INDEX. 43 



Page. 



Toxoptera caricis, characters, host plant 8 



Toxoptcra clematidis, characters, host plant 8 



Toxoptera graminum — • 



characters, liost plants 8 



mistaken detemiination of Toxoptcra muhlenbergix 1 



Toxoptera, key to species of genus 8 



Toxoptera vwthlenhergix — 



age wlien individuals begin reproducing 13 



article 1-16 



characters, host plant 8 



continuous-generation experiments 9-13 



distribution 9 



egg, description 5 



egg mortality 15 



fecundity of ovi])arous females 14 



fecundity of summer forms 13 



feeding habits 9 



host plants 9 



length of life of viviparous forms 13 



life history 9-16 



molting 13 



n. sp., description 1-8 



o\dposition place 14 



rearing methods 15-16 



sexes, life history 13-14 



stem-mother, dcscrijjtion of instars 6-8 



■winged vi^•iparous female, description 1-3 



■wingless male, description 3-4 



Avingless oviparous female, description 4-5 



■ftdngless viviparous female, description 3 



Toxopicra scirpi, ciiaracters, host plants 8 



Toxoptera variegala, characters, host plant 8 



Tri/olium medium perenne, food plant of Callipterus trifolii 19 



Trifolium pratense, food plant of Callipterus trifolii 19 



Trifolium repens, food plant of Callipterus trifolii. ., 19 



Trifolium spp., not food plant of Callipterus trifolii in India 19 



Vetch, spring, not food plant of Callipterus trifolii 19 



Weather conditions in control of Callipterus trifolii 39 



Wheat- 

 host plant of Toxoptera graminum 8 



host plant of Toxoptera mxihlenbergix 9 



o 



I 



