INDEX. 161 



Page. 



Tipula angulata, flying in July 120 



angustipennis, egg-laying capacity 127 



flying in May 120 



bicornis, attacking clover, grass, and wheat 120 



egg-laying capacity * 127 



flying in June. 120 



second brood flying in August and September 120 



costalis, flying in August and September 120 



eluta, flying in March and April 120 



flavicans, flying in October 120 



fuliginosa, flying in June 120 



graphica, flying in June 120 



grata, flying in July , 120 



hebes, flying in August and September 120 



infuscata 119-132 



adult, description 121-122 



description 121-126 



egg, description 122 



flying in October 120 



insect enemies 128 



larva, description 123-125 



life history 126-128 



natural enemies 128-130 



parasites 128 



pupa, description 125-126 



remedial and preventive measures 130-131 



Sporotrichum densum an enemy 130 



longicornis 131 



macrolabis, flying in August and September 120 



oleracea et al., important pests in Europe 121 



several species semiaquatic in early stages 120 



simplex, destroying clover, grass, and wheat 121 



spernax, flying in May 120 



tephrocephala, egg-laying capacity 127 



flying in June 120 



tricolor, flying in July 120 



trivittata, flying in June 120 



valida, flying in August and September 120 



virgo, flying in March and April 120 



Tipulidae, bibliography of American species in their economic aspects 132 



bird enemies 129-130 



economic importance 120-121 



fungous enemies 130 



insect enemies 128 



larvae as accidental inhabitants of man 131 



natural enemies 128-130 



parasites 128 



remedial and preventive measures 130-131 



Tit, bush. (See Psaltriparus minimus.) 



wren. (See Chamseafasciata.) 

 Titmouse, plain. (See Bxolophus inornatus.) 

 Toadflax. (See Linaria canadensis.) 



Toxostoma redivivum, enemy of Tipulidae 130 



rufum, enemy of Tipulidae - 130 



