HEMIPTERA HETEROPTERA. 



37 



like the sides is red. Legs black, moderately long and slender. Wings 

 extending to the tip of the abdomen. Fore wings black ; curium red along 

 the interior border and along the exterior border; membrane whitish at the 

 tip. Length of the body 4 lines. 



a. Australia. Presented by the Entomological Club. 



AULACOPELTUS. 



Oncopeltus. 



Melanospilus. 



Genus 2. LYGJiUS, C. H. 533. 



Apterola, Mulsant and Rey, and Lygajodou, Puton, are included 

 in Lygauis. 



Prof. Stal has divided Lygseus into the following subgenera: — 



A. Scutellum very tumid, with a deep longitudinal 



keel. ..... 



B. Scutellum smooth or slightly tumid, with no 



furrow. 



a. Hind border of tie prothorax broadly bent; scu- 



tellum more or less tumid. - 



b. Hind border of the prothorax truncate. Scutellum 



flat; seldom slightly convex hindward. 

 * Fourth joint of the antennae much longer than the 



second. - Stalagmosxethus. 



** Second and fourth joints of the antennae about 

 equal in length, or the latter a little shorter 

 than the former. 

 f Prothorax with a keel extending to the fore 

 border. - 



ft Prothorax with no keel or with one not extending 

 to the fore border. 

 I Metastethium obliquely truncate hindward; hind 



angles acute, with rounded tips. 

 § Antennae and rostrum long, the former shorter by 

 a third than the body. - - . 



§§ Autennae and rostrum of moderate length ; the 



former shorter by about half than the body. 

 X First joint of the rostrum extending distinctly 

 beyond the tip of the proslethium. 

 XX First joint of the rostrum extending to or hardly 

 beyond the tip of the prostelhium. 

 JJ Hind angles of the metastethium about straight or 



obtuse, rounded at the lips. 

 § Head beneath or at least with the hucculi black, 

 these very seldom narrowly reddish-bordered. 

 Furrow from the odoriferous apertures slight, 

 Sometimes obsolete, its borders not or very 

 slightly tumid, their tips not connected. 

 Fuirow from the odoriferous apertures distinct, its 

 borders distinctly tumid, their tips connected. 

 o Outer border of the cerium slightly rounded in the 

 middle or behind the middle. 

 oo Outer border of the coriuin straight. 



Pyrrhobaphus. 



Graptostethus. 

 lvo.eosoma. 



X 



XX 



Sl'IJ.OSTKIIIUS. 



GrRAPTOLOMUB. 



Mblanostethds. 



