INDEX TO GENERAL SUBJECTS. 



Page. 



Introduction "'^ 



History of Thysanoptera !^1 



Systematic position of Thysanoptera S2 



Collection of Thysanoptera '"^4 



Preservation and monnting '"^o 



External anatomy ^"t 



Integument: adult, larva, pupa S" 



Head : antennte ^^ 



Organs of vision : eyes, ocelli •'! 



Mouth parts: labrum, maxillte, labium, mandible, maxillary lobes, other mouth 



structures, movements of mouth parts 91 



Thorax: jjrothorax, mesothorax, nietathorax, variation in structure of i)tero- 



thorax in wingless species 95 



Appendages of the thorax 98 



Legs: coxa, trochanter, femur, tibia, tarsus, spines, V)ladder, bladder mech- 

 anism, other organs of doubtful function , 98 



Wings: venation, fringing, spines upon wings, taking flight, coordination of 



the wings, reduction of the wings 101 



Abdomen: Terebrantia, Tubulifera 105 



Sexual characters 107 



Terebrantia: female, ovipositor; male 107 



Tubulifera: female, male, copulation 1 09 



Deformities 110 



Reproduction: bisexual reproduction, unisexual reproduction 110 



Dissemination Ill 



Development: oviposition, egg, embryology, emergence of the larva, larval 



stage, moits, nymph or pupa, hibernation, length of life 112 



Economic considerations 116 



Injurious forms: feeding habits 110 



Beneficial forms: predaceous thrips, flower fertilizers 117 



Natural checks: insects and acari, etc., plant parasites, rain 119 



Artificial checks: insecticides, cnltural methods 119 



Characters of Thysanoptera 121 



Method of measurements 1 22 



Individual variations 1 23 



Synopsis of suborders and families 124 



Characters of Terebrantia 124 



Characters of Aeolothripida^ 126 



Characters of Thripidt^e 1 32 



Synopsis of Thripidte 133 



Characters of Tubulifera (Phlceothripidte) b'-'6 



Synopsis of Phlceothripidie l^'7 



Unclassified descriptions 208 



Fossil Thysanoptera 210 



(ieneral considerations 213 



Bibliography 221 



Index to families, genera and species 233 



Index to food i)lants 234 



Explanation of plates 236 



232 



