1. UTILIZATION OF NITROGEN- FIXING MICROORGANISMS BY LARVAE OF HIGHER DIPTERA

3. FAMILIES INVOLVED 1. EPHYDRIDAE (SHORE FLIES)
2. PLATYSTOMATIDAE (PICTURE-WINGED FLIES)
3. MICROPEZIDAE ()

4. EPHYDRIDAE (SHORE FLIES)

5. TRIBE HYADININI 1. GENUS HYADINA 2. GENUS LYTOGASTER
3. GENUS PHILYGRIA
4. GENUS NOSTIMA
5. GENUS AXYSTA
6. GENUS PELINA

6. CYANOBACTERIA ARE COMMON ON MOIST SOILS

7. BIOLOGY OF HYADINA

9. BIOLOGY OF LYTOGASTER

11. BIOLOGY OF PHILYGRIA

12. BIOLOGY OF NOSTIMA

13. BIOLOGY OF AXYSTA

14. BIOLOGY OF PELINA

15. PLATYSTOMATIDAE (PICTURE-WINGED FLIES)
A LARGELY TROPICAL FAMILY, PARTICULARLY IN THE ORIENT AND AFRICA
ONLY FOUR GENERA AND SOME ?? SPECIES IN THE NEW WORLD

16. THE GENUS RIVELLIA
1. A WORLD-WIDE GENUS OF OVER 100 SPECIES THAT FEED ON THE NITROGEN-FIXING NODULES OF LEGUMES
2. SOME ARE ECONOMICALLY DAMAGING TO SOYBEAN AND COW PEA
3. MANY SPECIES FEED ON NATIVE SPECIES OF FAMILY LEGUMINOSAE

17. RIVELLIA PALLIDA LARVAE ATTACK NODULES OF HOG PEANUT (AMPHICARPAEA)

18. RIVELLIA MELLIGINIS

19. FAMILY MICROPZIDAE 1. A WIDELY DISTRIBUTED FAMILY OF SOME ? SPECIES
2. SOME ? GENERA AND ? SPECIES IN AMERICA NORTH OF MEXICO
3. GENUS MICROPEZA HAS ONLY ? SPECIES IN NORTH AMERICA BUT SOME ? SPECIES IN THE AMERICAS SOUTH OF THE UNITED STATES

20. LARVAE ATTACK ROOT NODULES OF TREE AND SHRUB LEGUMES

21. DISTRIBUTION OF MICROPEZA LINEATA

22. WILD LICORICE (GLYCYRRHIZA LEPIOTA)

23. DISTRIBUTION OF WILD LICORICE

24. ROOT NODULES ON WILD LICORICE