No. 34-] HEMIPTERA OF CONNECTICUT I MEMBRACIDAE. 193 



extends somewhat forward , over the head. The tegmina are 

 hyaline with the apices brown. The life history is not known. 



Goding has recognized a doubtful variety viridis (Bull. 111. State 

 Lab. Nat. Hist., iii: 426. 1894) which has also been recorded from 

 the State. 



Hosts: Locust, red oak, white oak, black oak (Q. velutina). 



New Haven, 11 June, 1897 (W. C. Sturgis) ; 11 June, 1914 (B. H. W.) ; 

 Litchfield, July and Aug. (L. B. W.) ; Hamden, 20 June, 1920 (B. H. W.). 



S. camelus var. viridis Goding. 



Bull. 111. St. Lab. Nat. Hist, iii, 426, 1894. 

 New Haven, 8 June, 1904 (W. E. B.). 



Cyrtolobus Goding. 



This genus is very large and widely distributed. The species 

 are in great confusion and extremely hard to delimit. The specific 

 characters generally used have been based on the shape and color 

 of the pro no turn, both of which are very variable indeed, so that 

 a long series of specimens shows gradations through a number of 

 species as at present recognized. 



The genus as a whole may be distinguished by the compressed 

 dorsum and the thin semitransparent spot below the dorsal ridge. 

 The colors are usually dull brown with many irregular markings. 



The genus is badly in need of revision but the following species 

 are apparently good and have been collected or should occur in 

 the State: 



Key to Species. 



1. Dorsum regularly rounded from head, without anterior notch or 



depression 2 



Dorsum with anterior depression before elevation 4 



2. Light (yellow or light green) 3 



Dark with distinct markings fenestratus 



3. Without markings ovatus 



With prominent black markings on metopidium maculifrontis 



4. Crest arising before humeral angles 5 



Crest arising behind humeral angles 6 



5. Color uniform dark brown fuliginosus 



Color pale reddish yellow with brown oblique line arcuatus 



6. Small, not over 7 mm. in length 7 



Larger, at least 9 mm. in length , . . .tuberosus 



7. Crest low or obsolete 8 



Crest well developed . • . § 



8. Tegmina uniform clouded brown fuscipennis 



Tegmina marked with whitish cinereua 



9. Pronotum distinctly marked with oblique bands 10 



Markings obscure or obsolete 12 



10. Metopidium and legs concolorous or mottled ; _ 11 



Median line of metopidium and tibiae white , inermis (male) 



11. Clypeus flat, lateral margins of head sinuate vau 



Clypeus very convex, lateral margins of head straight sculptus 



12. Concolorous and immaculate 13 



Pronotum faintly marked with oblique ray 14 



7 



