4."»(i BIOLOGICAL SIltVKV OF 



ESpigbimi i a Tow osend 



E. flobidensis Town. Long Pond; Green Mt.; Bar Harbor, 

 June 16-Aug. 17. 



Lispidea Coqnillett 



L. sp. pars. Recurvaria thujella in U.S.N.M. 



Plectops Coquillett 



P. usitata Coq. Gt. Heath (Br.) on terminal webbed leaves 

 of willow. This is an unusual species which is apparently 

 quite rare and valuable. In U.S.N.M. 



P. mrlissipoda Coq. Laboratory, July 15. 



DEXODES Brauer and Bergenstamm (Xotltelairia) 



X. aurifkoxs Coq. Bred from willow sawfly material, July 



19 (Br.). 

 X. chaetoneura Coq. Same as above, Aug. 10. 



Ochrocera Townsend 



( ). vaginalis Town. Bar Harbor, Aug. 10. 



Spathidexia Townsend 



S. clemoxsi Town. Eden, July 13. 



S. dunxingi Say. Sweeping at the Tarn, May 23. 



Clausicella Bondani 



C. tarsalis (Coq.). S. W. Harbor, Aug. 4. Scarce. 



Lixophaga Townsend 



L. variabilis Coq. Common, June 20-Sept. 13. 

 L. gen. sp. near Bar Harbor, June 8, '36. Reared (Br.) ex 

 sawfly. 



Lydella Desvoidy 



L. assimilis Town. Common, July 15-Aug. 15. 



L. celeb Coq. Common, July 15-Aug. 15. 



L. lathami Curran. Mt. Desert, July. Scarce. 



L. .mvoidea Desv. One specimen at "Witches Hole, Aug. 27. 



