iv GUIDE TO CALIFORNIA INSECTS. 



All structures referred to in the synopses will be found explained in the 

 general discussion of the order or family or when of general applicability 

 in the introductory chapter and other technical terms used in discriptions are 

 given in the appendix. 



The names applied to insects have been exceedingly unstable and give a 

 great deal of trouble even to experienced entomologists. Under each family 

 will be found an alphabetical list of all the names that have been applied 

 to California insects with citations to the present accepted nomenclature. 



The appendix includes many directions which will be of use both in the 

 laboratory and in the field. 



Finally such a guide as this should be kept up to date. To accomplish 

 this the whole book is held in type so that it may be revised for each semister. 



The author will appreciate very much to have the mistakes or omissions 

 of this book brought to his attention inorder that they may be rectified in 

 the next edition. He wishes to acknowledge the help he has already re- 

 ceived from members of his staff, particularly Dr. Van Dyke in Coleoptera, 

 Prof. Herms with the parasitic forms of all orders, Mr. Bridwell in the Hy- 

 menoptera and Mr. Coleman in the Coccidse. The Thysanoptera have been 

 revised for this book by Mr. Jones. 



C.W.Woodworth. 

 Berkeley California. 

 August 1913. 



