328 
Naturalists’ Field Day at Askham Bog. 
ance in the old heads of the Typha (bulrush). The species has not been 
recorded for Yorkshire since the late Lord Walsingham found it in 
abundance at Sherburn on the occasion of the Yorkshire Naturalists’ 
Union’s excursion there on June 2nd, 1884. 
To the above records, the Rev. C. Ash adds Leucania comma L., D. 
cucubali Fues., and the more local L. impudens Hb. and P. lignata Hb. 
Coleoptera. — M. L. Thompson reports that he met with the following 
species in moss at the edges of ponds in Chandler’s Whin : Bembidium 
doris Panz., Pterostichus minor Gyll., Agonum piceum L., Anacaena 
limbata F., *Myllaena dubia Grav., Philanthus fumarius Grav., Lath- 
robium ge’minum Kr., L.. quadratum Pk., L. terminatum Gr. var. im- 
maculatum Fowl., Stenus latifrons Er. Of these insects two deserve 
special mention ; B. doris Panz. has only once been recorded for York- 
shire, whilst Myllaena dubia Grav. does not appear to have been previously 
taken in the county. Later in the day in the bog itself, Donacia 
marginata Hoppe ( limbata , Panz.), Saperda populnea L., Rhagonycha 
testacea L., Galerucella nymphaeae L., Aphthona coerulea Geoff. ( non - 
striata), and Limnobaris T -album L. were taken. 
Diptera (J. H. Ashworth). — The date was an in-between one for 
Diptera, and under the circumstances I was well satisfied to meet with 
about 30 to 35 species, amongst which I have not noticed anything that 
demands record, and to enumerate common species which can in their 
Season be found in most places, would give a wrong impression of this 
interesting locality. The best capture was the brilliant Pachyrrhina 
crocata by Mr. Winter. (For an addition to the county list see the 
Plant Galls report). 
Hemiptera (J. M. Brown). — Owing to the wet state of the vegetation 
collecting for the Hemiptera was "carried out under unfavourable con- 
ditions. Neither ‘ beating ’ nor ‘ sweeping ’ was very successful. 
The following 31 species were obtained, of which four have not been 
listed previously for the county. 
I . — Heteroptera . 
Scolopostethus affinis Schill. 
Saida littoralis L. 
Anthocoris confusus Reut. 
A. nemorum.L. 
Calocoris striatus L. 
Plesiocoris rugicollis Fall. 
Dicyphus stachydis Reut. 
Orthotylus marginalis Reut 
Phylus palliceps Fieb. 
Psallus ambiguus Fall. 
P. betuleti Fall. 
P. variabilis Fall. 
P. varians H.-S. 
II.— Homoptera. 
Oncopgis alni Schr. 
O. flavicollis L. 
*Deltocephalus striatus L. 
D. pulicaris Fall. 
Limotettix \-notata Fab. 
*Cicadula warioni Leth. [f ascii frons) 
C. 6 -notata Fall. 
C. fieberi Edw. 
Dikraneura flavipennis Zett. 
*D. similis Edw. 
Eupteryx urticae Fabr. 
E. atropunctatus Goeze, 
Typhlocyba ulmi L. 
T. tenerrima H.S. 
*T. rosae L. 
Cixius nervosus L. 
Psylla peregrina Forst. 
P. alni L. 
Trichoptera (G. T. Porritt).— I have very little to report as practic- 
ally all my time was spent in a fruitless search for the rare Phacopteryx 
brevipennis, of which, out of the some half dozen specimens known to 
be British, three are from Askham Bog, or, as I suspect, Chandler’s 
Whin, the ground there being so much more suitable for it. For such 
a locality Trichoptera were remarkably scarce, and I saw only very 
common species. 
Neuroptera (G. T. Porritt). — There was not sufficient sun to tempt 
Naturalist 
