on fossil may-flies, [443];

on fossil Sialidae, [449];

on Tertiary Insects, [179]

Scutellum, [100], [101]

Scutigera, [35], [36], [48];

sense organ, [51]

Scutigeridae, [35], [36], [40], [46], [50]

Scutum, [100], [101]

Secondary, [427], [472];

larva, [542]