238 INSECTS OP THE CAIRNS DISTRICT, NORTHERN QUEENSLAND. 



along the middle of each. The meso- and metasterna are black, 

 the coxse and half the thighs are yellow, the rest black ; the 

 abdomen is a nitid black with the apex of each segment bright 

 yellow. 



Length, 4 lines. 



Hah. — Mossman River. 



49. Selenurus annulatus. 



This species much resembles the last. The chief differences are 

 as follows : — The antennae are inserted each on a yellow spot ; the 

 thorax has a large square black or brown patch in the middle of 

 the anterior half. The elytra are black at the base, yellow for 

 some distance behind, the yellow colour extending backwards 

 along the suture, black for some distance further, and yellow on 

 the tip of each elytron ; the dehiscent apices are more rounded 

 and less acuminate than in the preceding species. The abdomen is 

 ringed and spotted on each side with yellow. The legs are long, 

 slender and ringed with yellow. 



Length, 4 lines. 



Mob. — Mulgrave River. 



^i->* 



50. Selenurus viridipennis. 



Head black, minutely striolate, a small yellow tubercle at the 

 insertion of the antennse, a slight depression on the forehead, and 

 a deep corrugated impression between the eyes. Thorax red, 

 flatter than in the last species and not so much longer than broad, 

 and uneven on the suiface with a black patch in the centre of the 

 disk. Elytra broader than the thorax, narrow and dehiscent at 

 the apex, nearly as long as the body, of a dark, dingy green colour, 

 and very densely and minutely punctate, with a veiy fine raised 

 longitudinal line in the middle of each elytron. The legs, the 

 middle of the sterna, and the apical segment of the abdomen are 

 black, the rest of the under surface is yellow. 



Length, 5 lines. 



Hah. — Russell River. 



