HOST PLANTS OF LEAF-MINING INSECTS 303 



Host Insects 



19. Alnus tenuifolia ? Ill 



Alnus vulgaris Hill, see 16 



Alnus species 187, 272, 274, 



446, 447 



20. Althea rosea Cav 724, 466f 



Alum root, see 174 



21. Amaranthus retroflexus L 62, 751, 766 



22. Amaranthus viridis L 726 



Ambrosia artemisiifolia (L.), see 23 



23. Ambrosia elatior var. artemisiifolia (L.) House 205, 260, 710, 



724, 727, 740, 

 744 



24. Ambrosia psilostachya D. C 437 



25. Ambrosia trifida L 169, 175, 204, 



260, 275, 727 

 25$ Amelanchier alnifolia 466, 472 



26. Amelanchier canadensis (L.) Medic 105, 219, 532 



American aspen, see 280 



American elm, see 390 



27. Amorpha fruticosa L 356, 527 



Ampelopsis quinque folia Michx., see 289 



Amphicarpa moenica (L.) Eil., see 156 



28. Amygdalus persica L 746 



Andropogon sorghum Brot., see 179 



28$ Angelica atropurpurea 736s, 737$ 



Annual sow thistle, see 368 



29. Antennaria plantaginifolia (L.) Richards 740 



Antennaria species 455 



30. Anthyllis vulneraria L 752 



Apios tuberosa Moench., see 162 



31 . Aplopappus squamosa ? 724 



32. Apocynum cannabinum L 247 



Apple, see 213 



33. Aquilegia canadensis L 739, 749 



34. Aquilegia vulgaris L 739, 753 



35. Arabis laevigata (Muhl. ) Poir 726 



Arborvitae, see 379 



35$ Arbutus arizonica 475, 479 



36. Arbutus menziesii 277, 247$ 



Arcotostaphylos manzanita 482 



37. Arctium lappa L 704, 717 



38. Arctium minus (Hill) Bernh 717 



39. Armoracia armoracia (L.) Cockerell 751 



40. Arnica cordif olia 470 



