72 



CERAMBYCID.E. 



succeeding joints narrow and subcyliudrical, not serrate at apex 

 third slightly longer than the first or fourth and shorter than 

 the fifth. Prothorax transverse, a little \\ idened just before the 

 middle, armed there on each side with a sharp spine. Stridulatory 

 area on mesonotum with a shallow groove or depression along 

 the middle. Elytra broad, rather short, rounded at the apex, 

 completely covering the abdomen posteriorly. Front coxse some- 

 what transverse ; their acetabula strongly angulate ou the outer 

 side and closed posteriorly. Legs siuiilar in length and form to 

 those of Ajxitopliysis ; third tarsal joint cleft beyond the middle. 

 Intercoxal process of abdomen narrow, somewhat sharp in front. 

 Wing-venation differs from that of Oxymlrns by the absence of a 

 cell from vein A 1. 



This genus is closely related to Apatophysis, Chev. ; it differs 

 chiefly in the form and length of the antennae and the relative 

 proportions of the first four or five joints, also in the more complete 

 venation of its wings. The type species has a great resemblance 

 in form to some of the Prionince, and at first sight might be 

 mistaken for a species of that subfamily. 



67. Peithona prionoides, sp. n. 



Black ; bare of pubescence and dull above, very sparsely 

 pubescent and somewhat nitid on the 

 underside. Head strongly and very thickly 

 punctured, except at the apex of the clypeus, 

 along the channel between the antenual 

 supports and over a slightly depressed area 

 on the vertex, the last of these sparsely 

 punctured, the other two impunctate. An- 

 tennae subnitid ; fifth joint at the apex and 

 the succeeding joints for the greater part of 

 their length finely carinate in front, with 

 an elongated poriferous pit on each side of 

 the carina. Prothorax transverse ; strongly 

 and very thickly punctured over the middle- 

 of tiie disc, less thickly towards the sides, 

 almost impunctate around the lateral spines. 

 8cutellum broad, rounded behind, finely and 

 rather densely punctate except near its 

 base. Elytra i-ather strongly punctured, the 

 punctures separated by distinct intervals ; 

 each with two smooth dorsal lines. Epi- 

 sterna and lateral borders of metasternum strongly but not thickly 

 punctured ; the rest of the metasternum fine!)' and very sparsely 

 punctate ; the abdomen almost as finely but less sparsely punctate ; 

 the punctures both on the thorax and abdomen carry each a short 

 pale hair. Eirst joint of hind tarsus as long as the second and 

 third united. 



Length 23 ; hrcadtJi 10 mm. 



Hab. Sikhim (Jype, § , in coll. Oherthur). 



Fig. 27. 



Peithona prionoides, 



Gahan 



