No. 34-] HEMIPTERA OF CONNECTICUT: CICADELLIDAE. IO9 



1920 (B. H. W.) ; West Haven, 2.-7 June, 1905 (H. L. V.) ; Bridgeport, 

 20 Sept., 1920 (B. H. W.) ; Waterbury, 15 Oct., 1920 (B. H. W.; Cornwall, 

 5 June, 1921 (B. H. W.) ; East Haven, 10 May, 1921 (B. H. W.) ; Hamden, 

 5 July, 1920 (P. G.) ; Orange, 22 June, 1920 (B. H. W.) ; North Bran ford, 

 5 July, 1921 (P. G.) ; Killingworth, 2^ June, 1920 (W. E. B.). 



D. misellus Ball. 



Can. Ent, xxxi, 191, 1899. 



Resembling sayi in general appearance but smaller and paler 

 without the dark bands, and the female segment roundingly pro- 

 duced. White markings on vertex not conspicuous, elytra short 

 with veins white, often discal, claval and apical cells more or less 

 black. Male plates shorter and broader than sayi. Length 

 3.2 mm. 



A typical and apparently restricted northern form, found in suffi- 

 cient abundance usually in New England to place it with those of 

 economic value. Common on grasses during June, July and 

 August. 

 D. weedi Van Duzee. (Fig. ii, 3a, b.) 



Trans. Am. Ent. See, xix, 306, 1892. 



Pale brown with white and fuscous markings. Vertex pro- 

 duced, as long as wide between eyes, well angled, a dark inter- 

 rupted band just before eyes and four black triangular spots 

 behind margin. Elytra with nervures broadly white, margined 

 with fuscous. Clavus strongly reticulate. Female segment con- 

 cavely rounded. Male valve broadly rounded, plates angularly 

 produced. Length 3 mm. 



Feeds on low pasture grasses and frequents waste places. It is 

 a rather common form over a large area, including the New 

 England States, June to September. 



Huntington, 9 July, 1920 (B. H. W.). 

 D. interruptus DeLong. 



Tenn. St. Bd. Ent, Bull. 17, 51, 1916. 



Resembling weedi in coloration but more robust. Vertex dis- 

 tinctly angled, a little longer on middle than width between eyes, 

 as long as pronotum, elytra broad but slightly exceeding abdomen. 

 Quite variable in coloration. In dark specimens an interrupted 

 band on vertex between eyes and four round black spots above 

 margin often fused with band. Elytra with nervures pale, dark 

 margined. Female last ventral segment very short at sides, con- 

 vexly produced on middle to three times length of preceding seg- 

 ment, a membraneous plate conspicuous at either side. Male 

 valve almost transverse, slightly produced at middle and placed in 

 concavity of last ventral segment. Plates one-half longer than 

 valve concavely narrowed to acutely pointed tips. Length 2.9- 

 3.2 mm. 



Originally described from Tennessee, but has been collected in 

 many states throughout the eastern United States, and the record 



