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



13. Brown intermedius 



Green inermis (female) 



14. Tegmina hyaline cinctus 



Tegmina clouded, tip broadly brown discoidalis 



C. fenestra tus (Fitch). 



1851. Cyrtosia fcnestrata Fitch. Cat. Horn. N. Y., 49. 678. 



1894. Cyrfolobiis fenestratus Coding. Cat. Memb. N. A., 431. 106. 



1908. Cyrtolobus muticus (in part) Van Duzee. Stud. N. A. Memb., 83. 



Common. A medium-sized brown species with a regularly 

 rounded dorsum and a distinct "window" or semi-transparent spot 

 in the center of the crest and a white band across the posterior 

 process just before the apex. The tegmina are hyaline with 

 clouded tips. 



It has been collected most commonly on Quercus velutina but 

 its Hfe history is unknown. 



Hosts: Black oak (Q. velutina), white oak, chestnut, red oak, 

 scarlet oak. 



New Haven, 21 June, 1904 (W. E. B.) ; Wallingford, 2 July, 1912 

 (D. J. C.) ; Litchfield, July (L. B. W.) ; Hamden, 20. June, 1920 

 (B. H. W.) ; Orange, 22 June, 1920 (M. P. Z.). 



C. ovatus Van Duzee. 



1908. Cyrtolobus ovatus Van Duzee. Stud. N. A. Memb., 82, pi. 2, 

 fig. 14. 



Rare. A southern form which apparently appears occasionally 

 in the New England States. 



Sordid yellow testaceous ; dorsum regularly elliptical ; head 

 projecting slightly forward ; posterior process high and carinate, 

 exceeding apices of tegmina ; tegmina hyaline, punctate at base. 



Host and life history unknown. 



Wallingford, 3 July, 191 2 (D. J. C). 

 C. fuliginosus (Emmons). 



1854. Cyrtosia fuliginosa Emmons. N. Y. Agr. Rept, v, 154, pi. 13, 

 fig. 15. _ 



1893. Cyrtolobus fuliginosus Coding. Can. Ent., xxv, 172. 



Probably common. Distinguished by its uniform dark brown 

 color without markings. It is near the preceding species in 

 appearance but is smaller and darker and has a lower crest. The 

 head projects slightly forward and the posterior process just 

 reaches the tips of the tegmina. The tegmina are strongly marked 

 with brown with the apices lighter. 



The life history has not been worked out, due largely to the 

 fact that this species lives together with several others of the genus 

 on white oak and the nymphs have not been distinguished from 

 closely related forms. 



Host: White oak. 



Hamden, 11 July, 1915; New Haven, 16 June, 1915; Middlebury, 20 

 June, 1916 (M. P. Z.). 



