ILLUSTRATIONS, IX 



Page. 



Fig. 24. Aleyrodes hoivardi: Pupa case and details 92 



25. Outdoor cage for rearing Tachinidte, with vestibule 96 



26. Outdoor cage for rearing Tachinidse, showing disposition of "tangle- 



footed " trays within the cage 97 



27. Eupeleteria magnicornis: First-stage maggot attached to leaf, awaiting 



approach of a caterpillar; enlarged mouth-hook of maggot 103 



28. Outdoor cage for securing oviposition of Japanese Tackina, covered 



about the door with paper to prevent the flies from congregating at 



that point 113 



29. Glass cylinders in use in rearing Tachinidaj and wire-screen recep- 



tacle for inclosing flies with caterpillars on foliage 114 



30. Parachxta sp.: Uterine egg with chorion removed, showing structure 



of the fully formed maggot from below 116 



31. Periods and succession of generations in Aphis maidi-radicis, 1906 127 



32. Periods and succession of generations in Aphis maidi-radicis, 1906 127 



33. Periods and succession of generations in Aphis maidis, 1906 147 



34. Periods and succession of generations in Siphafiava, 1907 159 



35. Paraleyrodes persese: Pupa on leaf, pupa case and details 171 



36. Paraleyrodes persex: Antenna, rig}:t forewing. male genitalia, and claw 



of third leg of adult 172 



