TRAILL S AND ALDER FLYCATCHERS. 



63 



Dectes spinosus 1 



Donatio, subtilis 1 



Orsodachna atra 1 



Lema trilineata 1 



Cryptocephalus quadruplex 1 



Cryptocephalus leucomelas 1 



Cryptocephalus venustus 1 



Cryptocephalus fulguratus 1 



Pachybrachys abdominalis 1 



Monachus saponatus 1 



Glyptoscelis albidus 4 



Diabrotica soror 1 



Trirhabda tomentosa 1 



Galerucella sagittaria 1 



Blepharida rhois 1 



Disonycha melicollis 1 



DIPTERA. 

 Lestomyia sp 1 



HEMIPTERA. 



Crepidodera helxines 



Systena elongata 



Microrhopala dimidiata. 



Odontota dorsalis 



Bruchus prosopis 



Dircsea liturata 



Pyrota schwarzii 



Coleocerus marmoratus. 



Sitones flavescens 



Dorytomus laticollis 



Anthonomus grandis. . . 

 Tylodermafoveolatum. . 

 Rhinoncus pyrrhopus.. . 



Pseudobaris far eta 



Scolytus muticus 



Tettigonia atropunctata II Sinea diadema. 



Blissus leucopterus 2 | 



Tettix sp. 



Dermacentor occidental! 



ORTHOPTERA. 



ACARINA. 



MOLLUSCA. 



Pupa corticaria. 



Vegetable food. — The vegetable portion of the food amounts to 

 but 3.95 per cent of the whole and was mostly eaten in September. 

 Elderberries were found in 6 stomachs, blackberries or raspberries 

 in 2, dogwood berries hi 1, juniper berries in 1, fruit not further 

 identified in 3, seeds unknown in 2, and rubbish in 1. The last two 

 items were probably taken accidentally with other food. 



The following fruits were identified : 



Juniper berries ( Juniperus virginana) 1 

 Elderberries (Sambucus canadensis)., 3 

 Elderberries (Sambucus glauca) 3 



Rough-leaved dogwood (Cornus as- 

 perifolia) 1 



Blackberries orraspberries(i?M6wssp.) 2 



Summary. — It is evident from the nesting habits of this species that 

 it is not likely to injure any product of industry, and the contents of 

 the stomachs examined corroborate this observation. The bird's 

 function in nature then is to assist in keeping insects down to such a 

 level of abundance as consists with the best interests of both plants 

 and insects. 



