74 Miscellaneous. 



vegetation. I may add, that not only the study of the latter insects, 

 but also a knowledge of plants and of their dependence on soil and 

 climate, is requisite as a preliminary to the examination of parasitic 

 insects. 



Detomyia Boleti, Kalt. Lives in Boletus {Polyporus) igniarius, the 

 hard tinder boletus. 



Mycetobia pallipes. Lives in the sap of Ulmus campestris, the com- 

 mon elm. 



Ctenophora "l-maculata, Meig. Lives in the old wood of Carpirms 

 Betulus, the hornbeam. 



nigricornis, Meig. Lives in the old wood of Quercus Rohur, the 



oak. 



Lasioptera argyrosticta, Meig. Lives in the galls on the stem of 

 Rubus vulgaris, the bramble. (Eurytoma rufipes has been reared 

 from the galls of this plant, and is probably a parasite of Lasi- 

 optera argyrosticta.^ 



Cecidomyia Galeobdolontis , Kalt. Lives in the knobs by the roots of 

 Galeobdolon luteum, yellow dead-nettle. 



Brassicce. Lives in Brassica Rdpa, the turnip. 



Spartii, Kalt. Lives in the knobs of the deformed flower of 



Spartium, the broom. 



Stachydis, Kalt. Lives in the top leaves of Stachys sylvatica, 



the hedge-nettle. 



Spirece. Lives in the galls on the leaves of Spiraea Ulmaria, 



the meadow-sweet. 



Cardui. Lives in the receptacle of Carduus and of Cirsium, the 



thistle. 



Hieracii, Kalt. Lives in the receptacle of Hieracium Pilosella, 



the mouse-ear hawkweed. 



Nepetce, Kalt. Lives in the top leaves of iViepe^a Cataria, cat- 

 mint. 



Bryonice, Kalt. Lives in the top leaves of Bryonia, bryony. 



Aceris. Lives in the galls oi Acer pseudo-platanus, the syca- 



more. 



Medicaginis, Kalt. Lives in the knobs of the deformed flower 



of Medicago falcata, yellow medick. 



— Polygoni, Kalt. Lives in the leaves of Polygonum amphibium, 

 spotted persicaria. 



— Rumicis, Kalt. Lives in Rumej obtusifolius, the broad-leaved 



dock. 



— Veronicce, Meig. Lives in the leaves of Veronica Chamadrys, 

 germander. 



— Pliirmicce, Kalt. Live, in the flowers of Achillea Piarmica, 

 sneeze wort. 



— JJrticcB, Winnertz. Lives in the galls on the leaves of Urtica 



dioica, the nettle. 



— PmijRatzb. Lives on the leaves of .^/;., .v .<;lu€siris, Scotch pine. 



— PocB, Kalt. Lives in the galls on th: culiiis oi Poa nemoralis, 

 wood meadow-grass. 



— Salicis. Lives in the to]) leaves of the twi^s of Salia: alba, 

 common white willow. 



