genera and species of Malacoderm Coleoptera. 405 



Eros militans, Kiesenw., according to the type in Mr. 

 Lewis' collection, is simply a rather faded female example 

 of this species. 



Lyponia delicatulus. 



Eros delicatulus, Kiesenw., Berl. Ent. Zeits., 1874, 

 p. 254 \ 



Nagasaki 1 ; Yuyama; Oyama; Miyanoshita. 



It is rather singular that Herr Kiesenwetter appears 

 not to have noticed the close affinity between this insect 

 and L. quadricollis. The thoracic sculpture is the same, 

 and the most striking difference (apart from its smaller 

 size and more delicate build) is that the 4th and 6th 

 interstices are raised, the former running into the 

 suture near the apex. 



Plater os cor acinus. 



Eros coracinus, Kiesenw., Berl. Ent. Zeits., 1874, 

 p. 257 \ 



Nagasaki 1 ; Kobe ; Yokohama ; Nara ; Nikko ; Sawara ; 

 Ontaki. 



Of this species Mr. Lewis brought home about a dozen 

 specimens, half of which seem to be of a larger and half of 

 a smaller form. The larger ones, which are of both 

 sexes, have the alternate interstices a little more distinct ; 

 in the smaller ones they are almost evenly raised ; these 

 are also greyer black, but the difference is altogether too 

 minute to be specific. 



The males have the eyes more globose and prominent ; 

 the abdomen is clearly of nine segments, the 8th only 

 appearing ventrally as lobes on each side of the 9th 

 narrow segment ; the 7th is not emarginate, but all the 

 plates are pubescent at their margins. 



There does not appear to be any very striking generic 

 difference between these species and New World Plate- 

 rotes ; yet I think the Eastern Tropical and African forms 

 might very conveniently be separated under the term 

 Planeteros (cf. Gorh., Ann. del. Mus. Civ. di St. Nat. 

 Genova., vol. xviii., 1883). 



