248 



INDEX. 



Dcinacrida thoracica, 157 



Deroplatys, strange leaf-like appendages, 



30, 31 



Development of Mantidce, 21 

 Devil's Riding-Horse. See Mantis 

 Diapheromera femorata, ravages of, 45 

 eggs of, their deposition, 52-54 

 possesses gregarious tastes, 48 

 post-embryonic development, 56 

 Digger- Wasps, as locust-enemies, 129 

 Dilatable tracheoe, 87 

 Dipterous parasites of Acridiidx, 98, 130, 



•31 

 Disappearance of locusts from a spot 



invaded apparently inexplicable, 1 16 



Dolichopoda palpata, a cave-dweller, 156 



Dragon flies as locust enemies, 130 



E 



Ears, Acridian, 91 



of Locustidre, 145 

 Egg-capsules of Mantidce, 16 

 Egg-enemies of Acridiidce, 97 



Anthomyia egg-parasite, 98 



birds and mammals, 98 



Cantharidx, 97 



dipterous genus Idia, 98 



Locust-mite, 98 



Muscinse, 98 



two-winged flies of family Bombyliidre, 

 98 

 Egg-laying of Mantidse, 16 



of Phasmidse, 53 

 Egg-masses of Acridiidae, details of, 95, 



96 

 Eggs of Phasmidte, remarkable nature of, 



52 

 each egg really a capsule containing an 



egg, 53 

 manner of deposition, 53 

 number produced, 54 

 scramble out of, change during, 55 



Eggs of Phasmidre, their resemblance to 

 seeds, 52 : specially exemplified in 

 the eggs of Phyllium, 54, 55 

 time of laying, 54 



Elephant Hawk Moths. .S(V Chnero- 

 campinre 



Elleriia harrisii, its short tongue, 224 



Emeralds. See Uraniidre 



Enemies of the locust, 97, 127, 129 

 invertebrate, 97, 129; animals that 

 feed upon the locust, or are para- 

 sitic externally, 129 ; animals that 

 prey upon the locust internally, 130 

 vertebrate, 98, 127 ; Locust Birds, 127 ; 

 various vertebrates, 98, 128 



Entometa ignobilis. See Lictor Moth 



Ephippigerides, organs of stridulation, 147 



Eremiaphila, first discovered bv Savigny, 

 28 



Eremobiens, 137, 140 ; modified to extra- 

 ordinary extent for desert life, 137 



Eugastei- giiyonii, its defensive fluid, 155 

 its stridulation, unlike ordinary forms, 



155 



Eumegalodonida:, 159 



Extatosoma, an ugly monster, 49, 65 



Fabricius on the genus Urania, 194 

 Females of Psychidre, 204, 206, 214, 216 



change to imago, 206, 216 ; death, 

 206, 218 



perpetual prisoners, 206, 216 

 Fossil Phasmidoe, 78 



Galls, deposition of eggs in, ol Mecouema 

 rariurn, 143 ; of Xiphidiinn ensife- 

 rum, 143, 144 



