383 
NEW MITES. 
C. F. GEORGE. M.R.C.S., 
Kirton-in-Lindsey, 
1.—Tvombidium mushami n.sp. 
I HAD this mite sent to me alive, with others, by Mr. Musham, 
of Selby, more than a year ago. I mounted it in balsam without 
dissecting it, hoping to get another specimen for that purpose. 
In this, so far, I have been disappointed. Mr. Soar, how- 
ever, has made a characteristic drawing from the mounted 
slide. It will be seen by the figure that the mite is rather 
Trombidium mushami x 16. 
heart-shaped and has the apex distinctly emarginate. The 
sides are more convex than they appear during life, in conse- 
quence of the figure being drawn from a mounted specimen 
somewhat compressed by the cover glass. In the September 
number of The Naturalist for 1908, is a description of T. 
holosericeum which, with certain differences, would almost 
pass for that of the present mite. The most important of 
these differences are, (1) the size—This mite is very much 
smaller, Mr. Soar’s measurements of 7. holosericeum are, length, 
2°80 m.m., width, 2.40 m.m.; 7. mushami, length, 1°65 m.m., 
width, 1°45, t.e., about half the size. (2) the colour—T. 
holosericeum is a fine scarlet, while 7. mushami is a very dark 
ruby, much of this colour is retained by the papillz even after 
mounting in balsam. (3) The hairs or papille are much shorter 
1913 Nov. 1. 
