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Coenraad Ritsema
Coenraad
Ritsema
, also
Cornelius
Conrad
Ritsema
was a
Dutch
entomologist
.
Ritsema was a
Curator
at
RMNH
Rijksmuseum van Natuurlike
in
Leiden
from
1873
to
1916
and wrote many
short
papers
describing
new species
of
Hymenoptera
and
Coleoptera
.
As part of his
duties
at the Leiden
museum
he
worked
in other
fields
for
instance
on
Decapoda
.
He was a
specialist
on
Helotidae
.