HOMOPTERA. 103 



retracta ; facies parva. Scutellum trigouum, medione. Abdomen sub- 

 compressum, dorso subcarinato. Pedes sat validi ; tibiae posticae calcaribus 

 robustis. 



Body rather stout. Head and thorax shining, with extremely minute 

 transverse striae. Vertex more than twice broader than long, with an im- 

 pressed dot on each side; front short, abruptly and ahtiost horizontally 

 retracted ; face small. Scutellum triangular, of moderate size. Abdomen 

 slightly compressed and teeled above. Legs rather stout; hind tibiae with 

 stout spines, which are not very numerous. 



DaRMA BIPUNCTATA. 



Nigra, nilens, rubra varia ; abdomen luteum, suhtus testaceum, apice 

 nigricans; tibice rufescen les ; posticce apice nigrcB ; tarsi postice basi 

 pallide iestacei ; al(e anticcB picea, gutta discali nigra, margine 

 apicali nigricanle, striga marginali albida venis punctatis ; posticce 

 nigro-fusccB. 



Blaclf, shining, varied with dark red. Abdomen luteous, testaceous 

 beneath, blackish at the tip. Legs black; tibiae reddish ; hind tibiae black 

 towards the tips ; hind tarsi pale testaceous towards the base. Fore wings 

 piceous, with a black discal dot; apical border blackish, with the exception 

 of a whitish marginal streak; veins punctured. Hind wings blackish 

 brown. Length of the body 4 lines; of the wings 10 lines. 



Monte Video. 



Genus TROCNADA., 



GyponcE afEnis. Corpus validum, convexum, striis transversis minimis. 

 Caput breve ; frons plana, subrotunda, sulcis transversis lateralibus ; facies 

 dilatata. Scutellum magnum, transverse sulcatum, apicem versus lanceo- 

 latum. Pedes validi ; tibiae posticae calcaribus pluvimis robustis. AIeb 

 anticaB subrugulosee, apud costam convexae, margiue apicali perobliquo 

 subtruncalo. 



Body stout, convex. Head and thorax with minute transvere striae. 

 Head short; vertex about four times broader than long; front flat, nearly 

 round, with transverse furrows on each side; face dilated. Scutellum 

 large, with a transverse furrow, lanceolate hindward, and extending to 

 one-third of the length of the abdomen. Legs stout; hind libite with 



