No. 34.] HEMIPTERA OF CONNECTICUT: CICADELLIDAE. 149 



3. Broad and robust, vertex broad, elytra whitish, nervure indistinct, .mali 

 Long and very narrow, vertex very pointed, elytra greenish or above 



abdomen a bluish cast, head pronotum and scutellum yellowish 



abnormis 



4. Uniform deep yellow, abdomen above black, vertex uniform yellow- 



ish flavipennis 



With pale yellow color, vertex usually with a distinct orange tinge 

 on margin fieberi 



D. cruentata Gillette. 



Proc. U. S. Nat. Mus., xx, 717, 1898. 



Vertex produced, apex moderately rounded, yellow, often with 

 a sanguineous blotch on middle, two lines on pronotum, scutellum 

 sanguineous, a blotch on clavus and another along inner sector of 

 corium. Red coloration frequently absent, but with elytron smoky 

 on cross veins. Length 2.75 mm. 



Has been reported from alder and witchhazel as adult in early 

 spring and late summer. 



D. mali (Provancher). Erythroneura mali Provancher. Dik- 

 raneura communis Gillette. 



Pet. Faune Ent. Can., iii, 298, 1890. 



Rather large, head produced, blunt but angled, sordid milky 

 white; vertex, pronotum and scutellum tinged with yellow, no 

 distinct markings above. Length 3.75 mm. 



A grass- and grain- feeding species, and one of our common 

 pasture and meadow pests throughout spring and summer. 



West Haven, 11 May, 1905 (B. H. W.) ; New Haven, 22 Sept., 1918 

 (F. H. L.) ; 24 May, 1920 (B. H. W.) ; Stratford, 9 July, 1920 (B. H. W.) ; 

 Westbrook, 21 Sept., 1920 (B. H. W.) ; Hamden, 10 Apr., 1921 (B. H. W.) ; 

 Milford, 2 May, 1921 (M. P. Z.) ; Madison, 24 Sept., 1922 (B. H. W.). 



D. abnormis (Walsh). Chloroncnra abnormis Walsh. (Fig. 

 14, 2.) 



Proc. Bost. Soc. Nat. Hist, ix, 316, 1864. 



Long and very narrow, head produced, pointed but tip slightly 

 rounded. Pale green often with two longitudinal sanguineous 

 lines crossing vertex and pronotum. Elytra subhyaline at tips, an 

 obscure red stripe on costa and another parallel to it half way to 

 costa. Length 3.5 mm. 



A grass feeder and occasionally found in large numbers injuring 

 grain. 



North Branford, 12 June, 1921 (B. H. W.). 

 D. flavipennis (Zetterstedt). Cicada flavipennis Zetterstedt. 

 D. armata Buckton. 



Fauna Lapp., 292, 1828. 



Vertex roundingly angled, color yellowish unmarked. Abdo- 

 men dark, margins yellow, elytra deep yellow, apex whitish hyaline, 

 hind tibiae with a row of distinct black spots. Length 3.75 mm. 



A pasture species which may occur in Connecticut. 



