INDEX. 



251 



Metamorphoses of Mantidae, hatching of 



larva, time of, 21 

 number of larvae yielded by a single 



capsule, 22 



nymph state compared with sub- 

 apterous or apterous adults, 24 

 time occupied in metamorphoses, 



21 

 "Metamorphoses," the, or "Golden 



Ass," 163 



Methone anderssoni, 137, 140 

 Metura elongata, a most interesting 



architect, 208 

 strange female of, 2 1 7 

 striking cases of, 208, 209. 215 

 Microcentrum retineme, eggs of, 144 ; 



metamorphoses, 144, 145 

 curious habits, 150 

 music, 149, 150 



Migration of Butterflies, 179; of Day- 

 flying Moths, 201 ; of Lepidoptera 

 generally, 241 



of Locusts, 109 ; laws governing, III; 

 phenomenon explained by excessive 

 multiplication, 111,113; other causes, 

 remote, immediate, 113; remarkable 

 manifestations of instinct attend, 

 locusts take direction of predecessors, 

 trial flights, locusts wait for change 

 when wind unfavourable, 115 ; dis- 

 appearance of locusts from a spot 

 invaded apparently inexplicable, 

 116; distance to which swarms 

 may migrate, 123; length of single 

 flight, 123 ; facts in proof of power 

 of prolonged flight, 124-126 

 Migratory, most species of Acridiidae not, 



106 

 disposition, not caused by anatomical 



differences, 108 



locusts, habits and natural history, 109; 

 ravaging power of, 109 ; huge size 

 of swarms, 109 ; famine and pesti- 

 lence result of a swarm, 1 10 



Migratory species, exist in countries with- 

 out giving rise to swarms, 108 ; pene- 

 trate to our shores, 108 

 species of Acridiidae ascertained to be, 

 of the Old World, 107 ;. of the New 

 World, 107 

 Mimetic resemblance of Phyllium, 67, 



68 



Mimicry of Phasmidse, end gained by, 66 

 is purely defensive, 66 

 perhaps no other group in form and 



colour so generally imitative, 67 

 Morphidae, 177 

 Murray, on Phyllium, 56, 58, 74 



on the eggs of Phyllium scythe in 

 Royal Botanic Garden, Edinburgh, 



54 

 Music of Acridiidae, 88 



of Locustidae, how produced, 147, 149 

 Musical organs of Locustidae, situation, 



structure, 147 

 found usually only in male, 147 



N 



Nervous system, in Acridiidae, 87, 88 



the " brain," 87 



Nomadic in habit, that Death's Head 

 Moth is, 239 



Oedipodides, 107, 126, 132, 136, 137 

 Eremobiens, 137 

 includes most of the species of migratory 



locusts of the Old World, 107, 136 

 winged, striking cases of colour differ- 

 ence, is correlative with locality, 136 

 OikttMis kirbii, female imago of, 217 

 Orange river, attempted crossing of, by 

 " Voetgangers," 121 



