ART. 18 JASSID GENUS TYPHLOCYBA McATEE 23 



TYPHLOCYBA CYMBA, var. UNIPUNCTA. new variety 



Tiiphlocijha ct/inhd, var. lotiiittiicla Brittain ms." 



Like var. palkuis but with the scutelluni dusky, a median vitta 

 most i^ronouncedly so. 



Holotype. — Female, Halifax, Nova Scotia, August 9, 1911) (N. S. 

 Dept. Agr.) ; Paratypes: Muskoka, Ont., July 1888, E. P. Van 

 Duzee (State Coll. Iowa) ; Agricultural College, Michigan, June 1, 

 1920, seriousl}" injuring sugar maple (Ball). 



TIPHLOCYBA CYMBA, var. GRATA McAtee 



TyphJoct/ha querci. var. (jrata McAtee. W. L., Report on a Second Collec- 

 tion of Nova tSc-otian Kupt^rygid Leaf-hoppers. iiK-lndini? descriptions 

 of new varieties. Can. Ent. vol. 51, no. 10, October 1!)1!>. p. •J'ivi ( Dijiby 

 County, N. S.). 



Like the typical variety, but dark markings more extensive : 

 Scutellum and a large saddle spot on tegmina occupying most of the 

 clavi and a portion of each adjoining corium, dusky. 



Ho/ofi/pe. — Female, Digb}^ County, Nova Scotia, August 14, 1918 

 (X. S. bept. Agr.). The writer is greatly indebted to Dr. W. H. 

 Brittain for returning the type specimen to him for re-examination. 

 It is clearly a variety of cy?)iba rather than of gillette.l {querci) 

 under which it was originally described. Robust females of gillettei 

 may closely resemble corresponding varieties of cymba but in prac- 

 tically all cases have dark markings over crossveins or in apical cells ; 

 ap})arently cijinha never has such markings. 



Other records: Halifax, Nova Scotia, August 9, 1919 (N. S. Dept. 

 Agr.) ; Mount Washington, N. H. (Ball) ; Cambridge, Mass., August 

 19, N. Banks (M. C. Z.) ; Cranberry Lake, N. Y., August 9, 1920, 

 Osborn and Drake (Ball) ; Rock City, N. Y., July 4, 1915, Ithaca. 

 N. Y., July 26, 1916, H. H. Knight (Kans. Univ.); Muskoka, Ont., 

 July 1888, E. P. Van Duzee (State Coll. Iowa) ; Agricultural College. 

 Mich., June 1. 1920, seriously iiTjuring sugar mai)le; Hazelhurst, 

 Wis., July 12, 1918, on Acer, L. G. Gentner (Ball). 



TYPHLOCYBA GILLETTEI Van Duzee 



Typlocy'ba bifusciata Gillette and Baker. ISulL ;>1 (Tech. Sor. 1) Colo, 



Agr. Exp. Sta.. 1895, p. 11, 2 figs. [Minturn, Colo.]. 

 Typhlocyha querci, var. hifasciata Gillette, C. P. American leaf-hoppers 



of the snl)family Typlilocybinae, Proe. U. S. Nat, Mus., vol. 20, 1898, 



p. 76(3. 

 Empoa querci, var. gillcUci Va.\ Duzee, E. P., Catalogue of the Ileiflip- 



tera of America north of Mexico, Univ. Calif. Puhl.. Tech. Bull. 



Ent., vol. 2, 1917, p. 70S. The combination Tifplocyhfi hifaxciata is 



preoccupied by Boheman, 1852. 



^* So published wi.th the approval of Dr. W. II. Brittain. 



