802 



INDEX. 



Siphocoryne capreae (see Cavariella). 



Siphocoryne ligustyi (see Rhopalo- 

 siphnm). 



Siphonaphis padi [Aphis avenae) 

 (Oat Aphis), on cereals and fruit- 

 trees in Denmark, 193, 194 ; 

 bionomics and control of, in 

 U.S.A., 206, 353, 435, 524, 526 ; 

 parasitised by Leucopis nigri- 

 cornis, 39. 



Siphonophora cerealis (see I\Iacro- 

 siphitm granarimn) . 



Siphonophora padi (see Siphonaphis) . 



Siphonophora uhnariae (see Acyrtho- 

 siphon pi si). 



siphonophorae, Propachyneiironia. 



Sirex (Wood Wasp), a minor forest 

 pest in Britain, 488. 



Sirex gigas, ovipositing on pine and 

 larch in Ireland, 152. 



sirina, Petasobathra. 



siro, Tyroglyphus. 



Sisal {Agave sisal ina), termites on, in 

 Northern Australia, 354 ; pests 

 of, in Dutch East Indies, 47, 299 ; 

 Chrysomphaliis aurantii on, in 

 Kenya Colony, 395. 



Sissu (see Dalbergia sissoo) . 



Sitka Spruce (see Picea sitchensis). 



Sitodiplosis moscllana, on wheat in 

 Denmark, 363. 



Sitodrepa (Anohium) panicea (Drug- 

 store Beetle), in onion seed in 

 Barbados, 456 ; in Canada, 124 

 in stored grain in Denmark, 193 

 damaging books in Fiji, 481 

 bionomics of, in Germany, 36 

 fumigation against, 124, 481 

 parasites of, 36, 258. 



Sitona, on peas in Britain, 487 ; 

 notice of key to British species 

 of, 171 ; on dwarf and soy beans 

 in Germany, 592 ; on clover in 

 Russia, 348. 



Sitona crinita, in Russia, 329. 



Sitona flavescens, on forage crops in 

 U.S.A., 305, 389. 



Sitona hispidida (Clover Root Cur- 

 culio. Clover Root Weevil), on 

 forage crops in U.S.A., 305, 389. 



Sitona lineata, bionomics of, in 

 Britain, 170 ; food-plants of, in 

 Denmark, 193, 363 ; on beans in 

 France, 23 ; in Russia, 329. 



Sitona sidcifrons, on Atropa in 

 Germany, 277. 



Sitones (see Sitona). 



Sitophilns (see Calandra). 



Sitotroga cerealella (Angoumois 

 Grain Moth), in stored Sorghum 

 in East Africa, 432 ; intercepted 

 in maize in California, 265, 266, 



514 ; in stored grain and bamboo 

 seeds in India, 272 ; in maize 

 in Mexico, 233, 366 ; in barley in 

 Spain and Balearic Islands, 209 ; 

 in U.S.A., 239, 314 ; measures 

 against, in stored grain, 233, 314, 

 592 ; natural enemies of, 315. 



sjostedti, Prolatoia. 



Skunks, destro>dng noxious insects 

 in North America, 129, 484. 



Sloe (see Primus spinosa). 



Slugs, on sweet potato in Barbados, 

 456 ; destroyed by rooks in 

 Britain, 54 ; measures against, 

 on vegetables in Virgin Islands, 

 430. 



Small Moth Borer (see Diatraea 

 saccharalis). 



sinaragdina, Oecophylla. 



smaragdinus, Hyalopeplus ; Pachy- 

 larthus. 



Smartweed Borer (see Pyrausta 

 ainsliei). 



Smicra delira, parasite of Eulia vehi- 

 tinana in U.S.A., 312. 



S)nicra torvina, parasite of Eidia 

 veliitinana in U.S.A., 312. 



sniithi, LacJinosterna (Phytalits). 



smithiae, Pteroconuna. 



Smoky Crane Flv (see Tipula infiis- 

 cata) . 



Sniyjnothrips biiincinatus, on dwarf 

 and soy beans in Germany, 592 . 



Sniynthiirus, on beans and cu- 

 cumbers in Denmark, 194. 



Snivnthiirus viridis (Lucerne Flea), 

 measures against, in Australia, 

 492. 



Snapdragon, Tarsononus pallidiis 

 on, in U.S.A., 434. 



snelleni, Acanthopsyche. 



Snow Scale of Citrus (see Chionaspis 

 citri). 



Snow-white Linden INIoth (see 

 Ennomos subsignariiis) . 



Snowberry (see Syinphoricarpus 

 racemosiis). 



Snowy Tree-cricket (see Oecanthiis 

 nivens). 



Soap, 184 ; as a spray, against 

 Aphids, Coccids and Psjdlids, 

 239, 333, 368, 439, 552 ; as a 

 spray against vine moths, 421 ; 

 in mixed spravs, 8, 59, 83, 85, 

 86, 106, 121, 130, 141, 152, 166, 

 180, 194, 204, 221, 225, 278, 280, 

 291, 317, 321, 326,379,399,400, 

 401, 406, 414, 420, 423, 426, 430, 

 447, 456, 474, 475, 479, 491, 

 500, 518, 524, 526, 527, 528, 535, 

 540, 546, 551, 570, 571, 575, 576, 

 590, 591 ; formulae containing. 



