616 OORIX1NA. 



large, triangular, remote. Rostrum imarfciculated ; Labrum cross- 

 wrinkled. 



Thorax. Pronotum transverse, very short, subtriangular, pointed 

 in front. Scutellum small, triangular. Elytra soft, flexible ; Clavus 

 with a distinct trapezoidal piece at the base ; Cor mm ; the anterior 

 margin on the basal incrassated, shining and coloured like the disk. 

 Wings with 1 cell on the anterior margin, with a nerve projecting at 

 the end. Sternum ; Prosternum short, laterally bilobed, the lobes 

 quadrangular ; Mesosternum short, transverse, anteriorly deeply 

 excised ; Scapulce linear, oblique ; Metasternum small, produced into 

 a triangular xyphus ; Pleurae trapezoidal, without suture ; Para- 

 pleura wanting. Legs; 1st pair, coxae oblong, stout, somewhat 

 compressed, as long as the thighs ; tibiae ; in the $ clavate, the base 

 curved ; tarsi ; in the $ articulated to the tibia3, oblique-oval, com- 

 pressed, ciliated beneath, without apical claw; in the ? anchylosed 

 with the tibia?, rhomboidal, with 1 setaceous claw ; 2nd pair, coxae 

 |rd the length of the thighs, compressed ; thighs simple, elongate ; 

 tibice slender, |rd the length of the thighs ; tarsi rather longer than 

 the tibise, 2-jointed, with 2 straight, setaceous claws ; 3rd pair, coxce 

 i shorter than the thighs, compressed; thighs clavate, base and 

 apex narrowed ; tibice and tarsi as in Corixa, the latter dilated ; above 

 on the external margin densely pilose, the 2nd joint \ the length of 

 the 1st, with 1 short claw. 



Abdomen as in Corixa. 



Species 1. SIGARA MINUTISSIMA. 



NOTONECTA MINUTISSIMA, Lin. E. S. 905 (1761) ; S. N. 713, 3 (1767). 



SIGARA MINUTA, Fab. S. R. iv, 105, 6 (1803) ; Leach, Lin. Soc, Trans, 

 xii, 14 (1817); Fall. Hem. Suec. i, 179, 1 (1829); 

 Burm. Handb. ii, 188, 1 (1835) ; Fieb. Ent. Mon. 13, 

 1, tab. 1 (1845) ; H. Schf. Wanz. ix, 46, fig. 907 

 (1850); Fieb. Gen. Hyd. 29, 20, tab. 4, D (1851) ; 

 Flor, Khyn. Liv. i, 803, 1 (1860) ; Fieb. Europ. Hem. 

 89, 2 (1861). 



COHIXA MINUTISSIMA, H. Schf. Norn. Ent. i, 63 (1835). 



Grayish-yellow or dark gray. 



Head yellowish-white, with a brown or reddish- brown central 

 streak. 



