(Doc. 953.) 
Bull. U. S. B. F., 1923-24. 
ma rt 
Fig. 51.— Larva of Cybister fimbriolatus, dorsal view. Fig. 52. — Larva of Thermonectes basilaris Fig. 53. — Larva of 
Thermonectes ornaticollio. Fig. 54. — Side view of head of basilaris, showing deep penetration of dorsal eyes. Fig. 55. — 
Mandible of adult beetle, T. basilaris. Fig. 56. — The same, T. ornaticollis. 
