HEMIPTEUA HETEROrTERA. 83 



21. Largus concisus. 

 Fcem. Saturate rufus, ellipticus, robustus, capite rostro antennis pro- 

 ihorace anlico pectore abdomine pedibnsque nigris ; rostrum coxas 

 intermedias atlingens ; antennce corporis dimidio paullo longiores ; 

 scutellum et corium bast nigra ; vorium margine exleriore nigra ; 

 membrana albida. Var. /3. — Pectus ferrugineum ; venter strigis 

 utrinque transversis lanceolatis apiceque flavis. 



Female. Deep red, stout, elliptical, largely punctured. Head, rostrum, 

 antennae, fore division of prothorax, pectus, abdomen and legs black. Head 

 triangular. Eyes very prominent. Rostrum extending to tbe middle coxae. 

 Antennse a liltle more than half the length of tbe body; first joint longer 

 than the head; second hardly more than half the length of the first; third 

 shorter than tbe second ; fourth shorter than the first. Prolhorax with a 

 distinct transverse furrow near the fore border. Scutellum and corium black 

 at the base. Legs stout; fore femora wiih three spines beneath. Corium 

 with a black exterior border ; membrane whitish. Far. /3. — Pectus ferru- 

 ginous. Abdomen beneath with transverse lanceolate yellow streaks on 

 each side ; lip also yellow. Length of the body 6 lines. 



a. Amazon Region. Presented by W. W. Saunders, Esq. 



b. Demerara. Presented by F. Moore, Esq. 



c. Brazil. Presented by W. W. Saunders, Esq. 



d. e. Rio Negro. From Mr. Wallace's collection. 



22. Largus pulverulentus. 



Mas. Niger, fusiformis, robustus, cano iomentosus ; rostrum coxas inter- 

 medias attingens ; prothorax margine lateribusque posticis Jlavis ; 

 pedes ruji, tibiis tarsisque nigris ; corium Jlavum,nigro punctatum et 

 unimaculatum ; membrana nigra. 



Male. Black, fusiform, stout, with hoary tomentum. Head conical. 

 Eyes piceous, very prominent. Rostrum extending to the middle coxae. 

 First joint of the antennse about twice the length of the head. Prothorax 

 with a very slight transverse furrow at somewhat behind the middle; hind 

 part of each side and bind border pale yellow. Legs red, stout; tibiae and 

 tarsi black; fore femora beneath with two black subapical spines. Corium 

 pale yellow, thickly punctured with black; a large transverse black spot 

 in the disk beyond the middle. Membrane black. Length of the body 

 61—71 lines. 



a. Orizaba. From M. Salle's collection. 



23. Largus obtusus. 



Fcem. Niger, fusiformis, subtus cinereo tomentosus ; rostrum coxas 

 intermedias attingens; antennce corporis dimidio paullo longiores; 

 prothorax lufeo marginatus ; scutellum apice luientn ; corii casta 

 lutea ; membrana fusca, nigro venosa. 



Female. Black, fusiform, very finely punctured, with cinereous 

 tomentum beneath. Head triangular. Eyes very prominent. Rostrum 

 extending to the middle coxae. Antennse a iiltle more than half the length 



