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Body medium-sized.
Labial region continuous to slightly offset. SEM face view
typically with oval labial disc surrounded with six-sectored first lip annule,
submedian sectors somewhat flattened. Labial region annules
interrupted by longitudinal striations
or grooves.
Stylet generally nedium-sized, 20-25 µm
long, sometimes shorter
(10 µm
) or longer (up to 40 to 50 µm
), cone sometimes
needle-shaped.
Lateral
field with six lines (eight lines in M. koreanus, though
only six are visible in lateral view). Longitudinal ridges
sometimes present (M. koreanus).
Deirids,
when present, at a level where the lateral field
has only four lines.
Tail medium-sized (c' = 2 to 4),
conoid, never with thickened
cuticle in distal portion.
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