TABLE OF CONTENTS TO REPORT III. 19 



Page. 

 The Philenor Swallow-tail 116 



Its food-plant, 116 Damage done by it, 116 Characteristics and devel- 

 opment of the larva, 116 Description of the larva, 117 The pupa, 

 117 The imago, 117 Prevention, 118. 

 The Cottonwood Dagger 119 



General appearance of the larva, 119 Two annual broods, 119 Chrys- 

 alis and moth, 119 Larvtu of other species belonging to the genus 

 Acronycta, 119 Parasites, 120 Description of larva and imago, 120 

 Characters and habits of other species of the same genus, 121. 

 The Missouri Bee-killer 121 



The true scientifi name of the Nebraska Bee-killer, 121 Wing-veins of 

 the genera Asllus, Promachus and Erax, 122 Description of the Mis- 

 souri Bee-killer, 122 How to destroy the flies, 123 Habits and life- 

 history of Asilus-flies, 123 Description of larva and pupa of Erax 

 Bastardi (?), 124 Synonyrnical notes on the imago, 124. 



INNOXIOUS INSECTS. 

 The Goat-weed Butterfly 125 



Its geographical distribution and position in classification, 125 -Its food- 

 plant, 125 Habits of the larva, 126 Larval changes, 126 Conform- 

 ity in the color of the larva with that of the leaves, 127 Description 

 of the full-grown larva, 127 Transformation of the larva to chrysalis, 

 127 The two sexes of the imago, 127 Hibernation, 128. 

 The Black Breeze-fly 128 



Breeze-flies beneficial in the larva state, 128 Tormenting power of 

 Breeze-flies, 128 Their mode of flight, 129 Our knowledge of their 

 larval character and habits, 129 General characters of the larva of 

 the Black Breeze-fly, 129 It is semi-aquatic, 129 Walsh's description 

 of the larva, 130 Habits and food of the larva, 130 Its transforma- 

 tions, 131 Discription of the pupa, 131 Probable habits of Breeze- 

 fly larvae on the Western prairies, 132. 



Galls made by Moths 132 



THE FALSE INDIGO GALL-MOTH 132 



The gall and its structure, 132 General appearance of the larva and the 



moth, 133 Description of larva and imago, 133. 

 THE MIS-NAMED GALL-MOTH 134 



Is it a true gall-maker or an iuquiline ?, 134 Walsh's description of the 

 larva, 134 Description of the imago, 134 Generic characters, 134 

 Reasons why the insect is an intruder and not a gall-maker, 134 

 Enumeration of the known gall-making moths, 135 How the gall is 

 formed, 135. 



REPORT III. 



[Submitted December 2, 1870; published April, 1871.] 

 Preface 3 



NOXIOUS INSECTS. 

 Snout-beetles 5 



The -whole vegetable kingdom and every part of each plant serve as food 

 for insects, 5 Enumeration of insects affecting the different parts of 

 the Apple-tree, 5 Other food-kabits of insects, 7 Vast extent of the 

 science of entomology, 8 Beauty and simplicity of classification in en- 

 tomology, 8 Each family distinguished by its general appearance, 8 

 Unity of habits in each family, 9 Distinguishing characters of 

 Snout-beetles, 9 Their larva*, 10 They are among the most injurious 

 beetles, 10 Injurious Snout-beetles in Europe, 11. 



