THE CANADIAN ENTOMOLOGIST. 147 



Spec. 2. Not like any British Sarcophaga. 



[lo spec M., male and female, Cambridge and Dorchester, Mass.; 

 Trenton Falls, July, O.S.; Long Island, O.S., July, Sept.; Manlius, 

 Comstock, all N. York ; Canada ; Illinois. There are similar 

 specimens in L. coll., but I am not sure of the identity.] 

 E. Thorax with only two large bristles behind suture. 



Spec. 3. Seems identical with 6'. nurus Rond. 



[11 spec. M., male and female, Cambridge, Mass.; N, York; 

 Pennsylvania; Canada; Twin Lake, Color., Lieut. Carpenter. In 

 Loew's coll. is at least one specimen labeled S. dimidiata from 

 N. Y., bearing the same No., 325, with two seen by Mr. Meade. 

 The number was used by O. S. to identify later specimens sent by 

 him to Loew. One specimen seen by Mr. Meade from Mr. A. 

 Agassiz' collection is labeled S. georgiana, and probably to be 

 considered as the species mentioned by Th. W. Harris, as most of 

 Mr. A.'s specimens were determined by him. I can not compare 

 6". iiunis Rond.l 



Spec. 4. Very similar to vS. cntsfata Meig. 



[3 spec. M., male and female. Nahant, Mass. 1 cannot identify 

 with them spec, in L. coll.] 



Spec. 5. Similar to S. nurus Rond., only both anal segments red. 



[3 spec, Cambridge, male; Cuba, Ch. Wright, female. In J^oew's 

 collect. 3, Distr. Columbia, a number from Cuba marked " vivi- 

 parous, out of rotten land cray-fish," one fr. Bahia.] 



Spec. 6. 6". Lherminieril R. Desv. 



[One female, M. collect, on a voyage fr. Aspinwall to N. York by 

 W. Holden; loc. incert.] 



C. Posterior tibiae of male without beard. 



D. Second abdominal segment with two central spines. 

 E. Thorax with four dorsal bristles behind suture. 

 Spec. 7. Differs from any British species. 



[2 spec. M., one N. Conway, N. H., male, August 17, O. S.; the 

 other marked " doubtful spec," female, S. Franc, Cala., Holden. 

 I am not able to see the two spines in the centre of the edge of 

 the 2nd segment.] 

 E. Thorax with three dorsal bristles behind suture. 



Spec. 8. Corresponds with 6*. erythrura Mgn. 



