CiRCLUAR 240] 
CONCHOLOGY.— Mr. W. Denison Roebuck, F.L.S , writes :-The 
Land and l->esh\vater Mollusca of this district have never, so far as is known, 
been investigated, so there is a good field of work open. As the place is on the 
boundary of the North and East Kidings, care should be taken to keep the 
records separate. The Riding boundary is the River Derwent above Stamford 
Bridge, and below it the main road to York. 
ENTOMOLOGY.— The Entomological Section will be officially repre- 
sented by Mr. Wm. Hewett who writes : — TButtercrambe Woods and the adjoin- 
ing district is a first-class collecting ground for the Entomologist, and the following 
are a few of the species that may be looked for on the date of the excursion : — 
Argvnnis paphia, Argc galatea (used to occur in abundance, and a sharp look out 
should be kept for it), Thecla qucrcus, Polyommatus phhras, Zygavia lonicfy^r and 
filipendulcp, Callimorpha jacolecr, Chelonia caja, Odonestis potatoria, Metrocampa 
margaritaia, Boarmia rcpandata, Geomc'ni papflionaria, Triphacna fimbria, Plusia iota 
and V. aureuni. The larvae of Acrouycta alni should be looked for on the upper 
sides of the leaves of the alder, oak and birch. 
Mr. G. T. Porritt, F.L S , F.E.S., states that a fine dark form of Ennomos 
fuscantaria occurs at Stamford Bridge, the larvae of which ought to be found on 
ash at the time of the excursion. 
Coleoptera. — Mr. E. G. Bayford, F.K.S., writes: — Apparently there 
are no records of Coleoptera from the precise area intended to be investigated, 
and previous excursions to the neighbourhood of Pocklington in 1893 and 1905, 
were singularly unproductive. Perhaps the best species recorded were from 
Allerthorpe Common, about eight miles as the crow flies from Stamford Bridge, 
viz., Gcotriipes typhocus and Coccinclla hieroglyphica. 
ARACHNIDA. — The Arachnida Committee will be officially represented. 
Mr. W. Falconer writes : — The district offers much favourable ground for collect- 
ing, but as yet its spider population has not been investigated, and there are no 
records for any place nearer than York, Pocklington or Riccall Common. 
PROGRAMME OF MEETINGS :- 
3- 45 p.m.. Meat Tea, 1/6 each. 
4- 30 p.m., Sectional Meetings. 
4-35 p.m., General Meeting. 
The Chair will be taken by the President of the Union. 
Trains.— To York, 5-13, 8-53 p.m To Hull, 5-22, 8-27 p.m. 
NOTICES. 
The next Excursion of the Union will be to Great 
Ayton (August Bank HoJiday Week-end) August 2nd to 
4th. 
In order that an early account of the excursion may appear in the 
"Naturalist." notes and reports should be forwarded before July 17th, to 
W. E. L Wattam, 30 Towngate, Newsome, Huddersfield. 
At the Bay Horse Inn, Stamford 
Bridge. 
