British Oribatidce : Notes on New and Critical Species. 287 
HERMANNIA Nic. 
H. quadriseriata Banks ( — reticulata Thor. — -Mich.). 
H. scabra L. Koch. 
I use Banks’ name for the former species, since the 
British examples agree with his descriptions, and do not 
agree with Thorell’s description or with L. Koch’s figure of 
Thorell’s reticulata. If Tragardh’s emphatic declaration of 
the identity of reticulata Thor, with the British species be 
correct (I gather that he has not seen British examples, 
though he rebukes Banks for trusting too much to docu- 
mentary evidence!), it is necessary to believe what seems 
utterly incredible — that Koch and Thorell made precisely 
the same double blunder in ascribing to the species before 
them six series of dorsal hairs and a pseudostigmatic organ 
simply thickened (not globosely piriform). 
It is extremely odd that, unless Michael has made 
mistakes of much the same kind, he would appear to be 
wrong in identifying his H. nodosa with H. scabra L. Koch. 
He figures and describes it as having six rows of dorsal hairs 
and a short blunt pseudostigmatic organ. I have never 
seen a creature so characterized, but H. scabra L. Koch — 
with four rows of dorsal hairs and pseudostigmatic organ 
with distinctly fusiform extremity longer than in Michael’s 
figure — is abundant in Northumberland and Durham, 
particularly on the coast. Inland it occurs usually on dead 
wood, but on the coast almost anywhere — in moss, lichen, 
or salt-grass, or on fresh water algse in pools. H. quad- 
riseriata is plentiful in the neighbourhood of Whitley Bay, 
always in ground moss. 
H. fluviatilis Hull. (Plate C, fig. 8). 
A large species, described by me in the current trans- 
actions of the Derwent Valley Nat. Hist. Society. I take 
this opportunity of figuring it. It was first found in moss 
(from a waterfall) sent to me by Mr. Bagnall from the 
Derwent Valley. I have since found a single specimen in 
some wet moss sent to me bj r the same collector from near 
the top of Cheviot Hill. 
HOPLODERMA Mich. 
H. affixe sp. n. (Plate C, fig. 9). 
Length about 420 n . 
Pale flesh colour ; dorsum with a marginal and also a 
submarginal narrow brown band. Texture of dorsum 
exactly as in H. dasypus — polished and shining, densely 
but very minutely punctured. 
Aspis without carina or markings, uniformly arched. 
1914 Sept. 1. 
