Yorkshire Naturalists at Knaresborough. 
182 
is very abundant on the Dropping Well side of the Nidd. The 
opinion has been usually held that this Liverwort has originated 
in flower-pots and gardens, but after seeing it in such abundance 
by the Nidd from Knaresborough to Nidd Bridge, also in the 
opposite direction, and on rocks by the River Skell. a long way 
from Ripon, and on natural rock in other places, I venture to 
differ from the accepted opinion on the origin of this Hepatic. 
I now believe Lunularia to be native on stones by streams, 
and on wet or shady rocks. Since the plant is invariably 
provided on its surface with semilunar pockets containing 
lenticular gemnue, it is highly probable that these thin and 
light gemmae have been blown out by the wind and carried to 
gardens, and thence with the soil to flower-pots. Miss Cooper 
found Lophocolea cuspidata in fruit on soil in the wood. L. 
heterophylla was also found, and the minute Haplozia pumila. 
Three mosses are worthy of mention on the way to Nidd Bridge. 
These are Plagiochila latebricola on rotten wood (found by 
Mr. R. Barnes), Barbula tophacea v. acutifolia in fruit and very 
typical of the variety, and Milium rostratum in fruit.* 
Entomology. — Mr. G. T. Porritt recorded that only three 
species of Neuroptera had been taken, but that one of them, 
Tceniopteryx trifasciata, which he had found rather commonly 
by beating alders and willows on both sides of the river, was a 
new record for the county. The other species were Nemoura 
meyeri, and N. cinerea, the first-named in abundance. 
In Lepidoptera, Diurnea jagella was common on the trunks 
of trees, practically all being of the palest form of the species, in 
strong contrast with the species in the manufacturing districts 
only thirty miles or so away, where the specimens were nearly 
all black. Hibernated larvae of Metrocampa margaritata 
were common on alder twigs. 
In Diptera, Mr. James King, of Glasgow, who was a very 
welcome visitor at the excursions, had taken a few obscure 
species, but the determination of which he said would have to 
be worked out later. 
Coleoptera. — Mr. H. V. Corbett reports : — 
Collecting was confined to the banks of the Nidd, above 
Knaresborough. The most interesting finds occurred at a 
bend in the stream, where sunny sandbanks ended in shingle 
at the water’s edge. Here Bembidia were swarming in 
countless numbers, and Clivina collaris was quite common. 
The best species taken were Bembidium tibiale, B. monticola, 
B. punctulatum, B. stomoides, and Aphodius pusillus. My 
thanks are due to Mr. E. G. Bayford for identifying the last 
two species. The most remarkable absences were those of 
* The bryophytes on the Plumpton Rocks side of Knaresborough are 
recorded in The Naturalist for 1912, page 95, and 1914, page 134, the latter 
specially with a Bryological Excursion to Plumpton Rocks. 
Naturalist, 
