CONTENTS 



PAGE 



A. Introduction ., . 5 



I. Purpose and scope of the paper . . v . .5 



II. Acknowledgments and material 6 



III. Types '..-. . .7 



B. Methods of Study 8 



C. Taxonomic value of morphological characters, secretions, and 



biology 11 



I. Morphology . . . . . . . . .11 



1. Adult female 11 



(1). Antennae 11 



(2). Legs 18 



(3). Mouthparts 20 



(4). Dorsal ostioles 20 



(5). Cerarii 21 



(6). Anal lobes . . 22 



(7). Pores and ducts 23 



(8). Body setae 25 



(9). Anal ring and anal lobe setae . . . .25 



(10). Anal ring 26 



(11). Spiracles 26 



2. Larvae 26 



3. Adult male . . . . . . .27 



II. Secretions 27 



III. Biology 28 



D. Systematic treatment 30 



I. Definition of the group 30 



II. Generic concepts 31 



III. Synonymical list of names applied to California species . 32 



IV. Key to genera represented in California . . . .35 



