248 



INDEX. 



Deinacrida thoracica, 157 



Deroplatys, strange leaf-like appendages, 



30,31 



Development of Mantidse, 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 tracheae, 87 

 Dipterous parasites of Acridiidse, 98, 130, 



131 



Disappearance of locusts from a spot 

 invaded apparently inexplicable, 1 16 

 Dolichopoda palpata, a cave-dweller, 156 

 Dragon flies as locust enemies, 130 



Ears, Acridian, 91 



of Locustidae, 145 

 Egg-capsules of Mantidse, 16 

 Egg-enemies of Acridiidse, 97 



Anthomyia egg-parasite, 98 



birds and mammals, 98 



Cantharidse, 97 



dipterous genus Idia, 98 



Locust-mite, 98 



Muscinse, 98 



two-winged flies of family Bombyliidse, 



98 

 Egg-laying of Mantidse, 16 



of Phasmidse, 53 

 Egg-masses of Acridiidse, details of, 95, 



96 



Eggs of Phasmidse, 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 Phasmidse, their resemblance to 

 seeds, 52 ; specially exemplified in 

 the eggs of Phyllium, 54, 55 

 time of laying, 54 



Elephant Hawk Moths. See Choero- 

 campinae 



Ellema harrisii, its short tongue, 224 



Emeralds. See Uraniidse 



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 by Savigny, 

 28 



Eremobiens, 137, 140; modified to extra- 

 ordinary extent for desert life, 137 



Eugaster guyonii, its defensive fluid, 155 

 its stridulation, unlike ordinary forms, 



155 



Eumegalodonidse, 159 

 Extatosoma, an ugly monster, 49, 65 



Fabricius on the genus Urania, 194 

 Females of Psychidae, 204, 206, 214, 216 



change to imago, 206, 216; death, 

 206, 218 



perpetual prisoners, 206, 216 

 Fossil Phasmidse, 78 



Galls, deposition of eggs in, oiMeconema 

 varium, 143 ; of Xiphidium ensife- 

 rum, 143, 144 



