the Coleopterous Family Erotylidce. (105) 481 

 Aulacochilus violaceus. 



Triplax violacea, Germ. Ins. Spec. Nov. 616 (1824). 

 Aulacochilus violaceus, Lac. Erot. 251. 



, Bedel, Aheille, v. i^.—An. S. E. Fr. 



1871, 284. 



Austria, Sicily. 



Aulacochilus mediocaBruleus. 



Aulacochilus mediocceruleus, Bedel, An. S. E. Fr. 1871, 285. 

 Philippines, Mindanas. 



Aulacochilus japonicus.* 



Aidacochilus japonicus. Crotch, Ent. Mo. Mag. ix. 189. 

 Japan. 



Aulacochilus (?) rhomboides.* 



Triplax rhomboides, Montrouz. Ann. S. Agr. Lyon. (2) vii. 74 

 (1855). 



Island of Woodlark. 



This will probably form the type of a new genus. 



Thonius. 



Lac, Erot. 252 {typ. pavoninus, Lac). 



Distinct from Cyclomorphus by the elongate thorax, and from 

 all others of this group by the coarsely granuUited eyes. 



No coxal line, meso- and meta-sternum very short ; thorax not 

 margined ; ventral process strongly margined. 



c5 with an impressed point in the middle of the first ventral 

 segment. 



Thonius pavoninus. 



Thoniiis pavonimis, Lac. Erot. 2-53. 

 Columbia. 



The female differs but little from the male; Lacordaire's de- 

 scription of the female evidently applies to a distinct species. 



Thonius maculatus. 



Thonius viaculUus, Giier. Icon. R. A. Ins. 308 (1846). 

 Columbia. 



