All body segments (sg) divided into 2 or 3
subdivisions (sub) with dorsal sclerotized plates;
Body with many dark spots creating a greyish-brown
coloration; Posterior spiracles at end of short,
conical respiratory tube (rt)

Body smooth, shiny, and creamy-white, lacking
surface features; Some setae (se) protruding from
end abdominal segment and sometimes with a
retractile anal proleg (pl) bearing a few crotchets (ct)