92 Mr. David Sharp on the 



oblong impression on the metasternum and first abdominal seg- 

 ment : the apical ventral segment is prominent, and broadly 

 but vaguely impressed. The female is of less elongate form, and 

 has the breast unimpressed. 



Nagaski, in April : a dozen examples. 



Trachyphl(eosoma = {Trachyphloeops, Roel.), n. syn. 



Trachyphloeosoma, Wollaston, Ann. Nat. Hist., iv., 



1869, p. 414 ; Trachijphlceops, Eoelofs, Ann. Soc. 



ent. Belgique, xvi., 1873, p. 165. 



I can find very little to distinguish as species the St. 



Helena Trachyphlaiosoma setosum, Woll., from the 



Japanese Trachyphlceops setosus, Roel., and as genera I 



can see no distinctions. It therefore becoraes necessary 



to change the name of the latter species as being later. 



The genus has only a superficial resemblance with 



Trachijphlaeus, next to which it is usually placed. 



1. Trachyphloeosoma roelofsi, n. n. 

 Trachyphlceops setosus, Koel., t. c, xvi.,p. 166, pi. ii., fig. 5. 

 Nagasaki, in March : apparently very rare. 



GROUP IV. 



Episomus, Schonherr. 



Episomus, Schonherr, Disp. Meth., 1826, p. 126; 

 Pascoe, J. Linn. Soc. Zool., xi., p. 163. 



1. Episomus turritus. 



Lagostomus turritus, Schonh., Gen. Cure, i., p. 613; 

 Episomus turritus, Roelofs, Ann. Soc. ent. 

 Belgique, xvi., p. 164. 



This species has been, after several misconceptions as 

 to its position, referred to Episomus. It may be pro- 

 bably separated as a distinct genus (with E. mundus), 

 but this may be left undecided at present. 



E. turritus appears to be a common insect in China, 

 and is probably not rare in the Southern parts of Japan. 

 One of Mr. Lewis's specimens is labelled *' found only on 

 Aralia maximowiczi." It is a very variable insect in 

 colour, size, and, to a less extent in sculpture. I have it 

 from various localities in China, including Kiu Kiang 

 (Pratt) and Shanghai. 



