66 THE ARGEXTIXE AXT. 
LIST OF COCCID.E AXD APHTDID.E ATTENDED BY THE ARGENTINE AXT. 
Upon bamboos: Asterolecanium bambusx Bdv., Odonaspis secreta Ckll., Odonaspis 
inusitata Green. 
Upon banana: Coccus hesperidum L.. Chrysomphalus aonidum L. 
Upon cotton: Aphis gossypii Glov. 
Upon com: Undetermined aphis (probably Aphis maidis Fitch). 
Upon figs: Pseudococcus citri Risso, Lecaniodiaspis sp., Aspidiotus camellias Sign. 
Upon hickory, elm, hackberry, and various shade trees: Pseudococcus sp.. Ceroplastes 
cirripediformis Comst., Ceroplastes floridensis Comst., Chionaspis longiloba Cooler. 
Chionaspis americana Johnson. 
Upon magnolias: Neolecanium cornuparvum Thro, Aspidiotus camellia: Sign.. Tgumey- 
ella turgida Ckll. 
Upon mulberries: Chrysomphalus tenebricosus Comst. 
Upon oaks: Kermes galliformis Riley. Eulecanium caryse Fitch, Eulecanium quer- 
cifex Fitch, various aphidids. 
Upon orange: Coccus hesperidum L., Parlatoria pergandii Comst.. Lepidosaphes beclcii 
Xewm., Lepidosaphes gloverii Pack., Chrysomphalus aonidum L., Aphis gossypii 
Glov.; also the white fly, Aleyrodes citri R. & H. 
Upon palms and other ornamentals: Coccus hesperidum L.. Eucalymnatus tessellatus 
Sign.. Aspidiotus latariim Sign.. Aspidiotus hederx Yall.. Chrysomphalus dictyospermi 
Morg. 
Upon peach, pear, and other fruits: Aspidiotus perniciosus Comst.. Aulacaspis penta- 
gona Targ. , various aphidids. 
Upon persimmons: Ceroplastes cirripediformis Comst., Eulecanium corni Bouche, Pulvi- 
naria vitis L. 
Upon strawberry: Aphis forbesi^eed. 
Upon sugar cane: Pseudococcus calceolaria; Mask.. Aphis gossypii Glov. 
Upon sweet gum: Cryptophyllaspis liquidambaris Kotinsky. 
Upon various shrubs: Coccus hesperidum L.. Saissetia olese Bern.. Pulvinaria cupanxse 
Ckll., Aspidiotus latanix Sign.. Chrysomphalus aonidum L. 
Upon willows: Eulecanium nigrofasciatum Perg., Pseudococcus sp. inearcitrv. Chion- 
aspis salicis-nigrse Walsh, Aspidiotus perniciosus Comst., various undetermined 
aphidids. 
Iii considering the remarkable increase in scale insects and aphidids 
which invariably accompanies heavy infestation by this ant one can 
not avoid taking into account the persistence with which the ants 
drive away ladybird beetles which attempt to prey upon the insects 
fostered by the ants. So thoroughly are the Coccidse and Aphididas 
protected in this manner that it is rare that a ladybird can be found 
at all on the infested trees. The only exceptions to this rule thus 
far noted are a species of Pentilia, a few specimens of which the 
senior author found in an infested orange grove below Xew Orleans, 
and the coccinellid mentioned before as preying upon the magnolia 
scale. 
AXTAGOXISM TOWARD OTHER IXSECTS. 
The Argentine ant is strongly antagonistic to nearly all forms of 
insect life, with the exception of the Coccidge and Aphididae. The 
amount of damage it is able to inflict upon other insects, however, is 
governed by the strength, fleetness, structure, or habits of the 
