INDEX 



453 



Hornet, 396 



Horn-tail. See Wood- wasp 

 "Humpbacks," 313-315, 325 

 ffydatina*, 102, 103, 104 

 Hydra*, 23-31, 35-36, 48 

 Hydrachna ( = water mite), 198, 200 

 Hydractina, 169 



Hydrocampa nympheata, 234, 239 

 Hydrocampinae, 233-234, 239 

 ffydrometra*, 282, 283, 293 

 Hydrophilidae, 264 

 Hydrophilus piceus*, 252-255, 264 

 Hydropsyche, 323, 325 

 Hylesinusfraxim*, 263, 264 

 Hylotama rosae, 431, 44$ 

 Hyphydrus ovatus*, 248 

 Hyponomeuta padella, 237-238, 239 

 Hypopharyux, 340 



Ichneumon wasps*, 445, 446 

 Ichneumonidae, 363, 445, 446 

 Ilybius ater*, 248, 264 

 Imago, meaning of term, 211 

 Inquilines, 442-443, 446 

 Ixodes, 200 

 Ixodidae, 198, 200 



Jelly-fish*, 37-42, 49 

 Juhis*, 202-203 



Labium, 207-208 



Labrum, 207, 208 



Lacewing-fly*, 287, 315-316, 325, 



326 



Lady-birds, 251-252, 264 

 Lagena*, 10, 19 

 Lampyrides, 258, 264 

 Lampyris noctiluca*, 258, 264 

 Larch Canker, 292 

 Lasi-us*, 402-412, 413, 416, 421, 



427, 428-429 

 Leech*, Horse, 90-91, 92, 93 



Medicinal, 90, 92 



* Small Pond, 91, 92 

 Leaf Insect, 274, 275 

 " Leather- jacket " *, 357 

 Lepas, 176, 177 

 Leptoplana tremellaris* , 94-95, 103, 



104 



Lestes, 306, 325 

 Lethosia lurideola, 239 

 Libellula*, 303, 304, 325 

 Libellulidae, 303-304, 325 

 Limacidae, 136, 138 



Limax, 136, 138 

 Limnaea*, 105-115, 137 

 Limnaeidae, 137 

 Limnophilns* , 321, 322-323, 325 

 Limpets, 138 



Common*, 123 



Lake, 118 



Eiver*, 118 



Linens marinus*, 96, 97, 103 

 Liparidae, 234-236, 239 

 Lithobius forficatus* , 202, 203-204 

 Littorina*, 120-121, 138 

 Liver-flukes, 96, 103 

 Lobster, 163-164, 176 

 Locust, 273 



Locusta viridissima* , 273, 274 

 Locustidae, 273, 274 

 Lomechusa, 417-418 

 Lopkopus crystallinus* , 100, 101, 



103, 104 



Lophyrus pint*, 430-431, 446 

 Lucanidae, 264 

 Lucanus cervus*, 260-261, 264 

 Lumbricus terrestris*, 71-82, 92 

 Lung-books, meaning of term, 183, 



184 



Lycaena, 225, 238 

 Lycaenidae, 225, 238 

 Lycosa*, 191, 194-195, 199 

 Lycosidae, 194-195, 199 

 Lymantriidae, 234-236 



Macrogamete, meaning of term, 16, 17 



Madrepores*, 46-48, 49 



Mandible, meaning of term*, 159, 



207, 208 



Mantidae, 271, 274 

 "Mask" of dragon-fly*, 299-300 

 Maxilla, meaning of term, 159, 207, 



208 



Maxillipede, meaning of term, 159 

 May-fly*, 295, 308-311, 325 

 "Mealy-bugs," 292 

 Medusae*, 32-35 

 Megachile, 385-386, 387 

 Megalopa. See under Crab 

 Mdeagrina margaritifera, 143, 149 

 Melicerta*, 102, 104 

 Mellinus arvensis, 398, 399 

 Melolontha mdgaris*, 259-260, 264 

 Melolonthides, 264 

 Membranipora, 99, 103, 104 

 Mesogloea, described, 25 

 Mcsostoma ehrenbergii, 95-96, 103 



