No. 34-] HEMIPTERA OF CONNECTICUT: CICADELLIDAE. 143 



abdomen, with distinct appendix, outer branch of first sector 

 usually wanting. 



Most of the species which belong here have two broods with 

 perhaps a partial third. With the exception of one or two which 

 are shrub-feeders, they apparently feed almost exclusively on 

 herbaceous plants. A few are common on Juncus, one or two 

 feed on Impatiens and others apparently live on grasses and sedges 

 and seem to prefer moist habitats. 



Key to Species. 



1. Small, less than 5 mm. in length, usually with several markings on 



vertex 2 



Larger, more than 5 mm. in length, vertex with two large black 

 spots close to margin, a pair in basal angles of scutellum, elytra 

 usually with a striped appearance punctifrons 



2. Species average size 4-5 mm 3 



Species minute less than 3 mm 6 



3. Vertex with four or six black marks on or above margin 4 



Vertex with only two round black spots located just above margin, 



usually an arcuate band on pronotum, parallel to and just back of 

 the margin arcuata 



4. Vertex with two round black spots on margin and two round spots 



close to base 5 



Vertex with six marks in pairs, usually a pair of transverse spots 

 or dashes on margin, a pair just above margin, and a pair of 

 round ones near base sex-notata 



5. With only four spots on vertex, elytra extremely variable in color- 



ation, usually with dark blotches. (Fig. 10, 10 and 13.) variata 



With four spots and an additional small one on the margin next 

 either eye lepida 



6. Vertex yellow with six or more spots often partially fused. A pair 



of black spots in angles of scutellum, elytra mottled slossoni 



Vertex dark fuscous with yellow markings, scutellum dark on disc, 

 yellow margined potoria 



C. punctifrons (Fallen). Cicada punctifrons Fallen. 



Hemip. Suec. Cicad., 42, 1826. 



Larger than the other species, pale greenish yellow with two 

 large black spots on vertex just back of margin, nearer to eyes than 

 median line. Tips of elytra slightly infuscated. Often swept 

 from willows on which it no doubt feeds. Common from June to 

 September. Length 6 mm. 



C. punctifrons var. repleta Fieber. C. punctifrons var. americana 

 Van Duzee. 



Revue d'Ent, iv, 49, 1885. 



As in preceding but with more coloration. Face and disc of 

 pronotum infuscated, basal angles of pronotum each with a large 

 black spot. Inner half of elytra dark with pale veins, giving it 

 an obliquely striped appearance. Length 5.5-6 mm. 

 C. variata (Fallen). Cicada variata Fallen. Jassiis fumatus 

 Herrich-Schaeffer. (Fig. 10, 10 and 13.) 



Acta Holm, xxvii, 34, 1806. 



