THE MOUNT DESERT EEGION 407 



CoLEOCENTRUS Graveuhorst 



C. RUFUS Prov. var. Seal Harbor (David Rockefeller). 

 C. sp. N. E. Harbor, July 10 (Minot). 

 C. n.sp. One taken June 26 and one July 2, 1929. One in 

 U. S. N. M. and other number 1990 in cabinet. 



Arotes Gravenhorst 



A. AMOENUS Cress. Echo Lake ; Bar Harbor, June 17-July 22. 

 A. FORMosus Cress. Bar Harbor, July 22. 

 A. viciNiTs Cress. Bar Harbor; Robinson Mt. (Alexander), 

 July 26-Sept. 3. 



XoRiDES Latreille {Xylonomus Gravenhorst) 



X. ALBOPiCTUS (Cress.). Several hatching under the bark of 

 a dead maple at the Tarn, May 23, '37. Supposed to be 

 parasitic on Saperda discoidea. 



X. HUMERALis Say. Salisbury Cove, July 27. 



X. STiGMAPTERus Say. Salisbury Cove, June 9. 



POEMENIA Holmgren 



P. ALBiPEs Cress. N. E. Harbor, July 12-Aug. 10 (Minot). 

 P. AMERICANA Crcss. Salisbury Cove, July 24. 



Odontomekus Gravenhorst 



0. ATRiPES Roll. Bar Harbor, June 21. 



0. AETHiops Cress. Bar Harbor, June 21. 



0. CANADENSIS Prov. Echo Lake; Long Pond, June 26-July 



12. Parasitic on Leptura, Dicerca and other wood-boring 



beetles. 

 0. MELLiPEs Say. Bar Harbor, June 21-Sept. 11. 

 0. sp. Corfield, June 15. 



