6. Fore-leg of Platychirus manicatus, ♂ (5 should be 6).
7. Fore-leg of Platychirus peltatus, ♂
8. Fore-leg of Platychirus scutatus, ♂
9. Fore-leg of Platychirus albimanus, ♂
10. Fore-leg of Platychirus clypeatus, ♂
11. Platychirus, ♂ and ♀, quadrate spotting
12. Melanostoma mellinum, ♀ triangular spotting
13. Larva of Microdon
14. Wing of Helomyza pallida
15 & 16. Diagram of a fly's leg. Vide C, I, on page 91.