94 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



P. major Osborn. 



Me. Agr. Expt. Sta., Bull. 238, no, 1915. 



Similar to viridis in form and color, but larger with vertex well 

 rounded, margin drawn out to thin edge and elytra proportionately 

 shorter. Length, male 6 mm., female 8 mm. 



A northern form which should occur in same habitats and in 

 company with viridis. Described from specimens taken from 

 Calamagrostis canadensis both in adult and nymphal stages. 



New Haven, n Aug., 1908 (B. H. W.) ; 22 Aug., 1920, 12 May, 1921 

 (B. H. W.) ; East Haven, 27 June, 1921 (M. P. Z.). 



Mesamia Ball. 



Paramesus Van Duzee. 



Vertex with anterior margin usually elevated and acutely angled 

 with front, disc depressed. Elytra with second cross nervure 

 present and central anteapical cell slightly constricted. Super- 

 numerary veinlets along clavus and costa. 



Key to Species. 



1. Elytra whitish marked with a dark saddle between the cross 



nervures nigridorsum 



Elytra fulvous with milky white areas vitellina 



M. nigridorsum Ball. Paramesus twiningi Van Duzee. Parame- 

 sus jucundns Gillette and Baker. (PI. iii, 8.) 



Proc. Dav. Acad. Sci., xii, 60, 1907. 



Ivory white, vertex with disc brown, a black spot either side of 

 median line anteriorly. Pronotum brown, an irregular row of 

 spots behind anterior margin, face black, elytra milky white. 

 Saddle on posterior two-thirds of clavus black, a band on basal and 

 apical portions and nervures, brown. Length 4.5 mm. 



Reported as feeding on Helianthus, a common and widely dis- 

 tributed species perhaps extending as far north as Connecticut. 

 M. vitellina (Fitch). Acocephalus vitellina Fitch. Jassus 

 twiningi Uhler. Paramesus furcatus Osborn. 



Homop. N. Y. St. Cab., 57, 1851. 



Vertex and face yellow, often a black line below margin. 

 Anterior margin of pronotum yellowish, darker posteriorly, elytra 

 orange-yellow with numerous white spots, an oblique testaceous 

 band extending from middle of costa to apex of clavus. Length 

 5.5-6.5 mm. 



Common throughout New England feeding on wild rose, and 

 often found on tall grasses in wooded areas. 



East River, 2 Aug., 1910 (C. R. E.) ; North Branford, 13 July, 1920 

 (B. H. W.) ; Portland, 8 Aug., 1913, 25 July, 1920 (B. H. W.) ; New 

 Haven, 4 July, 1921 (B. H. W.) ; Cornwall, 18 July, 1921 (B. H. W.) ; 

 Ellington, 8 Aug., 1922 (B. H. W.). 



