247 



ployed so loosely for most any species of this family that a desire for greater 

 precision would seem to call for the use of Dr. Stal's name even if it were 

 not fully justified by the rules of nomenclature as now most generally 

 understood and adopted. Certainly no exception should be made in this 

 case for the sake of perpetuating Fabricius' name by its application to the 

 larger genus. 



LIBURNIA ORNATA, (Stal.) 



Delphax ornata, Stal, Berliner Ent. Zeits. VI, p. 315, 1862. 

 Liburnia ornata, Osborn, Proc. Iowa, Acad. Sci., I, pt. 2, p. 127, 1S91. 



Van Duzee, Bui. Buf. Soc. Nat. Sci., V, p. 191, 1894. 



Fulvous-brown, brighter above; vertex, pronotum and scutellum with 

 a white median line which is bordered by a slender black line forming a 

 continuation of the black frontal fovse over the apex of the head. Frontal 

 carinae heavy, white. A longitudinal line behind the eye, the pleural pieces 

 and the abdomen black, the latter with some fulvous spots on the margins, 

 and the hind edges of the ventral segments may be pale. Elytra whitish 

 hyaline ; a large spot near the base of the corium and a broad V shaped 

 band beyond the middle having its apex on the inner edge near the tip of 

 the clavus, brown. Nervures on the apical half brown and brown-margined, 

 on the base dotted, concolorous on the brown basal spot. Front and clypeus 

 narrow, ligulate. Vertex rectangular, scarcely prominent before the eyes. 

 Length 4 m. m. 



This is a widely distributed and pretty species recalling by its orna 

 mentation Stobera tricarinata. Stal records it from South Carolina and 

 New York. Prof. Herbert Osborn has taken it in Iowa in September. 

 Mr. H. E. Weed has sent me specimens from Mississippi and Mr. W. J. 

 Palmer, Jr. of Buffalo has taken it in the mountains of North Carolina in 

 July. About Buffalo it is rare. I have taken one specimen here on grass 

 in June. 



LIBURNIA PELLUCIDA, (Fab ) 



Fulgora pellucida, Fab. Ent. Syst , IV, p. 7, 1792. 

 Delphax pellucida, Fab. Syst. Rhyng. , p. 84, 1803. 



Germar, Mag. der Ent., Ill, p. 212, 1S1S. 



Burm., Handb. der Ent. II, 1, p. 150, 1835. 



Stal, Of. Vet. Akad. Forb., XI, p. 193, 1854. 



Fieb. Verh. der Zool. Bot. Ges. Wien, XVI, tafl. 8, fig. 20, 1866. 

 Liburnia pellucida, Fieb. Cat. der Cicad. p. 5, 1871. 



Fieb. Cicad. d'Europe IY, p. 4, 1876. 



Sahlberg, Cicadarige p 436, 1871. 



Harrington, Ottawa Nat., VI, p. 31, 1892. 



Van Duzee, Bui. Buf. Soc. Nat. Sci., V, p. 191, 1894. 



Macropterous males: Color black; carinas of the head broadly white; 

 pronotum white clouded anteriorly between the carinae, or the surface may 

 be more or less obscured with blackish; scutellum shining black edged with 



