Mr. G. Lewis on Erotylidgeyy-om Japan. 57 



the base of the prosternum ; the mesosternum is more 

 coarsely punctured, and the abdomen is piceous. One speci- 

 men, evidently a variety, is obscurely 4-maculate. 



This insect is relatively much broader than D. zonaria ; the 

 humeral spot agrees fairly well with that of D. hipustulata^ 

 Thunb., from Europe and Siberia, but it is larger and 

 broader. 



I have only six specimens of this species — five (including 

 the variety) from Nikko, the other from Horobetzu, in Yezo. 



MiCROSTEENUS. 



Microstermis, Lewis, Ent. Mon. Mag. xxiv. p. 3 (1887). 



Form rather elongate, convex ; eyes granulate, moderately 

 prominent ; thorax with large punctures, leaving a space in 

 front of the scutellum smooth ; elytra finely punctate-striate, 

 pattern varied ; antenna rather robust, second and third joints 

 nearly same lengthy fourth to eighth moniliform, all same 

 length, eighth rather thicker, the club is compressed and 

 oval ; last joint of maxillary palpus but little enlarged ; pro- 

 sternum coarsely sculptured at sides, with the central process 

 raised, marginate and triangular, the median area more or 

 less smooth ; the mesosternum is very transverse, and, except 

 under a high power, looks like a margin to the metasternum ; 

 tarsi distinctly five-jointed, the fourth smaller than the 

 third, and not padded. In two species, M. Ulkei and higonius^ 

 the thorax is laterally sulcate, the furrow being deepest 

 anteriorly. 



Microsternus perforatus^ Lewis. 



Microstermis perforatus, Lewis, Ent. Mon. Mag. xxiv. p. 3 (1887). 

 Episcapha pei-forata, Lewis, I. c. p. 140 (1883). 



Very similar to M. Grotchi ; it is larger and darker in 

 colour, and the fascige are more defined, with the branch that 

 spreads upwards round the hamate pattern narrower, and the 

 humeral spot is larger and more rotundate. As in M. tricolor 

 and Crotchi the thorax is simply marginate at the sides, not 

 sulcate. 



Taken on Oyayama and at Yuyama, in Higo. Two 

 specimens. 



Microsternus Crotchi. 



Elongato-ovatus, piceo-brunneus, capite tenui et parce punctato; 

 thorace utrinque parum grosse punctato, ante scutellum Igevi ; 

 elytris tenuiter punctato-striatis, transversim bifasciatis ; antcnnis 

 pedibusque obscure nigris. L. 5 mill. 



