150 PAPERS ON CEREAL AND FORAGE INSECTS. 



Page. 



Chordeiles acutipennis texensis, enemy of Tipulidse 129 



virginianus, enemy of S (tones hispidulus 37 



Tipulidae 129 



Citronella oil against slender seed-corn ground-beetle 24-26 



Clean harvesting of sorghum as remedy against sorghum midge 58 



Clivina impressifrons : 13-28 



adult, description 17, 18 



bibliography • 28 



character of ground most liable to infestation 18-19 



depredations, records 21-24 



descriptions and life-history notes 14-19 



distribution 13 



egg, description and life-history notes 14 



generations, number 17 



hibernation 18 



injury, character 20-21 



larva, description 14-16 



life-history notes 16 



life-history notes and descriptions 14-19 



natural enemies 27 



preventive measures 27 



pupa, description 16-17 



life-history notes 17 



rearing experiments 19-20 



repellents applied to seed corn 24-26 



weather conditions during period of experiments 27 



Clover, alsike. (See Trifolium kybridum.) 



crimson. (See Trifolium incarnatum.) 

 curculio, flavescent. (See Sitones flavescens.) 



fields, burning in winter to destroy the clover-root curculio 38 



food plant of Sitones puncticollis and S. lineatus 29 



Tipula bicornis 120 



simplex . 121 



Japan. (See Lespedeza striata.) 



leaf weevil, lesser. (See Phytonomus nigrirostris .) 



mammoth. (See Trifolium medium.) 



red, food plant of Phytonomus nigrirostris ... 1, 12 



Sitones flavescens 29 



hispidulus 37 



root borer. (See Hylastinus obscurus.) 

 curculio. (See Sitones hispidulus.) 



short rotation against clover-root curculio 38 



white, food plant of Phytonomus nigrirostris 12 



Sitones flavescens 29 



hispidulus 37 



Cloves, oil, against corn root-aphis 107 



Coccyzus americanus, enemy of Tipulidae 129 



erythrophthalmus, enemy of Tipulida? 129 



Cocklebur. (See Xanthium canadense.) 



Colaptes auratus, enemy of Sitones hispidulus 37 



Tipulida) 129 



