20 



Com mo\ Name 



Ash tree borer 

 Plant lice 



MONTANA BULLETIN 200 



SHADE AM) FOREST TREES 

 ASH 



Scientific Name 



Podosesia fraxini Lugger 

 Aphididae 



Tarnished plant bug Lygus pratensis Linn. 

 Blister beetles (spotted) Epicauta maculata Say 

 Leaf-cutter bees Megachilidae 



Locality 



Great Falls 



Philipsburg 



Helena 



Glasgow 



Big Sandy 



Conrad 



Kalispell 



Date 

 1925 1926 



Feb. 3 

 Mar. 21 

 June 16 

 June 15 

 July 6 

 Aug. 29 



Aug. 10 



Leaf-rollers 

 Box elder aphis 



Ladybird beetle larva 

 Glover's silkworm 

 Cottony maple scale 



BOX ELDER 



Sp. undetermined 

 Periphyllus negundinis Thos. 



Sp. undetermined 

 Sam la gloveri Strecker 

 Pulvinaria vitis Linn. 



Havre 



Fort Benton 



Laurel 



Culbertson 



Culbertson 



Billings 



Hamilton 



Grantsdale 



Jan. 27 



May 11 



June 6 



June 18 



June 18 



July 26 



June 14 

 June 26 



Vagabond poplar gall 



it n 



Asnen borer 



a n 



tt a 



(< tt 



tonwood aphis 



Cottonwood leaf-miner 

 a tt tt 



Cottonwood leaf-beetle 

 Chrysomelid beetle 

 Cottony maple scale 



COTTONWOOD 



Hordurilkoja vagabunda Walsh 

 tt tt tt 



tt a tt 



tt a tt 



Saperda calcarata Say 



Sp. undetermined 

 tt a 



iphigus populicaulis Fitch. 



Zuegophora scutellaris Suff. 

 a tt a 



I. inn scripta Fab. 

 Lina scripta Fab. 

 Pulvinaria vitis Linn. 



