INDEX. 157 



Xishtshade, common. (See Solarium nigrum 



Ononis, food plants of Phytonom us n igrirostris 1 



spiaosa, food plant of Phytonom us n ig 1 



Opororn is tolmei, enemy of Tipulidae 130 



Oriole. Baltimore. (See / is galbula. 

 Bullock. See let* ; 



j stricta, food plant of Aphis maidi-radicis 102 



■ us \ ociferus, enemy of Sitones nispufulus 



Tipulidae 129 



Pachyrlnna ferruginea, Empusa sp. an enemy 130 



flying in March and April 



- i -nd brood flying in August and September 



macrocera, flying in March and April 120 



most species flying in June 120 



semiaquatic in early stages 120 



sodalis, flying in August and September 120 



cuius sandu ichensis, enemy of Tipulidae 120 



ella Uiaca, enemy of Tipulidae 130 



ina nivalis, enemy of Tipulidae 120 



Pasturing against ' - meadow maggots " 130. 131 



in its effects on IL 03-04 



Peas, food plants of Siton ■ tllis and 8. lineatus 



i- Pea weevils." I See Sitones puncticollis and S. lineal 



Penthestes atricapillus, enemy of Tipulidae 130 



carolinensis, enemy of Tipulidae 130 



gambeli, enemy of Tipulidae 130 



Pepper grass. (See Lepidium apetalum. 



water. (See Polygonum hydropiperoid 



helidon luni/rons, enemy of Tipulidae 130 



Pewee. western wood. (See Myiochanes riehardsm 

 wood. (See Myioeharles mn 



Pheidole dentata comutata, attendant on Aphis maidi-radicis 102 



sp. . attendant on Aph is m iddk ton i 116 



( inelandica, attendant on Aphis maidi-radicis 102. 105 



m iddleton i 116 



Phillips, W. J., paper. 'The Slender Seed-corn Ground-beetle 



ns Lee.)" 



Philohi la m inor, enemy of Tipulidae • 129 



Phoebe. (See Sayornis ph 



black. (See Sayornis nigrica \ 

 Say. ! — Sa 



Phytori 1-12 



adult, description 11 



bibliography 12 



-'•ription 11 



dispersion, trend, and methods 4-5 



egg, description 11 



food plants 12 



history in America 2-4 



investigations in the District of Columbia and vicinity. 5-10 



larva, full-grown, description 11 



young, description 11 



natural enemies 11-12 



pupa, description 11 



isonal history 10 



