Destructive Forest Insects of Dumfriesshire. 269 



Oak Galls. 



Neu voter us Fn mi fen ?i is. 



Neuroteriis Njiinismatis. Button Gall. 



Apliilothrix Fecundatrix. Artichoke Gall. 



Dryophatita Scutellaris. Cherry Gall. 



Dryophanta Longivcntris . 



Dryophauia Divisa. 



Teras Termiiialis. Oak Apple. 



Cynips Kollari. Marble Gall. 



Gall Mites. 



Eriophes Tiliae. Nail Gall, on Lime. 

 Eriophes Laevis. Found on Alder. 

 Eriophes Axillaris. Found on Alder. 

 Eriophes Fraxini. Found on Ash. 



Two-winged Flies. 



Cecidomyia Marginemiorquens. Found on Willow. 



Cecidomyia Tiliatn Voietis. Found on Lime. 



Diplosis Dryobia. Found on Oak. 



Hotmomyia Piliger. Found on Beech. 



Hormomyia Capreae. Found on Goat AVillow. 



Chromatomyia Iticis. Found on Holly. 



Chromato77iyia Obsairella. Found on Woodbine. 

 Aphididae. 



Phyllaphis Fagi. Found on Beech. 



Chermes Laricis. Found on Larch. The damage of the latter 

 is too well known to need any description here. Its effects 

 are too plainly seen in the Larch plantations, not only in 

 this county, but all over the country. 



Phylloxera Punctata. Found on Oak. 



Chermes Abietis. Found on Spruce. 



Scale Insects. 



Cryptococcus Fagi. Found on Beech. 

 Apterococcus Fraxini. Found on Ash. 



