1929] 
Index 
405 
johorensis, 96 
Rhynchium atrum, 254 
Rhynchium flavomarginatum, 255 
Rhynchotrichops subrostrata, 142 
Ropalidia cincta, 263 
Ropalidia ferruginea, 263 
Ropalidia nobilis, 263 
Ropalidiinae, 263 
Salix, 113 
Sapromyzidae, 146 
Sapyga americana, 360 
Sapyga emarginata, 361 
Sapyga interrupta, 359 
Sapyga russellensis, 360 
Sarcophaga atriceps, 141 
Sarcophagidae, 140 
Say apis pollicaris, 116 
Say apis pugnata, 116 
Say apis sayi, 116 
Scatella stagnalis , 146 
Scatophaga diadema, 144 
Scatophaga estotilandia, 144 
Scatophaga furcata, 144 
Scatophaga islandica, 144 
Scatophaga stercoraria, 144 
Scatophagidae, 144 
Scatopidae, 134 
Scellus filifer, 136 
Sciomyzidae, 145 
Scleroderma immigrans, 41, 119 
Scleroderma macro gaster, 42, 120 
Sclerodermus, 119 
Scolio centra jraterna, 145 
Sericomyia militaris, 373 
Sericomyia chrysotoxoides, 373 
Shecomyia vittata, 374 
Sialium, 191 
Siamese Crane-Fly, 147 
Sicelomyrmex corniger, 11 
Simuliidae, 134 
Simulium venustum, 134 
Simulium (Wilhelmia) vittatum, 134 
Somula decora, 374 
Specularia perjoliata, 113 
Sphcerophoria menthastri, 373 
Sphcerotheca phytoptiphila, 301 
Spheina campanulata, 373 
Spheina flavimana, 373 
Spheima infuscata, 373 
Spheina keeniana, 373 
Spheina lobata, 373 
Spheina monticola, 373 
Spheina petiolata, 373 
Spheina rufiventris, 373 
Spilaria lucorum, 142 
Spilaria marmorata, 142 
Spilogona alticola, 142 
Spilothynnus thalluse, 241 
Staphylinid Beetle Dianous nitidulus, 
386 
Steironema, 115 
Stenopsocini, 325 
Steringomyia flavipalpis, 141 
Sthenopis, 334 
Stratiomyidae, 134 
Structure and Significance of Palaeo- 
gyrinus, 216 
Stylopized Vespidae, 249 
Suillia zetterstedtii, 145 
Symphoromyia montana, 135 
Synagris, 272 
Syritta pipiens, 373 
Syrphidae, 138 
Syrphidae Collected at New Hamp- 
shire, 370 
Syrphus amalopsis, 2>12 
Syrphus johnsoni, 372 
Syrphus lapponicus, 372 
Syrphus laticaudus, 372 
Syrphus latifasciatus, 372 
Syrphus nitens, 372 
Syrphus pallifrons, 138 
Syrphus per plexus, 138, 372 
Syrphus rectus, 372 
Syrphus ribesii, 372 
Syrphus ribesii var. vitrifrons, 372. 
Syrphus torvus, 372 
Syrphus, venustus, 372 
Syrphus wiedemanni, 375 
