564 MESSRS. C. WARBURTON AND N. D. F. PEARCE oN [ Dec. 12, 
that the present species cannot be safely referred to the genus 
Fridericia, which is so distinctly characterised by the peculiar 
paired character of its sete. There remains only Henlea and 
Bryodrilus, from which, however, the species described in the 
present paper differs im several points. With genera described 
more recently than those included in Michaelsen’ s comprehensive 
work just quoted, e. g. Hydrenchytreus*, 1 cannot identify this 
semiparasitic Enchytrzid from India. 
It is true that four species, viz., Marionina glandulosa, Enchy- 
treus minimus, EH. parvulus t, pal E. twricensis, possess, as does 
the species dealt with here, two sete in each lateral, and three in 
each ventral, bundle ; but 1 do not regard those TB: opean species 
as identical with the present Indian form. 
Tn the meantime I place the species in the genus Henlea, where 
the characteristic glandular pouches of the gut are occasionally 
absent (e.g. Henlea dicksoni), in default of living material and 
a more exhaustive examination. I propose to name it after 
Mr. Lefroy, who first directed attention to the species. 
10. On new and rare British Mites of the Family Oribatide. 
By Cxcu, Warsurton, M.A., F.Z.8., and Nicen D. F. 
Prarce, M.A. 
[Received November 21, 1905. | 
(Plates XIX. & XX. f) 
Since the publication of Mr. A. D. Michael’s: Monograph on 
British Oribatide in 1888, only a single new species, so far as we 
are aware, has been described from these islands. This was a 
Lohmannia taken in Ireland by Prof. Carpenter and described by 
Berlese in ‘ Redia,’ vol. ii. fase. 1. (1904, Aug. 18), as LZ. insignis. 
Curiously enough this mite was in our hands while the Italian 
arachnologist was describing it, and narrowly escaped another 
specific name. 
No doubt the workers in this particular group have been Pa 
but it is a striking testimony to the thor oug limes ss of Mr. Michael’s 
work that so long an interval should have elapsed without 
substantial addition to the British list of Oribatide, for the study 
of which his labours have so admirably paved the way. 
For two years we have searched pretty thoroughly the 
neighbourhood of Cambridge, and especially of Grantchester, and 
liens examined moss from many other localities, and we thare 
hitherto met with 82 of the species described in the Monograph, 
and the seven forms, new, we believe, to science, of which the 
diagnoses are given below. 
* Bretcher, Rev. Zool. Suisse, 1x. p. 208. 
+ This worm is described by Friend (Irish Nat. xi, 1902, p. 110), though no 
sufficiently to permit of any. certainty. 
+ For explanation of the Plates, see p. 569. 
