287 
A NEW MITE—OTTONIA SHEPPARDII. 
C. F. GEORGE, M.R.C.S., 
Kirton-in-Lindsey. 
TuIs small but elegant Trombidium does not appear to have 
previously been described and figured. Mr. Soar gives the 
length of the body as 1.36 mm., the crista (see figure d) differs 
from any I have yet 
described ; its pos- 
terior termination is 
somewhat pyriform in 
shape (figure g), and 
there are twostigmata, 
each having a protec- 
ting hair. The hairs 
or papilla on the an- 
terior part of the body 
are rather long, aS 
pointed at the distal aie: 
end, and very plumose 
(see figure 5), while i 
those on the back and Wi} y 
sides are curved, thick- oie iy 
ened at their free ex- 
tremity, and palmate 
or digitate (see figures 
e and /f). They are of 
a very beautiful ruby 
colour, and much of 
this colour is retained 
even when mounted in 
balsam,ifthe mite has «£ 
not been kept very Z, NN 
long in preservative pie 
solution. The hairs 
are also not very Co) 
thickly crowded to- 
gether. The legs are G 
like those of most of A.—Ottonia sheppardii n.sp. x 30. Body length 
Eee ae cae B and C.—Haies on papillae 1-36 mm, 
ones the longest, wit Crista. : , 
epee cic chighes 6S Stara lay weil real 
ened and club-shaped ; 
the other legs are rather thin and short. The claws are simple. 
The eyes have each two ocelli. The vulva is rather large in 
proportion to the mite, and has the usual three copulatory 
discs on each side. The claws of the palpi are double, as is 
common in the small species of Trombidium. I believe the 
SSS 
= 
~> 
= 
~ 
19t3 Aug. I. 
