726 



INDEX. 



siphonella, Aphis. 



sipJionina, Ensina. 



Siphonophora rosae (see 3Iacrosi- 

 phum). 



SipJionophora salicicola, synonym 

 of Aphis saliceti, 257. 



Siphonophora solani (see Bhopalosi- 

 phum). 



s iphonophorae, Pachyneuron. 



Sirex gigas (Giant Wood Wasp), in 

 conifers in Britain, 159. 



Sirex noetilio (Steel-blue Wood 

 Wasp), in conifers in Britain, 159. 



Sitka Spruce (see Picea sitchensis). 



Sitodiplosis mosellana, on barley in 

 Sweden, 150. 



Sitodrepa panicea, control of, in 

 bouses in Britain, 160 ; infesting 

 stored food in Connecticut, 457 ; 

 on tomatoes in Sweden, 147. 



Sitona (see Sit ones). 



Sitones, food-plants of in Britain, 

 327, 435. 



Sitones hispidulus, on lucerne in 

 Michigan, 340. 



Sitones lineatus, control of, on 

 beans and peas in Britain, 509 ; 

 control of, on vegetables in 

 Germany, 6 ; bionomics of, in 

 Sweden,"^92, 147. 



Sitotroga cerealella (Angoumois 

 Grain-moth), infesting stored 

 wheat in Argentina, 143 ; inter- 

 cepted in quarantine in Hawaii, 

 543 ; attacking bamboo seeds in 

 India, 519 ; on maize in Sweden, 

 149 ; bionomics etc. of, in U.S.A., 

 69, 202, 246, 438, 457, 491 ; 

 infesting stored maize in New 

 South Wales, 337 ; fumigation 

 with chlorpicrin against, 491. 



sjostedti, Stictococcus. 



Skunk, destroying noxious insects 

 in N. America, 17, 308, 364. 



Sky-lark, importance of protection 

 of, in Britain, 510. 



Sloe, Eyalopterus arundinis on, in 

 Sweden, 146. 



smaragdina, Dalpada : Oecophylla. 



Smartweed (see Polygonum vir- 

 ginianum). 



smerintha, Myelobia. 



Smerinthus oceUatus (see Sphinx). 



smilacisella, Marmara (Phylloc- 

 iiisiis). 



Smilax, Marmara smilacisella on, 

 in Massachusetts, 21. 



smithi, Phytalus. 



smithiae, Melanoxantherium ; Ptero- 

 comma. 



Snails, spreading Gronartium ribi- 

 cola in greenhouses, 9. 



snelleni, Acanthopsyche. 



Snow Scale (see Chionaspis citri). 



Snowball (see Yiburniim). 



Snowy Tree Cricket (see OecaniJius). 



Soap, in sprays, 15, 16, 27, 28, 55, 

 73, 74, 80, 95, 98, 109, 111, 

 144, 145, 164, 174, 179, 201, 213, 



215, 216, 229, 238, 245, 267, 279, 

 300, 316, 319, 320, 341, 367, 368, 

 370, 371, 379, 381, 389, 407, 411, 

 412, 415, 424, 425, 432, 434, 435, 

 436, 442, 443, 449, 456, 469, 470, 

 471, 487, 495, 509, 547 ; formulae 

 containing, 15, 16, 74, 109, 215, 



216, 238,^243, 267, 300, 379, 407, 

 469, 470, 471, 495 ; properties 

 of, in insecticides, 398 ; affecting 

 efficacy of oil emulsions, 487 ; 

 in preparation of commercial 

 sulphur pastes, 291 ; in repel- 

 lents for bark-beetles, 434, 436, 

 541 ; and tobacco, not recom- 

 mended against Cydia molesta, 

 370, 



sobrimts, Agriotes. 



Soda, and resin, in formulae against 

 scale-insects, 16 ; and soaj), as 

 a repellent for bark-beetles, 436. 



sodalis, Apanteles. 



Soda-sulphur, formula for spraying 

 with, against citrus pests, 217. 



Sodium Arsenate, 361 ; in bait 

 for ants, 461 ; addition of, to 

 lime and copper sidphate spray 

 against Copnodis, 401 ; and lime, 

 in formula against Haltica ampe- 

 lophaga, 414 ; method of poison- 

 ing Oryetes rhinoceros with, 261 ; 

 and megass, for poisoning sugar- 

 cane grubs, 323 ; experiments 

 with, against vine moths, 73; 

 and Bordeaux mixture, 362. 



Sodium Arsenite, 361 ; a substitute 

 for chloral hydrate in baits for 

 ants, 314 ; experiments with, in 

 baits for Blissus leucoptera, 305 ; 

 in baits for cutworms and army- 

 worms, 396 ; unsuitable for baits 

 for cutworms, 538 ; and molasses, 

 against fruit -flies, 242, 293, 518 ; 

 in baits for Hylemyia antiqua, 84, 

 122, 202, 255, 555 ; in sprays 

 and baits for lociists and grass- 

 hoppers, 31, 347, 358, 359, 500, 

 555 ; injurious effect of, on 

 plants, 299, 300. 



Sodium Bicarbonate, ineffective 

 against clothes moths, 532. 



Sodium Carbonate, spray formulae 

 containing, 74, 215, ' 439, 470, 

 471 ; ineffective against cock- 

 roaches and clothes moths, 532. 



Sodium Chloride (Salt), effect of 

 treating stored peas with, against 

 Bruchids, 463 ; in formula for 

 Fuhrmann's solution against 

 Eriosoma lanigerum , 407 ; spray- 

 ing with, against Pieris, 509 ; 



