CERAMBYCIDiE. 133 



part of the head and are ciliated excepting on the hind margin 

 of the narrow part : the thorax is contracted in front and be- 

 hind, the central part is rounded, and has from eighteen to 

 nineteeen elevated parallel longitudinal ridges. The antennae 

 on the inside at the tips of each joint, are somewhat dilated and 

 rounded. Elytra with the suture slightly produced at the end 

 beyond the obliquely truncated tips. 



1. Rhytidodera Bowringii, n. s. PL IV. f. 1. B.M. 



R. fusca, elytris singulis plinimis maculis ochraceis lineatim or- 

 dinatis, corpore subtus pedibusque pilis cinereis tectis. 



Head above the labrum punctured, between the antennas 

 ridged and hairy ; behind the eyes roughly punctured, the punc- 

 tures running together. The thorax in front and behind trans- 

 versely ridged, between these ridges and the numerous longitu- 

 dinal ridges of the middle portion are several scattered yellowish 

 hairs. Scutellum covered closely with yellowish hairs. Elytra 

 closely punctured, the punctures often running together, and 

 with many scattered greyish yellow hairs and linear spots of yel- 

 lowish hah- arranged in five longitudinal lines, the spots near 

 the base often wanting, and from the middle to the tip arranged 

 as it were in four transverse bands. Antennae covered with a 

 close brownish pubescence : under side of body and legs covered 

 with adpressed grey hairs. 



Length 13 lines. 

 Hab. China (Hong Kong) (J. C. Bowring, Esq.). 



70. TRIRACHYS. 



Trirachvs, Hope, Proc. Ent. Soc. 1841, p. 61 : Trans. Ent. Soc. 

 iv. 11. 



1. Trirachys orientalis. 



Trirachvs orientalis, Ht 



Ent.' Soc. iv. 11. 

 Hab. China (Chusan). 



Trirachvs orientalis, Hope, Proc. Ent. Soc. 1841, p. 61 ; Trans. 

 Ent. Soc. iv. 11. 



X 71. CRIODION. 



Criodion, Serv. Ann. Soc. Ent. Fr. ii. 571. 

 Cerambyx (Stenocorus), p., Germ. 



