LIST OF HOMOPTEEOUS INSECTS. 141 



dilated on each shoulder, keeled, compressed, and with an undu- 

 lating- impressed line on each side hiudward, attenuated towards the 

 lip, which is very acute, and extends some distance beyond the ab- 

 domen ; a brown dorsal line, black where it passes along- the keel. 

 Wings vitreous. Fore wings slightly lurid, with a black streak at 

 the tip of the costa. Length of the body 3 lines; of the wings 7 

 lines. 



a. Constaucia, Province of Rio. Presented by the Rev. Hamlet 



Clark. 



Genus ERECHTIA. 



Corpus breve, latum. Caput magnum. Prothorax antice 

 couvexus, antice subcariuatus, carinis tribus dorsalibus parallelis, 

 lateralibus abbreviatis. Pedes breviusculi, sat validi ; tibiae postica? 

 serraliB, latiusculae. Alae anticoe breviusculoe, areolis discalibus 

 distinciis. 



Body short, broad. Head large. Prothorax convex and 

 hardly keeled in front, with three parallel dorsal keels ; the lateral 

 pair abbreviated ; the middle one continued .to ihe acute tip. Legs 

 rather short and stout; hind tibiae serrated and rather broad. Fore 

 wings rather short; discal areolets distinct. 



Erechtia bicolor. 



Picea ; prothorax testaceo bifasciatus ; cornu posticum abdomen 

 perpauUo superans ; abdomen testaceum, fascia basali nigra; 

 pedes testacei, femoribus anticis basi piceis, tibiis piceo nota- 

 tis ; alee vitrece, venis pallidis ; anticce apices versus fusco 

 subnebulosce. 



Piceous. Prothorax with two pale testaceous bands, which are 

 united on each side; hind keel extending very little beyond the tip 

 of the abdomen. Abdomen testaceous, with a black band near the 

 base. Legs testaceous ; fore femora piceous towards the base ; a 

 piceous mark on each of the tibiae. Wings vitreous ; veins pale. 

 Fore wings slightly clouded with brown towards the tips. Length 

 of the body if line ; of the wings 3^ lines. 



a. Santaiem. From Mr. Bates' collection. 



