coleoptera. 345 



Sagra. 



The mandibles terminate in a sharp point. The ligula is profoundly 

 emarginate or bilobate. 



In some, the palpi are filiform, the eyes emarginated, the poste- 

 rior thighs very stout, and the tibiae arcuated. 



Megalopus, Fab. 



The anterior extremity of the head projecting in the manner of a 

 snoutj strong and crossed mandibles; the palpi terminated by an elon- 

 gated and very pointed joint; the ligula deeply cleft into two elon- 

 gated lobes; the body short, with a transversal, square, or trapezoi- 

 dal thorax. The antennae gradually enlarge towards the extremity, 

 or are terminated by an elongated club; their third joint is longer 

 than the second and fourth, and the four posterior legs are long, 

 slender, and arcuated. 



These Insects are peculiar to South America(l). The 



Sagra, Fab. 



Or Sagrae properly so called, originally designated by the name 

 q{ Jllurnse, are exclusively confined to certain parts of southern Afri- 

 ca, Ceylon and China. Their palpi are terminated by an ovoid joint, 

 the divisions of the ligula are short, the thorax is cylindrical, the 

 antennae are almost filiform, longer than the head and thorax, with 

 their inferior joints shorter than the others, and the four anterior 

 tibiae tolerably thick, but slightly elongated, angular and straight. 

 These Insects have a uniform but very brilliant colour, green, 

 golden, or a fulgid-red, with a slight mixture of violet(2). 



In the others, the palpi are thicker at the extremity, the eyes are 

 entire, and the thighs of nearly equal thickness. The body is almost 

 always elongated, narrow, slightly depressed or but little elevated, 

 and the thorax narrowed posteriorly, and almost always cordiform. 



Orsodacna, Lat. Oliv.: — Crioceris, Fab. 



Where the antennae are filiform and composed of obconical joints, 

 where the last joint of the palpi is merely a little larger than the 



(1) Besides Fabricius, Latreille, Olivier, Germar, and Dalman, see the excellent 

 Monograph of this genus, published by M . Kliig, and the observation on this genus 

 by Count Mannerheim, who, to the figures of certain species, has added some 

 very good ones of the parts of the mouth. 



(2) See Fab., and OUv., V, 90. 



Vol. III.— 3 T 



