107 



On Two Species of Acarina believed not to have been 

 before recorded as british. 



By A. D. Michael, F.L.S., F.R.M.S. 



{Read May 28, 1880.) 



PLATES VI AND VII. 



The two species which I propose to bring before your notice to- 

 night are very different, and I am not aware that the capture of 

 either in Britain has been hitherto recorded ; they are two of those 

 exceptional and intermediate forms which produce a feeh'ng akin to 

 despair in the minds of classifiers, and which will not readily 

 accommodate themselves to the definition of any known family. 

 This remark is specially applicable to the first species. Both have 

 been previously found in Gemiany, thanks to the industry of 

 Dr. P. Kramer, of Schleusingen ; as, however, there is not, 1 

 believe, any description of them in the English language, and as, 

 moreover, I have been able to trace the immature stage of the first 

 species, and the female and some early stages of the second species, 

 neither of which Dr. Kramer appears to have traced, and as I have 

 also some points of construction to detail which the very limited 

 number of specimens at his command did not enable him to deal 

 with, I have thought that this little paper might have sufficient 

 interest to justify my bringing it before you. 



Labidostomma luteum. Kramer. 

 Plate VI. 



During the spring of 1878, whilst engaged in hunting for 

 OrihatidcB in moss growing on the ground at Epping Forest, my 

 attention was arrested by an Arachnid of a bright orange colour, 

 which appeared new to me, but which was making off with a 

 rapidity which did not leave any time for consideration. I secured 

 it in spite of its swift movements, and brought it home for examina- 

 tion, and during the season I captured one other specimen ; it did 



