272 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1959. [Riley, C. V.]—Continued. 
Chapter X: By C. S. Minot. 
Histology of the locust ( Caloptenus ) and the cricket ( Anabrus ). 183 
Study of histology of insects, 183-184—Explanations of Figs. 1 and 
2, Plate II, 185-186 —The cuticula, 186-188—The epidermis, 188-^ 
• 189 —Sense organs, 189 —Nervous system, 190—Tracheae, 191-195— 
Air-sacs and spiracles, 195—Muscles, 195-196—Organs of circu¬ 
lation, 196 — Connective tissue, 196-198—Ovary, 198-201—Ante¬ 
rior caecum of the oviduct, 201—Uterus of locusts, 201-203—Male 
organs, 203— Testis, 203-204—Development of the spermatozoa, 
204, 207 — Vasa deferentia, 207 —Ductus ejaculatorius, 207 —Vesiculw 
seminales, 207-208 —Digestive canal, 208-210—Crop, 210-211— 
Proventriculus, 211-212—Stomach, 212-214—Diverticula, 214- 
215— Gastro-ileal folds, 215-217—Ileum, 217—Colon, 217-218— 
Rectum, 218-219 —Summary on the digestive canal, 219-221— 
Malpighian vessels, 222. 
Chapter XI : By A. S. Packard. 
The brain of the locust. 223 
The nervous system in general, 223-224—The brain of insects com¬ 
pared with that of vertebrates, 224-226—The brain of the adult 
locust, 226—Histological elements of the brain, 226-228—The sec¬ 
tions of the brain, 228-230—Internal topography of the brain, 
230— The central body, 230, 231—The mushroom bodies, 231-234— 
The optic lobes, 234—The optic ganglion, 234—The antennal or 
olfactory lobes, 235—The commissural lobes, 235—The brain of 
locusts compared with that of other insects, 235-236—Structure 
of the brain in the embryo locust, 236—The brain of the embryo 
locust compared with the first thoracic ganglion, 238—The brain 
in the second embryonic stage, 238-239—Structure of the subce- 
sopliageal ganglion, 239—The brain of the freshly-hatched larva 
of Caloptenus spretus, 239; of the third larval stage of C. bivittatus , 
239; of the second or last pupal stage of C. spretus, 240-241— 
Bibliography of the internal structure of the brain of Crustacea 
and insects, 241-242. 
Chapter XII : By C. Y. Riley and C. Thomas. 
Locust ravages in California. 242 
Position of the genus Camnula in the (Edipodini , 242-243—Descrip¬ 
tion of the genus Camnula, 243; of (Edipoda pellucida, 243; of 
(Edipoda atrox, 243-244; of Camnula pellucida, 244-246—The 
locust in California in 1878, 246; in Sierra Valley, 247; in the 
vicinity of Loyalton, 247-248; of Sierraville, 249—History of lo¬ 
cust devastation in California, 250—Enemies of tbe Californian 
locust, 251— Protective measures, 251-252—Life history of Cam¬ 
nula atrox, 252-253—The red or locust mite, 253—Damage done 
by the locust in Sierra Valley, 254-255—The locust in California 
in 1879, 255-257— Description of CEdipoda obliterata, 257-259—Re¬ 
marks on Cratypedes Putnami, 259. 
Chapter XIII: By C. V. Riley. 
Further facts about the natural enemies of the locust. 259 
Blister-beetle larvae feeding on the eggs of the Californian locust, 
259- 260—Retardation in the development of blister-beetles, as 
shown in Epicauta vittata, 260—Philosophy of such retardation, 
260- 261 — Eggs of Chauliognathus pennsylvanicus, 261—Habits of 
the young larva, 261-262—Egg-laying of asilid-flies, and particu¬ 
larly of Mallophova orcina, 262—Bee-fly larvae common among the 
