40S On the Lamellicorn Coleoptera of Japan. 



propose, at least provisionally, to treat these four species as 

 belonging to a single genus, which must be called Chromo- 

 valgus. 



The species are C. peyroni, Muls., modiglianii, Kolbe, 

 fumosus, Lewis, and the new 



Chromovalyus Icetus, sp. n. 



Niger, squamis discoidalibus nigris et flavis sat dense vestitus, 

 squamis flavis pronoti in angulis posticis minus crebre aggre- 

 gates, elytrorum crebre ordinatis, vitta nigra sublaterali ab 

 humere fere ad apicem attingenti intus bis dilatata ; abdomino 

 toto pectorisque lateribus crebre flavo-squamosis, metasterni 

 medio parce setoso ; capite nitido, grosse punctato, parce setoso, 

 clypeo emarginato ; pronoto angusto, lateribus arcuatis, antico 

 crenatis, postice paulo contractis, angulis posticis obtusis, disco 

 antice acute bicarinato, carinis postice leviter approximatis, 

 usque medium haud productis ; scutello angusto, dense flavo- 

 squamoso ; propygidio et pygidio dense flavo-squamosis, illius 

 spiraculis acute spinosis ; tibia antica lato, dentibus 1°, 3°, 5° 

 acutis, 2° sat acuto, 4° parum elevato, obtuso, tarsis ( J ) longis 

 et gracilibus. 



Long. 6*5 mm. ; lat. 3 - 5 mm. 



Hub. Loo Choo Is. : Oshima (/. E. A. Lewis, May, 1913). 



This is a gaily decorated little insect, of which the greater 

 part of the surface is covered with round, closely-set scales, 

 varying in colour from pale yellow to bright orange, but 

 the head is free from scales, those of the pronotum are 

 mixed black and yellow (the latter becoming closer in the 

 hind angles), and each elytron has two black patches, united 

 externally by a longitudinal black band which extends from 

 the shoulder almost to the hind margin. 



In its general form it is like C. fumosus, Lewis, but it is 

 smaller and more brightly coloured. The tarsi are longer, 

 the second and fourth teeth of the front tibia are distinct 

 and not merely low ridges, and the spiracles of the pro- 

 pygidium are still longer. 



The Japanese Valgini are all large forms, and it is a 

 remarkable feature of the Valgini that, contrary to the 

 general rule, the tropical species are usually small, while 

 those occurring further north, although less numerous, are 

 of the largest size. 



