- sacculus
- Sc
- scape
- scaphium
- sclerite
- sclerotization
- sclerotized
- scobinate
- SD-group
- secretion
- semiovate
- serrate
- serrulate
- seta
- setose
- shagreened
- signum
- sinuate
- socius
- somite
- spatulate
- spinescent
- spiniform
- spinneret
- spinulose
- spiracle
- stamen
- stellate
- stemma
- sterigma
- sternite
- stria
- striga
- strigulae
- strigulated
- striole
- sub
- subapical
- subapical blotch
- subbasal
- subfalcate
- suboesophageal
- subscaphium
- subterminal
- suffusion
- sulcus
- supra
- suture
- SV-group
- synapomorphy
- synonym