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



Clypeal lamellae large, extending nearly the entire width of 

 the process compacta 



14. Scutellum yellow; clypeal process small compar 



Scutellum black; metanotum yellow 15 



15. Yellow spot on base of mandibles; clypeal process broad, 



emarginate interiorly; hind femora black apically fasciola 



Mandibles black 16 



16. Clypeal process deeply emarginate, angles strongly produced; 



propodeal enclosure finely striate; spots on first tergite 



connate dentiftrons 



Clypeal process not or only slightly emarginate apical^.... 17 



17. Clypeal process not emarginate; stigma yellowish; propodeal 



enclosure mostly smooth deserta 



Clypeal process slightly emarginate; stigma brown, propodeal 

 enclosure finely striate .• arelate 



*=^C. arelate Banks. 



This species has been taken in New Hampshire and Virginia 

 and will probably be found within the region covered by this 

 report. 



C. clypeata Dahlbom. Howard, Insect Book, PL i. Fig. 14. 



Has been taken at Branford, New Haven, and Hartford from 

 June to August. 



°C. compacta Cresson. Howard, Insect Book, PI. iii. Fig. 34. 



C. compar Cresson. 



Occurs throughout the State and has been taken in New 

 Haven on flowers of New Jersey tea and in Scotland on Spircea 

 salicifolia; also, Putnam, 12 July, 1905 (H. L. V.). 



C. dentifrons Cresson. 



Hartford, 15 September, 1895 (S. N. D.) ; Stonington, 26 

 July, 1906 (J. A. Hyslop) ; Lyme, 28 August, 1910 (A. B. C). 



C. deserta Say. 



New Haven, 27 June, 1902 (E. J. S. M.), 16 August, 1904 

 (B. H. W.) ; 14 August, 1906 (P. L. B.). 



C. fasciola Cresson. 



Rockville, 23 August, 1905 (H. L. V.). 



C. fulvipediculata Schletterer. C. fulvipes Cresson. 



Hartford, 3 September, 1892, New Haven (S. N. D.), 16 

 August, 1904 (B. H. W.). 

 °C. fumipennis Say 



