

 genus, the type of Leiochrinus being L. discoidalis, Westw., 

 a very different insect. The species of this genus are appa- 

 rently very numerous in the eastern tropics ; I found six in 

 Ceylon. 



