INDEX. 203 



Page. 



Sciam sp., sulphur dioxide as insecticide 1^5 



Scolytus rugulosus, in Georgia 77-78 



on apple and peach in Texas 68 



healthy trees 78 



Scurfy scale. (See Chionasjxisfvrfura.) 



Scymnids, introduction, into Hawaii - 60 



Scymnus debilis, enemy of Pseudococcus sp. introduced into Hawaii 60 



Seeds, sulphur dioxide destructiv<- to germinating power 142, 149, 150, 151-153 



fumigation with carbon bisulphid 91-92 



Sericulture, importance to entomologist -1 



prospects in United States 20-21 



Setaria, food plant of Aphis maidi-radicis - 35 



Shade-tree insects in Ohio - 72-74 



Shade trees, injury by Hemerocampa leucostigma 90 



Sharpshooter. (See Oncometopia undata.) 

 Shot-hole borer. (See Scolytus riigidosvs.) 

 Silk culture. {See also Sericulture.) 



in Hawaii - 64 



sometimes eaten by Lepisma saccharina 176 



Silkworm, as illustrative material in teaching 21 



S-ilvanvs surinamensis , Ateleopterus iarsalis a parasite 148 



sulphur dioxide as insecticide 145, 146 



Silver-fish. (See Lepisma saccharina.) 



Sitotroga cerealella , in stored corn in Texas 69 



Smart weed, food plant of Aphis maidi-radicis 34-35 



Smith, R. I., and A. C. Lewis, paper, "Some Insects of the Year in Georgia" 77-82 



Soap solution, remedy for ScJiizoneura fodiens - - 170 



solutions, against first larval stage of Acridimn purpuriferum 174 



Soil fumigation, in greenhousts, impracticability of hydrocyanic-acid gas 154 



Soldier bug, spined. (See Podisus niaculivenfris.) 



Solenopsis geminaia, injury to oranges in Cuba 70 



Spalangia hirta, parasite of Haewatobia serrata in Hawaii 63 



Sphenophorus ohscurus, cultural methods as remedy 63 



introduction into Hawaii 59 



Sphinx, catalpa. (See Ceratomia catalpse.) 

 Spined soldier bug. (See Podisus maculiventris.) 



Spirillum of cholera, spread by flics 17 



Spittle insects. (See Philsenus lineatus and P. spumaria.) 



Spray outfit, the one used agamst Acridium purpuriferum 172 



Stalk borer. (See Papaipema nitela) 



Starch, not eaten by Lepisma saccharina 174 



Staves, of ice-cream freezers, mjury by Derrrtestes vidpirnis 75 



Stegomyia (calopus) at St. Louis 24 



calopus, formaldehyde fumigation tests 139 



in Kentucky 16 



and Indiana 74 



not yet taken in Ohio 74 



prevention of breeding in control of yellow fever 102 



pyretlirum fumigation tests 139 



sulphur fumigation in control 139 



tobacco fumigation tests 139 



fasciata^ Stegomyia calopus. 

 Stereopticon, use in chart making in boll-weevil laboratory 118-119 



