HEMIPTERA HETEROPTERA. 149 



J Fore lobe of the prothorax with four stout conical 



spines. Cheeks obtuse at the tips. 

 § Fore lobe of the prothorax with four yellowish spines. 

 Side angles of the hind lobe with a long spine. 

 Spine ol the sculellum erect, very long. Antennae 

 black. ------ luteoguttatus. 



§§ Fore lobe of the prothorax with four black spines. 

 Side angles of the hind lobe with a short S|>ine. 

 Spine of the scutellum erect, rather short. First 

 and second joints of the auteunae, or at least the 

 first, yellowish. - - - - ater, opaciventris. 



\l Fore lobe of the prothorax with four small tubercles, 

 which are alike it in colour, those in the middle 

 sometimes obsolete. Cheeks elongated into a 

 spine. Side angles of the hind lobe of the pro- 

 thorax attenuated into a short yellowish spine. 

 Spine of the scutellum short, stout, erect. - nitidiventris, 



angularis. 



ff Fore lobe of the prothorax with two lobes of variable 

 length in the disk before the middle, and very 

 frequently with a spine or tubercle on each side. 

 J Ante-ocular part of ihe head longer than the post- 

 ocular part. Cheeks acutely elongated at the 

 tips in front. Fore lobe of the prothorax with 

 two slender long or rather long spines in the disk. 

 Sides behind the middle with a distinct small 

 tubercle. Side angles of the hind lobe with a 

 long spine. Spine of the scutellum erect, very 

 long. Spines of the prothorax yellowish, or at 

 least so at the base. Fore femora unarmed. 

 Spongy furrow of the fore tibiae long, one-third or 

 a little less than half as long as the tibiae. 

 § Spine of the scutellum at the base, spots of the head, 

 of the thorax, of the pectus and of the uuder side 

 of the abdomen black. - - _ - festivus. 



§§ Head, thorax, pectus and under side of the abdomen 

 black, unspotted. Spine of the scutellum black, 

 pitchy or yellowish pitchy at the tip. - - davispinus. 



XI Cheek-, obtuse, rounded on the inner side in front. 

 § Fore femora beneath unarmed or very minutely 

 spinulose. 



X Spongy furrow half as long as the fore tibiae. - ochripennis. 



XX Spongy lurrow less than half as long as the fore 

 tibiae. 

 o Fore wings various in colour; membrane black or 

 brown, or brownish yellow; veins like the wings 

 in colour. 



-+• Head and rostrum brown or black, alike in colour. 



++ Spines of the proihoiax and of the scutellum bkick 

 or blackuh piceou>, alike in colour. Fore wings 

 testaceous or with testaceous stupes. 



*** Antennae black; second joint paitly yellowish white 

 or yellowish testaceous. Discal spines of the fore 



