Plate LV 



Forest Species 



Fig. J. Galls of Cherry-leaf Gall-mile, Acarus serotince. (Beutenmiiller, 

 Bull. Amer. Mus. Nat. Hist.) 



Fig. 2. White Ant, Termes flavipes: a, queen; b, young of winged fe- 

 male; c, worker; d, soldier. All enlarged as indicated. 

 (After Marlatt, Bull. Bur. Ent. U. S. Dept. Agr.) 



Fig. 3. Periodical Cicada, Tibia n septendecim. Young nymph, newly 

 hatched. Greatly enlarged. (Lugger, Re]). Ent. Minn. 

 Exp. Sta.) 



Fig. 4. The same: A, male, typical form (natural size) ; c, d. genital 

 hooks of same (enlarged) ; g, sounding apparatus; B, male 

 of small form (cassinii), natural size; e, f, genital hooks 

 (enlarged). (Lugger, I.e.) 



Fig. 5. Dog-day Harvest-fly, Cicada Uinta, male. (Lugger, I.e.) 



