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I IT SECTS AFFECTING GREENHOUSE 
AND ORNAMENTAL PLANTS 
MEXICAN MEALYBUG ( Fnenacoccu s gossypii Towns. & Ckll.) 
Illinois '7. P. Flint (June 15): A survey of the greenhouses in Illi- 
nois has shown that this mealybug is widely distributed over 
the State outside of the northeast section. While this spe- 
cies has "been found in several greenhouses in Cook County it 
is not generally distributed there. It is a serious pest of 
Chrysanthemums, geranium, and 73ot and bedding plants. 
GREENHOUSE CENTIPEDE ( Scutigerella i mmaculata Newp. ) 
Illinois W. P. Flint (June 15): This pest completely destroyed sweet 
peas and chrysanthemum cuttings in raised benches at Des 
Plaines. 
A THRIPS ( Heliothrips femoralis Reut.) 
Illinois W. P. Flint (June 15): In a recent survey of greenhouses 
in southern Illinois this thrit>s was found to be a serious 
pest of stevia, chrysanthemum, calla, snapdragon, and smilax. 
Greenhouse men have not been troubled with this thrips until 
recently. 
A WEEVIL ( Pseudocneorrhinus setosus Roelofs) 
Connecticut W. E. Britton (June 6): This Japanese weevil was first col- 
lected in New Haven in 1920. More specimens were taken in 
1921 and 1922. Species was identified by G. A. K. Marshall 
of the British Museum in 1923 (Conn. Bull. 256, p. 313, 1924). 
We found it feeding upon burr marigold, Bidens sp. . A hedge of 
California privet perhaps 50 feet in length and a row of Japa- 
nese barberry at one residence were stripped in 1931. Con- 
siderable injury has "oeen done this season at 'west Haven. 
ARB0R7ITAE 
AR30R7ITAE LEAF MINER ( Argyresthia thuiella Pack. ) 
Maine H. B. Peirson (June 10): The arborvitae leaf miner is very 
abundant throughout the greater part of the State. 
New York E. P. Felt (June 24): The arborvitae leaf miner is reported 
as abundant in the Adirondacks about Saranac Lake. 
LIBRARY 
STATE PLANT 66ARB 
