HYMENOPTERA OF ALASKA 



BY WILLIAM HARRIS ASHMBAD 



CONTENTS : 



Introduction 123 



Systematic account 129 



Heterophaga : 



I. Apoidea •...« 129 



II. Sphecoidea ..•» 1-7 



m. Vespoidea 1^0 



rV. Formicoidea i^i 



V. Proctotrjpoidea 142 



VI. Cynipoidea , , 147 



VII. Chalcidoidea 149 



VIII. Ichneumonoidea ,, 154 



Phjtophaga : 



IX. Siricoidea 259 



X. Tenthredinoidea 260 



INTRODUCTION. 



Alaska has long been a terra incognita to the Hymenopterol- 

 ogist Up to the year 1899, the date of the Harriman Expedi- 

 tion, less than 30 species of Hymenoptera were known from 

 this vast territory. 



["7] (123) 



