. Elementary entomology . Fig. 16. Side view of head of butterfly, with part of antennas {a) removed, showing mouth-parts ;«.v, maxillae ; /, labial palpus grasshopper is a fleshy, tonguelike organ, but in some orders it is quite differently developed. The salivary glands open near its attachment. \,c^ '-^"^ Suctorial type of mouth-parts. The mandibulate mouth-parts of the different orders are all of so similar a type as to be appar- ently homologous. The Siietocial mouth-parts consist of several

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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912