SPECIAL PROBLEMS OF INSECT CONTROL 155 



burrowing flea (chiefly tropical) Sarcopsylla penetrans ; hen flea (bur- 

 rows into the eyelids of fowls), Southern states Xestopsylla gallinacea. 



This group was formerly classed with the diptera but is 

 now usually given as an order by itself, the Siphonaptera 

 (siphon, " a sucking tube " ; a, " without" ; pteron, " wing" 

 " wingless bloodsuckers"). 



WHITE ANTS : Termites Termes flavipes-. These are not ants, but 

 belong to another order, the Isoptera (isos, "equal"; pteron, "wing"). 

 Destructive to wood of buildings and furniture and even to living trees. 



HOUSE ANTS : Red ant Monomorium pJiaraonis ; little black ant 

 Monomorium minutum ; pavement ant Tetramorium caespitum. 



BEETLES : Larder beetle Dermestes lardarius ; drug-store beetle 

 sitrodrepa panicea', meal worms Tenebrio molitor and T. obscurus; 

 Indian-meal moth Plodia interpunctella. 



The above are only a few of the more important household 

 insect pests. Many others may be found by searching the 

 house, and can be identified, if they present interesting local 

 problems, by reference to the books mentioned at the end of 

 this chapter. The fact that no headway is made in the fight 

 with these enemies is due chiefly to lack of organized coopera- 

 tion. One family exterminates them and is reinfested from a 

 neighbor who does the work at some other time. 



INSECTS INJURIOUS TO VEGETATION 



ORCHARD PESTS : Codling moth Carpocapsa pomonella; tent cater- 

 pillars (apple-tree) Clinocampa americana ; fall webworm Hyphantria 

 cunea; cankerworms (spring Paleacrita vernata; fall Anisopteryx 

 pometaria') ; yellow woolly bear Spilosoma virginica ; curculio beetles, 

 weevils (apple Anthonomus quadrigibbus ; plum Conotrachelus nenu- 

 phar', quince Conotrachelus crat&gi; grape Craponius incequalis; 

 borer beetles ; round-headed apple-tree Saperda Candida ; flat-headed 

 apple-tree Chrysobothris femorata (also attacks the plum) ; pear-blight 

 beetle Xyleborus pyri ; pear-tree borer JEgeria pyri ; cherry-tree borer 

 Dicerca divaricata; peach-tree borer Sanninoidea exitiosa; apple-twig 

 borer Amphicerus bicaudatus) ; sphinx moths ("humming-bird" moth) 

 (plum Sphinx drupiferarum ; green grapevine Ampelophaga myron); 



