Insect artizans and their work . jq -3 a. -1-1 o .a -h a a 09 -a 5n 1) ?a rt t) u J* OJ w ri S S H V X — .^ d H „ b .15 -J 5 Cu rf S £5 MUSICIANS 269 the volume of sound proceeding from so small acreature is marvellous. We have kept our native Green Grasshopper(Locusta viridissima) as a pet, feeding it uponflies, and in the evenings it sang with notes thatresounded through the house. In this family theears are placed in the front legs, a little belowthe knee. De Geer pointed out long ago that an eye-likespot in the right wing-cover of the male was pro-bably connected with the powerful note
Insect artizans and their work . jq -3 a. -1-1 o .a -h a a 09 -a 5n 1) ?a rt t) u J* OJ w ri S S H V X — .^ d H „ b .15 -J 5 Cu rf S £5 MUSICIANS 269 the volume of sound proceeding from so small acreature is marvellous. We have kept our native Green Grasshopper(Locusta viridissima) as a pet, feeding it uponflies, and in the evenings it sang with notes thatresounded through the house. In this family theears are placed in the front legs, a little belowthe knee. De Geer pointed out long ago that an eye-likespot in the right wing-cover of the male was pro-bably connected with the powerful note of thisspecies. This area consists of transparent mem-brane resembling a little mirror or piece oftalc, of the tension of a drum. This membraneis surrounded by a strong and prominent nervure,and is concealed under the fold of the left elytrum,which has also several prominent nervures answeringto the margin of the membrane. There is everyreason to believe that the brisk movement withwhich the grasshopper rubs these nervures againsteach other produces a vibration in the membraneaugmenting the sound. The males in question singcon
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
