208 MR. H. W. BATES ON THE 



The genus PsepTiactus, as Harold observed, is allied to Trago- 

 soma. The genus of the Tragosominae group to which it 

 approaches the nearest is S ar mi/ d us, Vascoe. 



^GOSOMA snficuM, White. 



Found in Tezo and in Central Japan. 



Fam. Cerambtcidje. 



Megasemum qtjadricostulatum:, Kraatz, Berl. ent. ZeitscJir. 

 xxiii. (1879) p. 97. 



Chiuzenji, and South Yezo. Common in July and August. 

 Described by Kraatz from East Siberia. Japanese examples are 

 generally larger than the size (24 millim.) given by Kraatz, 

 averaging 27 millim. 



AsEMUM AMUEENSE, Kraatz, Deutsch. ent. Zeitschr. xxiii. 

 (1879) p. 97. 



Nikko. 



Kraatz's brief description agrees vpith the Japanese specimens 

 as far as it goes ; but, if his species be really the same, the differ- 

 ences from the European A. striatum seem more important than 

 he allows, the elytra being relatively more elongated and the 

 thorax conspicuously different in its moderately rounded and not 

 angulated sides. 



Teteomum ltjriditm, Linn. Syst. Nat. ed. xii. p. 634. 



Tokio. One large specimen, long. 18 millim. The species is 

 found throughout ■N'orthern and Central Europe and Siberia to 

 the coast of Manchuria. 



Neocerambyx cheysothrix, Bates, Ann. Sf Mag. Nat. Hist. 

 ser. 4, xii. p. 152, $ . 



S . A f oemina diff'ert tantum antennis corpore fere duplo 

 longioribus, articulisque 3-5 apice incrassatis. 



Tokio. 



The 3rd-5th joints of the antennae are moderately clavate or 

 thickened at their apices, the 5th slenderer than the two others 

 and slightly longer than the Srd. 



Neocerambtx Batesi, Harold, Alhandl. Nat. Ver. Bremen, 

 iv. p. 295 (1875). 

 Japan. 

 The description, drawn up from a male example, fits almost 



