-126- 
affeoted ants were in a moribund condition, being on their baoks and in- 
capable of loo emotion although movements of the legs, antennae, and 
mouth parts oocurred occasionally; and after 24 hours all the ants were 
dead* The ants in the control remained unaffected throughout the test 
period*— J. (225). 
Camponotus hercuieanus pennsylvanicus (Deg*), the black carpenter ant 
Carpenter ants in poroh columns and in the hollow center of maple 
trees were eliminated with 5-peroent DDT dust*— H* J* Agr* Expt* Sta* 
(276). 
Camponotus spp*, carpenter ant 
In the Superior National Forest in Minnesota 17 log cabins were 
sprayed with 1- and 5- percent solutions of DDT in kerosene* Satis- 
factory control was obtained with a 5-peroent solution*— Craighead and 
Brown (125)* 
Irldomyrmex humilis Mayr, the Argentine ant 
A kerosene spray containing 5 peroent of DDT is extremely toxio to 
Argentine ants and has been successfully used around the casings of doors 
and windows of masonry buildings* The ordinary frame house, however, 
provides many entrances for this insect; under these conditions, stan- 
dard Argentine ant poisons plaoed around the outside of the house are 
far more effective than an attempt to treat all the interior*— Freeborn 
(160)* 
Lasius nlger alienus americanus Bnery, the cornfield ant 
Three applications at 4- to 8-day intervals of a 5-percent DDT dust 
(a small pinch per nest) failed to give complete control, although the 
number of nests was reduced by about four-fifths*— Ross (506 ) * 
Monomorium pharaonis (L*) , the Pharaoh ant 
A field test with 1 peroent of DDT in kerosene was disappointing* 
A further trial in which the concentration was 5 peroent and the walls 
were sprayed to leave about 100 mg* of DDT per square foot aohieved a 
very great reduction in infestation*— Buxton (100 ) . 
Solenopsis molesta (Say), the thief ant 
An ant (presumably the thief ant) attacking beets was killed and 
driven away by one treatment of Gesarol A-3 dust*— Parker (287 ) • 
