YOL, Y. 



BROOKLYN, SEPTEMBER, 1889. 



NO. 9. 



Review of the North American Species of Pediopsis. 



By E. p. Van Dizee, Buftalo, N. Y. 



The family Bythoscopidce, to which this genus pertains, is separable 

 from its allies b}' 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 deliexed ; and the elytra are mernhianaceous or but slightly 

 thickened. Six northern genera have been establislied : 

 Idiocerus Lewis, Tran«, Ent. Soc. I.oiid., 1, ]->, 49, 1834, 

 Macropsis Lewis, Trans. Ent, Soc. Loud., I, p. 49, 1834. 

 Oncopsis Burm., Genera Ins., I, plate 10, 1846. 

 Stragania Stal, Rio. Jan. Hemip., H. p. 49. 1861. 

 Pachyopsis Uiiier, Bull. U. .S. Geol, ami Geog. .Surv., Ill, p. 466, 1877. 

 Bythoscopus Germ., Silh. Revue, I, 180, 43. 1833. 

 Pediopsis Burm., Genera Ins., I, plate 10, 1846. 

 Agallia Curtis, Ent Mag., I, p. 193, 1833. 



J/r?cro/)5/5 has not yet been reported from this country; the other 

 genera are well represented here. Mr Uhler's description o{ 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 Macropsis. For the determination of the other 

 five genera the synoptic scheme used by INIn Edwards in his Synopsis 

 of the British Cicadince 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 Bythoscopidix practically the same as that of Mr. Edwards except that he includes 

 Pachyopsis of Uhler, placing it near Idiocerus. See Ent. Am., V, p. 125, July 1889. 

 Entomologica Ameeicana. Vol V. 1 September 1889. 



