INSECT NOTES FOR I9IO. 23 



Hyalopterus arundinis (Fab.) 

 An especiall}^ heavy infestation of H. arundinis occurred on 

 a variety of large green plum trees at Orono this season. Later 

 in July the leaves on the ventral surface were so thickly packed 

 that there was "beak room only" for the aphids present, the rest 

 of their bodies being pressed out from the leaf and supported 

 by one another. No tendency of leaf curl was manifested, the 

 leaves remaining perfectly flat. (Aphid 79-10). 



Tetraneiira graminis (colophoidea). 

 Through a misprint on page 208 of Bulletin 181 of this Station 

 the name of this insect appeared written as a trinomial. Colo- 

 phoidea should have been enclosed in braces as it here appears. 



Chcrmcs coolcyi in Nciv England. 

 Typical large, well- formed galls of Chermes cooleyi Gillette 

 were received from Manchester, Mass., in September 1910, 

 where they were taken on Colorado Blue Spruce. • As this tree 

 is not generally grown in the east the infestation is of especial 

 interest. In Chermes of Colorado Conifers, Proceedings of the 

 Academy of Natural Sciences of Philadelphia, 1907, Professor 

 Gillette states that in Colorado this species migrates to. red fir, 

 (Psciidotsuga nincronata) and that he finds the galls most numer- 

 ous in parks or lawns where the blue spruce and red fir are 

 clustered together. This fact in the life history is significant 

 for its possible economic bearing. In plans for landscape gar- 

 dening in the east which include the Colorado Blue Spruce, it 

 would seem wise not to plant the red fir or closely allied varie- 

 ties on the same or neisfhborine estates. 



