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



and this was taken in New Haven, 4 May, 1904, visiting 

 flowers of Forsythia suspensa (H. L. V.). 



*T. egregia Viereck. 

 Male : length 7 mm. 



Type locality: North Haven, 3 August, 1905. New Havei- 

 20 August, 1905 (H. L. V.), 14 August, 1906 (W. E. B.). 



*Trrelativa Viereck. 



Male : length 7 mm. 



Type locality: North Haven, 3 August, 1905 (B. H. W.). 

 Also, East Hartford, 2 August, 1905, Scotland, 7 August, 1905 

 (B. H. W.) ; Rockville, 27 August, 1905 (H. L. V.). 



SAPYGID^E. 



The species belonging to this family are parasitic on bees 

 or Sphecoid wasps. One of the North American species has 

 been bred in the cells of Sceliphron cementarium, another is re- 

 corded as a parasite on Ostnia halicticola and another is a 

 parasite on Chelostoma. None of the species belonging to this 

 family have as yet been taken within the State, but the two 

 following are likely to occur there. 



Sapyga Latreille. 

 Key to Species. 



Yellow line on inner orbits extending beyond summit of eyes; 

 clypeus with lateral and basal margins yellow; second ven- 

 tral abdominal segment black centrata 



Yellow line on inner orbits not reaching to summit of eyes; 

 clypeus with a transverse yellow spot at base americana 



S. centrata Say. 



S. americana Cresson. 



METHOCID^E. 



Methoca Latreille. 



M. stygia Say. 



The female of this species, which was described by Say under 

 the name bicolor, has a black head, while the remainder of the 

 insect is almost entirely castaneous. The male is black with the 

 wings dusky. 



