| OCR Text |
Show PLATE IV Figs. 18-20. Euthyplocia. Fore wing. Fig. 18. Hind 19. Fig. wing. Fig. 20. Fore leg of nymph. Figs. 21-23. Lachlania. Fore wing, Fig. 21. powelli; from Edmunds, Berner and Traver (1958). Fig. 22. 'Gills, segment s f tve. arid.ss tx Fig. 23. Ventral view of head, thorax, and abdominal segments one to , t hr ee Fig. 24. , Homoeoneuria, fore wing; from (1958). Bae t Ls Figs.. 25- 26. Fig. 25. Gill, segment four. Fig. 26. Lateral view of head , Figs. 27-29. Callibaetis. Fore wing. Fig. 27. Fig. 28. Hind wing. Fig. 29. Gill, segment four. of nymph. Edmunds, Berner and Traver |
