| Silvanoprus scuticollis |
|
| Silvestrus seminudus |
Bristly Millipede |
| Silybum marianum |
St. Mary's Thistle; Milk Thistle |
| Simplicia extinctalis |
Pale African Litter Moth |
| Sinapis alba |
White Mustard |
| Sinapis arvensis |
Charlock; Wild Mustard; Charlock |
| Sinapis arvensis |
Charlock |
| Singhiella citrifolii |
|
| Singhiella simplex |
Fig Whitefly |
| Singhiella simplex |
Fig Whitefly |
| Sinobambusa tootsik |
Chinese Temple Bamboo |
| Sinoxylon |
|
| Siphunculina striolatus |
|
| Siphunculina striolatus |
Tropical Eye Fly |
| Sirex noctilio |
Blue-Black Wood-Wasp; Sirex Woodwasp |
| Sisymbrium officinale |
Hedgemustard; Common Hedge Mustard; Hedge-Mustard |
| Sisymbrium officinale |
Hedgemustard; Hedge Mustard |
| Sisyrinchium angustifolium |
Narrow-Leaved Blue-Eyed Grass |
| Sisyrinchium californicum |
Californian Yellow-Maiden; Yellow-Eyed Grass |
| Sisyrinchium micranthum |
Annual Blue-Eyed Grass |
| Sitobion |
Aphid |
| Sitona hispidulus |
Clover Root Curculio |
| Sitona lineatus |
Pea Leaf Weevil |
| Sitona lineatus |
Pea-Leaf Weevil |
| Sitophilus granarius |
Granary Weevil |
| Sitophilus linearis |
|
| Sitophilus oryzae |
Rice Weevil |
| Sitophilus oryzae |
Rice Weevil; Biscuit Weevil |
| Sitophilus zeamais |
Maize Weevil |
| Sitophilus zeamais |
|
