(2006) 22, 1–14
, a new species of Algophagidae (Astigmata) inhabiting sap
flux in Japan
NORMAN J. FASHING
Department of Biology, College of William and Mary, Williamsburg, VA
A new species,
, is described and illustrated from adults, phoretic deutonymphs and non-
phoretic deutonymphs collected from sap flux on oak trees (
Carruth.) in Takamatsu City,
Kagawa Prefecture, Japan.
Deutonymphs are phoretic on the sap flux inhabiting beetle
(Motschulsky) (Coleoptera, Nitidulidae).
, sap flux,
Robin (1868) described
, an inhabitant of sap flux on English elm (
L.) in France.
Canestrini (1888) recognized the species was not
in the genus
and established the genus
to accommodate it.
(1888) also changed the specific name from
, a mistake that has since been
corrected and the species is now known as
To date, three additional species of
have been described:
Michael 1903 from the sap of an English black poplar (
Vitzthum 1931 from strongly fermenting, sour, milk-white liquid in a
cut-off bamboo stump in Sumatra, and
Türk and Türk 1957 from a deutonymph found
in birch rot in Germany.
The present paper describes a fifth species collected from sap flux on
sawtooth oak (
Carruth) (Fagaceae), in Kagawa Prefecture, Japan.
Materials and methods
Bark and wood were collected from sap flux on sawtooth oak trees (
back to the laboratory, and examined for mites under a dissecting microscope.
cleared in a mixture of Lactophenol and Nesbitt’s solution and mounted in Hoyer’s medium on
microscope slides (Krantz 1978; Evans 1992).
Measurements were taken on ten individuals of each
stage and are given in micrometers (
m) in the following order: holotype, mean and range (in
Relative position of setae and other structures are as in figures.
idosomal setae follows Griffiths
. (1990) and for leg setae Grandjean (1939).
For observation of characters under the scanning electron microscope (SEM), specimens were
dehydrated in ethyl alcohol, dried using the critical point procedure, individually affixed to stubs
using double-sided sticky tape, and coated with gold-palladium in a sputter coater.
performed on an AMR 1200.