58 Mr. W. L. Distant on Homoptera. 



Vertex about as long as breadth between eyes, somewhat 

 flattened and anteriorly deflected, apical margin broad and 

 truncate, centrally longitudinally sulcate for its entire length ; 

 face broad, centrally Hattened and slightly foveately de- 

 pressed, the margins shortly, strongly, transversely carinate; 

 pronotum quadrangular, as long as broad at base, slightly nar- 

 rowed before the jjosterior angle, the lateral margins almost 

 straight; scutellum considerably longer than broad, jiosteriorly 

 acuminate, transversely impressed before apical area, which is 

 gibbous, cordate, the extreme apex slender; tegmina narrow, 

 subhyaline, the costal margin concavely sinuate before apical 

 area, a transverse discal vem at about one third from base, 

 four apical cells, three ante-apical cells (on one tegmen of 

 the type the middle ante-apical cell possesses three trans- 

 verse veins, in the other tegmen these are absent) ; anterior 

 tibias somewhat broadly comju'cssed and foliaceous, sulcate 

 above ; abdomen compressed towards the base. 



Allied to Lissoscarta, Stal, from which it diff'ers by the 

 longer and sulcated vertex, the flattened (not convex) face, 

 the much more dilated anterior tibi;e, &c. 



Propetes compressa. 



Propetes compi-essa, Walk. List Horn. iii. p. 797 (1851). 

 Tettiyoiiia con^iressa, Sign. Ann, Soc. Ent. Fr. (o) iii. p. 616, pi. xxi, 

 fig. 9 (1855). 



Hah. Amazons. 



Genus Diedrocephala. 



Diedrocephala, Spin. Mem. Mat. Fis. Soc. Ital, Sci. xxv. p. 97. n. 332 

 (1852) ; Stal, Hem. Fabr. ii. p. 78 (1809) ; Ball, Proc. Iowa Acad. 

 Sci. viii. p. 63 (1901). 



Type, D. variegata, Fabr. 



Stal {supra) has clearly defined this genus from the salient 

 characters of the type — "^ Capite sulco instructo ; tegminibus 

 apice truucatis vel sinuato-truncatis.'" 



Diedrocephala ignifer. 



Ciccus iynifer, Walli. List Horn. iii. p. 804 (1851). 



Vertex much longer than breadth between the eyes, the 

 lateral margins oblique, very slightly sinuate, narrowed to 

 apex, which is truncately rounded, strongly centrally longi- 

 tudinally sulcate. 



Hah. Colombia. 



