HEMIPTERA HETEROPTEEA. 33 



21. Largus CONC1SUS. 



Fcem. Saturate rufus, elliplicus, robustus, capite rostro antennis pru- 

 thorace antico pectore abdomine pedibusque nigris ; rostrum coxas 

 intermedias atlingens ; antenna; corporis dimidio paullo Ion g lores ; 

 scutellum el corium basi nigra ; corium margine exteriore nigra ; 

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

 utrinque transversis lanceolatis apiceque jiavis. 



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

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

 triangular. Eyes very prominent. Rostrum extending to the middle coxa). 

 Antennas a little more than half the length of the body; first joint longer 

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

 shorter than the second ; fourth shorter than the first. Prothorax with a 

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

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

 with a black exterior border; membrane whitish. Var. (3. — Pectus ferru- 

 ginous. Abdomen beneath with transverse lanceolate yellow streaks on 

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



a. Amazon Region. Presented by VV. 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 tomentosus ; rostrum coxas inter- 

 medias atlingens; prothorax margine laleribusque posticis Jiavis; 

 pedes rufi, tibiis tarsisque nigris ; corium Jlavum, nigro punctalum et 

 unimaculalum ; membrana nigra. 



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

 Eyes piceous, very prominent. Rostrum extending to the middle coxa?. 

 First joint of the antennae 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 hind border pale yellow. Legs red, stout ; tibia? 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 

 6£ — 7\ lines. 



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



23. Largus obtcsus. 



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

 intermedias atlingens; anlennce corporis dimidio paullo longiores; 

 prothorax luleo marginalus ; scutellum spice luteum ; corii costa 

 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. Antenna? a little more than half the length 



F 



