142 GLOSSARY. 
ScurELLUM. A more or legs triangular posterior process of 
the mesonotum, seated between the wings. 
SecuriFoRM. The last joint broadly triangular, attached 
by its apex to the preceding. 
SprRRATED. Toothed like a saw. Applied to antenne when 
the joints are triangular. 
SEssILE. Not stalked. 
Srraceous, Slender, and getting gradually thinner toward 
the apex. 
Spor. A small round spot. 
STigMATA. The openings of the tracheze. Same as Spvracle. 
STRIATED. With parallel shallow impressed lines. 
Srriga. A transverse coloured band. 
STyYLIFORM. Resembling a pin. 
SuLcATE. With broad, deep, parallel grooves. 
Tarsus. The last portion of the leg in Arthropods, gene- 
rally divided into from two to five joints. 
TEQuL&. ‘The membranous scales on the sides of the meta- 
thorax in Diptera. 
TesTaceous. Dull red. 
Trp1A. The fourth or penultimate joint of the leg in Ar- 
thropods. 
TOMENTOSE. Covered with curled hairs. 
TROCHANTER. The second joint of the leg in Arthropods. 
Vipriss&. Hairs on the anterior border of the mouth. 
Vittose. Densely covered with long straight hairs. 
Vitra. A broad longitudinal stripe. 
