58 



THE REPORT OF THE 



No. 36 



E. vulnerata Fitch. Fitch's description is as follows: 



"Fulvous brown, spotted and lined with whitish; elytra with an abbreviated yellowish- 

 white vitta on the outer margin, interrupted near the middle by an oblique black line, and toward 

 the apex by an oblique sanguineous one; tips dusky, with whitish nervures and spots; a whitish 

 medial line common to the vertex, thorax and scutel; beneath black, legs pallid. Length, 0.12 

 inch." 



This species occurred in considerable numbers at and east of Vineland 

 (see table No. 3). Apart from the fact that the nymphs of vulnerata mature 

 somewhat more slowly than those of comes, there are apparently no outstanding 

 differences between the habits and life histories of the two species. 



E. comes vitis Harris. Description: 



"Mostly red above, with two transverse yellow lines on the elytra, surrounding a large 

 central red or brown spot." — (Gillette.) 



Vitis was taken in large nurnbers only in one vineyard (Port Dalhousie) 



and here it was found breeding almost exclusively on Clinton vines. 



E. comes ziczac Walsh. Description: 



"Like comes, except that the zigzag line running from the humerus to the inner margin and 

 thence to the cross-nervures of the elytron is broad and smoky or blood brown in colour." — 

 (Gillette.) 



This variety occurred on grapes in comparatively insignificant numbers 

 but it was very abundant on and injurious to Ampelopsis vines. On Ampelopsis 

 the first brood nymphs hatched out and reached the adult stage two weeks 

 earlier than those of comes on grape vines. In spite, however, of the early matur- 

 ing of the first brood nymphs the second brood was surprisingly small. The 

 eggs of variety ziczac were commonly found laid parallel to each other'in groups 

 of from three to ten eggs. 



Table No. 3 — Showing Proportionate Occurrence and Distribution. 



Locality 



Number 











E. 



E. 



Exam- 



E. 



Var. 



Var. 



Var. 



Tri- 



Vulner- 



ined 



comes 



8-notata 



Ziczac 



Vitis 



cincta 



ata 



387 



5% 







3% 



90% 



2% 



710 



15% 









80% 





800 



15% 









85% 





391 



18% 









75% 





408 



15% 









85% 





510 



37% 









58% 





500 



51% 





1% 





48% 





612 



20% 





3% 



*38% 



35% 



2% 



695 



36% 





2% 



2% 



55% 





605 



82% 



4% 



2% 







10% 



402 



52% 





12% 





3% 



5% 



470 



98% 



1% 











483 



65% 



7% 



5% 





8% 



15% 



419 



76% 



2% 



1% 





7% 



14% 



210 



91% 



3% 









4% 



310 



80% 



3% 









16% 



487 



48% 



4% 



3% 





29% 



16% 



380 



56% 



1.5% 



5% 







35% 



Em- 



poasca 



mali 



(^usenston 



(Ramsay) 

 Virgil 



(Taylor) 

 Niagara Township. 



(Bufton) 

 Niagara Township. 



(Lee) 

 St. Catharines 



(Counsell) 

 St. Catharines . . . . 



(Davis) 

 St. Catharines. . . . 



(Coles) 

 Port Dalhousie. . . . 



(Barnesdale). . . . 

 Vineland 



(Arnott) 

 Vineland 



(H. E. S.) 

 Vineland 



(Rittenhouse) 

 Beamsville 



(Hobden) 

 Beamsville 



(Cox) 

 Grimsby 



"Mountain" 

 Winona 



"Mountain" 

 Winona 



(Carpenter) 

 Vinemount 



5% 

 7% 



" 5% 



2% 

 7% 



2% 



28% 



1% 



2% 

 1% 



2% 



*Clinton variety of grape. 



