pTON CIC 
AMERICANA 
VOL. V. BROOKLYN, SEPTEMBER, 1889. NO, 9. 
Review of the North American Species of Pediopsis. 
By E. P. Van Duzer, Buffalo, N. Y. 
The family Bythoscopide, to which this genus pertains, is separable 
from its allies by the position of the ocelli, which are found on the face, 
more or less remote from its superior margin ; the vertex is narrow and 
confounded with the front, or apparently wanting, the head being en- 
tirely deflexed; and the elytra are membranaceous or but slightly 
thickened. Six northern genera have been established : 
Idiocerus Lewis, Trans. Ent. Soc. Lond., 1, p. 49, 1834. 
Macropsis Lewis, Trans. Ent. Soc. Lond., I, p. 49, 1834. 
Oncopsis Burm., Genera Ins., I, plate 10, 1846. 
Stragania Stal, Rio. Jan. Hemip., II, p. 49, 1861. 
Pachyopsis Uhler, Bull. U. S. Geol, and Geog. Surv., ILI, p. 466, 1877. 
Bythoscopus Germ., Silb. Revue, I, 180, 43, 1833. 
Pediopsis Burm.,; Genera Ins., I, plate 10, 1846. 
Agallia Curtis, Ent. Mag., I, p. 193, 1833. 
Macropsis has not yet been reported from this country; the other 
genera are well represented here. Mr. Uhlet’s description of Pachyopsis 
passes without notice several important points, rendering its arrangement 
in a synoptic table quite impracticable without an example for direct 
comparison, which unfortunately I do not possess; but its position 
would seem to be near Aacropsis. For the determination of the other 
five genera the synoptic scheme used by Mr. Edwards in his Synopsis 
of the British Cicadine will probably be found as convenient as any yet 
published. To make it more accessible to our American collectors it is 
copied here: * 
* Since the above was written Mr. Ashmead has published a generic synopsis of 
the Bythoscopide practically the same as that of Mr. Edwards except that he includes 
Pachyopsis ot Uhler, placing it near Zdéiocerus. See Ent. Am., V, p. 125, July 1889. 
ENTOMOLOGICA AMERICANA. VoL V. 1 SEPTEMBER 1889. 
