LIST OF HOMOPTEROUS INSECTS. 121 



tinct testaceous marginal line, hardly convex along the costa, 

 rounded at the tips and at the interior angle ; exterior border 

 straight, very slightly oblique ; interior border tuberculale ; veins 

 and transverse veiulets very numerous. Hind wings white. 

 Length of the body 3 lines ; of the wings 9 lines. 



a. Adelaide. From Mr. Cuming's collection. 



Genus CYARDA. 



Caput thorace paullo angustius ; vertex transversus, subarcua- 

 tus; frons laevis, nitens, vix obliqua; facies lanceolata. Prothorax 

 transversus, subarcuatus. Alae anticae perangustas, basi sal lata3 ; 

 costa basi convexa, apicem versus peracutum recta ; margo exterior 

 brevissimus, perobliquus, subconcavus. 



Head a little narrower than the thorax. Vertex transverse, 

 slightly arched. Front very slightly oblique, smooth, shining. 

 Face lanceolate. Prothorax transverse, slightly arched. Fore 

 wings very narrow, except towards the base ; veins moderately nu- 

 merous, undulating towards the lip, where the wing is contracted ; 

 transverse veinlets very few ; costal veinlets numerous, moderately 

 long; costa convex for half the length from the base, straight from 

 thence to the tip, which is very acute ; exterior border very short 

 and oblique, slightly concave ; interior angle oblique, distinct. 



Cyaiida difformis. 



Mas. Testacea^ cano tomentosa, sublus alhida ; vertex suhcanna- 

 tus ; frons subtransversa, non carinata, marginihus non elevatis ; 

 prothorax non carinatus ; mesothorax carinis duahus indis- 

 tinctis; alcB anticce pallide virideSf venis nigricantibus ; pos- 

 ticcB subcinerece. 



Male. Testaceous, with hoary tomentum, mostly whitish 

 beneath. Vertex with a slight keel ; front a little broader than 

 long, not keeled, nor with elevated borders. Prothorax not keeled. 

 Mesothorax with a very slight keel on each side. Fore wings pale 

 green ; veins blackish. Hind wings grayish. Length of the budy 

 3 lines: of the wings 8 lines. 



a. St. Domingo. From Mr. Tweedie's collection. 



M 



