100 MR. M. JACOBY ON THE [Feb. 1, 



oblique ridges, which continue between the antennae ; the lower part 

 of the face concave ; the penultimate joint of the palpi transversely 

 quadrate. Antennae rather robust, more than half the length of the 

 body, black ; the first joint thick and rather short, the second as 

 thick but one third shorter, the two following joints elongate and 

 thinner, the rest gradually and moderately dilated, longer than 

 broad. Thorax rather more than twice as broad as long, widened 

 at the middle, the sides perfectly straight, the anterior angles obliquely 

 cut, forming a tooth before the middle, the surface not visibly punc- 

 tured. Elytra slightly widened towards the middle, broadly and 

 rather obsoletely depressed below the base, the shoulders some- 

 what prominent ; the surface very closely and distinctly punctured, 

 reddish fulvous. 



IvALiA (gen. nov. Halticinorum). 



Body very convex, ovate. Antennpe with the seven last joints 

 transversely dilated. Thorax transverse, without grooves. Elytra 

 irregularly punctured ; the posterior femora strongly incrassate ; 

 posterior "tibiae stout, widened behind, deeply channelled, the edges 

 armed with several teeth, the apices with a long spine. Claws ajjpen- 

 diculate. Prosternum narrowly elongate ; mesosternum very trans- 

 versely shaped, widened at the middle. Anterior coxal cavities open. 



I am obliged to propose the present genus for the reception of 

 some small species of Halticidse having the general shape and 

 appearance of Apteropeda, but differing from that and the allied 

 genera placed by Chapuis in his 16th group by the irregularly 

 punctured elytra and the appendicnlate claws. 



IvALiA viRiDiPENNis, sp. nov. (Plate X. fig. 12.) 



Reddish fulvous; terminal joints of the antennae black; elytra 

 metallic green, finely and closely punctured, their apices very pointed. 



$ (?). Larger, more rounded, the apices of the elytra fulvous. 



Length |-1 line. 



Head impunctate, fulvous ; the frontal tubercles obsolete ; palpi 

 long and rather slender, the apical joint piceous. Antennae black, 

 the four lower joints testaceous, the third and fourth joints small, 

 equal, the following transversely dilated, pubescent. Thorax nearly 

 three times as broad as long, widened at the middle, the sides nearly 

 straight, the angles obsolete; surface extremely finely punctured, 

 fulvous. Elytra ovate, strongly narrowed and pointed at the apices, 

 the surface very closely punctured. Legs fulvous ; the posterior 

 tibife with three or four teeth at their margins. 



Bogawantalawa. 



In the specimen which I consider to be the female of this species 

 the general shape is more robust, and the elytra have their extreme 

 apices of a fulvous colour ; the teeth at the tibiae are not so plainly 

 marked; but other differences of importance I cannot find. 



IVALIA METALLICA, Sp. UOV. (Plate X. fig. 11.) 



Black or piceous below ; the four basal joints of the antennae 



