neir Colenptera from Maddf/nscar. 289 



PRIONID^. 



Hoiilulcres riir/icoll /'.<!, n. sp. 



Elongatus, parallelus, piceo-niger ; capite thoraceque crebre 

 fortiter nigosis, his lateribus acute quadrispinosis ; sciitello 

 subtiliiis ruguloso-pimctato ; elytris parum nitidis, fere parallelis, 

 circa scutellum nitidis parcius pnnctatis, hnmeris acute spinosis, 

 ? . Long. 21 lin., lat. 8 lin. 



Very close to H. sp/'nicoUis, from wliich it differs in having 

 the elytra more parallel, not expanded at the sides, and the head 

 (especially round the eyes) and thorax are decidedly more 

 rugose ; the spines also on the sides of the thorax are more 

 slender. 



CERAMBYCIDtE. 



Ari'!i//th)iiii.9, n. gen. 



General form somewhat that of EU(j)iioderma. Head very 

 similar to that of that genus, but with the autennal tubercles 

 more flattened and not divided in the middle, with only a very 

 slight spine at the vertex. Antennae about ^ longer than the 

 Avhole insect, slender, particularly towards the apex, slightly 

 pubescent beloAV. Thorax STib-cylindrical. Elytra rather flat 

 aboA'e, at their base twice as broad as the base of the thorax, 

 distinctly constricted a little before the apex, which, in con- 

 sequence, appears somewhat expanded. Femora very much 

 enlarged at the apex, compressed ; tibia? compressed. Abdomen 

 narrowed towards the apex. 



The position of this rather singular insect is somewhat doubt- 

 ful, but after a careful examination I am of opinion that it 

 shoiild be placed at the end of the EUgmodermiiuv. The 

 antennal tubercles are not, however, divided as they are in that 

 group, and in this respect it approaches more to the CallicliopsincB, 

 l)ut in all other characters it accords better with the former. 



Arrhythmns nKjofipeiinis^ n. sp. 



Elongatus, nitidus, niger, antennis articulis 1—1 1 plu- 

 minuRve flavescentihus ; capite thoraceque tenuissime griseos 

 puiiescentibus ; elytris crebre fortiter punctatis, dimidio apicah 

 anguste flavo-marginato, disco maculis duahus rotimdatis flavis ; 

 pedil)us flavis, femoribus apice nigris. $ . Long. 9 lin. 



