. Elementary entomology . d FIG. 64. Squash-bug a. mature female ; b, side view of head, show- ing beak ; c, abdominal segments of male ; again. In the third Stage it is d, same of female, (a, twice natural size ; eiiai*ed-> <Afte/ chittenden Lmted btates Department 01 Agriculture) considerably larger and flatter, J and darker in color. Eight days later the third molt takes place, and the new clothes of the fourth stage differ in having small but distinct wing pads extending back

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