INDEX. 55 



Page. 



Smartweed, food plant of Sericothrips variabilis 24 



Solarium sp., food plant of Euthrips cephalicus 27 



Thrips abdominalis 23 



umbelliferum, food plant of Thrips madronii 22 



Solidago {see also Goldenrod). 



canadensis, Idolothrips armatus taken in galls 34 



Zygothrips lo7igiceps taken in gall 32 



Sunflower, food plant of Euthrips minutus 27 



wild, food plant of Euthrips helianthi 27, 40 



Sycamore, Acanthothrips nodicornis taken thereon 31 



food plant of Acanthothrips magnafemoralis 31 



Tansy, food plant of jEolothrips fasdatu^ 22 



Terebrantia 10 



Thistle, food plant of Euthrips citri 26 



Thripid^ 10, 11-12 



Thrips 11, 14, 22-23 



abdominalis 14, 23 



bean. (See Heliothripsfasciatits.) 



bremnerii 14, 23 



grass. (See Anaphothrips striatus.) 

 greenhouse. (See Heliothrips hxmorrhoidalis .) 



madronii 14, 22 



magnus 14, 23, 36 



onion. (See Thrips tabaci.) 

 orange. (See Euthrips citri.) 

 pear. (See Euthrips pyri.) 



perplexus 14, 23 



strawberry. (See Euthrips tritici.) 



tabaci 9, 14, 23 



tobacco. (See Euthrips fu^cus.) 



Thysanoptera, North American, bibliography of recent papers 44-46 



catalogue 21-34 



classification 10-21 



key to genera 11-13 



species 13-21 



suborders and families 10-11 



Tobacco (see also Nicotiana tabacum). 



food plant of Euthrips fuscus 27 



insularis 27 



Tomato, food plant of Heliothrips femoralis 23 



Trichothrips 12, 17-19, 30-31 



ambitus 18, 30 



americanus 18, 30 



angusticeps 18, 30 



beachi 18, 30 



brevicuralis 18, 30 



buffie 18, 30 



dens 18,30 



femoralis 18, 30 



ilex 18, 30 



dumosa 19,31 



longilubus 18, 30 



ruber 18, 30, 42-43 



smithi 18, 30 



tridentatus 19, 31 



