THE CANADIAN ENTOMOLOGIST 22 



r 



REPORT ON A SECOND COLLECTION OF NOVA SCOTIAN 

 EUPTERYGID LEAF-HOPPERS, INCLUDING DESCRIPTIONS 



OF NEW VARIETIES. 



BY \V. L. MCATEE, WASHINGTON, D.C. 



Like a previous collection* sent to the writer by Professor W. H. Brittain, 

 Provincial Entomologist of Nova Scotia, the present is reported upon in print, 

 because it contains undescribed forms. All specimens are in the collection of 

 the Nova Scotia Department of Agriculture. 



List of Species. 

 Alebra albostriella var. fulveola Herrich-Schaffer. — Digby Co., N. 6., Aug. 14, 

 1918. 

 Empoasca atrolabes Gillette. — Digby Co., N.S., Aug. 3, 1918. 



obtiisa Walsh.— " ' " " " 15, " 



pergandei Gillette.— " " " " 3, " 



unicolor " " " " " 15. " 



Typhlocyba querci Fitch. 



This is a robust Typhlocyba, measuring up to 5 mm. in length. The length 

 of vertex in proportion to width of space between inner margins of eyes (synth- 

 lipsis) is as 7-8: 14-16. The ground colour usually is pale yellow. 



The colour varieties including those hereafter described may be separated 

 by the following key: 



A. Elytral markings in the form of small dusky spots. 

 B. With spots only in apices of the discal cells of 



elytra var. querci Fitch. 



BB. With three pairs of spots along the commissural 



margin var. 6-notata Van Duzee. 



AA. Elytral markings in the form of cross-bands or lengthwise vittae. 

 C. The most conspicuous markings are cross-bands. 



D. Anterior cross-band narrow, directed backward on 

 the sides, (var. bifasciata Gillette and Baker 



now called) var. gillettei Van Duzee. 



DD. Anterior cross-band broad, directed forward on the 



sides var. volans, n. var. 



CC. The most conspicuous markings are lengthwise. 



E. Clavus except extremities and adjacent corium dusky; no 



posterior cross-band var. grata, n. var. 



EE. Elytron with a lengthwise streak connecting anterior 



and posterior cross-bands var. scripta, n. var. 



In the present collection are represented: 

 Typhlocyba querci var. querci Fitch. — Digby Co., N.S., Aug. 3, 1918. 

 Typhlocyba querci var. gillettei Van Duzee. — Digby Co., N.S., Aug. 8, 1918: 

 Victoria, B.C. July 17, 1918. 



Typhlocyba querci var. volans, new variety. 



With two dusky cross-bands, much broader than in variety gillettei Van 

 Duzee, the posterior over the cross-veins, the anterior over middle of clavi, 

 sloping forward on the corium parallel to anterior edge of elytron. In var. 



*See Can. Ent., Vol. L, No. 11, 1918, pp. 363-361. 

 October, 1919 



