Bull. U. S. B. F., 1923-24. (Doc. 953.) 
Fig. 16. — Larva of Coptotomus intenogatus, dorsal view. Fig. 17.— Head of same enlarged, showing color pattern. Fig. 
18. — Anterior margin of head. Fig. 19. — Portion ofsame, highly magnified. Fig. 20. — Larva of Laccophilusmaculosus, 
dorsal. Fig. 21. — Larva of Acilius semisulcatus, dorsal. 
