HYMENOPTERA OF ALASKA 



BY WILLIAM HARRIS ASHMEAD 



CONTENTS : 



Introduction 

 Systematic account 

 Heterophaga : 



I. Apoidea 

 II. Sphecoidea 



III. Vespoidea 



IV. Formicoidea 



V. Proctotrypoidea 

 VI. Cynipoidea 

 VII. Chalcidoidea 

 VIII. Ichneumonoidea 

 Phytophaga : 



IX. Siricoidea 

 X. Tenthredinoidea 



I2 3 

 I2 9 



129 



I 4 2 

 147 

 M9 

 154 



259 

 26O 



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. 



C"7] 



