-338- 
INSECTS AFFECTING GREENHOUSE 
AND ORNAMENTAL PLANTS 
HAIRY CHINCH BUG ( Blissus hirtus Montd.) 
Connecticut. J. P. Johnson (June): Overwintered adults very numerous on 
the site of an old infestation, numbering as high as 50 to 70 por 
square foot. Warn days and drought conditions favorable for their 
development. 
Pennsylvania. H. E. Hodgkiss (June 22): Large numbers of adults observed 
in Philadelphia County on May 24. No eggs found. 
A SOD WEB WORM ( Cr ambus trisectus Walk. ) 
South Dakota. H. C. Severin (June 5) : Found to be very abundant at Hot 
Springs, where caterpillars have been doing much damage to lawns. 
A BEETLE ( Dichromana sp.) 
Arizona. C. D. Lebert (June 23): Larvae numerous in lawns during early 
Juno, and severe damage to several lawns observed. Adults taken 
around lights during the middle of June. 
A SPIDER MITE (P aratctranychus ilicis McG.) 
District of Columbia.. L. G. Baumhofer (May l6) : Specimens of spider mites 
taken from heavily infested parts of an ornamental hemlock tree in 
Spring Valley on May 15. Conspicuous webbing on and between needles, 
and considerable discoloration of the foliage. (Det. by E. A. 
McGregor. ) 
ARBORVITAE 
ARBORVITAE LEAF MINER ( Argyresthia thuiella Pack.) 
Maryland. E. N. Cory (June 15): Found at Pikesville attacking arborvitae. 
EUROPEAN FRUIT LECANIUM ( Lecanium corni Bouche) 
Ohio. J. S. Houser (June 12): Infestation on arborvitae at Fort Jennings 
and Columbiana sufficiently heavy to cause damage. Eggs beginning 
to hatch. 
BUTTERFLYBUSH 
NEGRO BUG ( Allocori s pulicaria Germ. ) 
Alabama. J. M. Robinson (June 19): Very abundant on butterflybush on 
June 12. (Det. by H. G. Barber.) 
