312 Sectional Officers’ Reports. 
ENTOMOLOGY. 
G. W. MASON. 
The summer of 1911, though exceptionally hot and dry, 
has not been altogether favourable for Lepidoptera. My first 
excursion for the season was: to Linwood on Easter Monday, 
April 17th, with Dr. F. P. Birtwhistle, and Mr. F. W. Sowerby. 
It was a warm day with a strong breeze, and several Brephos 
parthenias and notha were seen, and a few of each species captured. 
It is pleasing to confirm the occurrence of notha, which was flying 
vigorously among the aspens, as some doubt has been cast on the 
single previous record for the County. A successful Meeting of 
the Union was held at the same place on Whit Monday, June 
5th, which was a broiling day. Lepidoptera were abundant, one 
of the most interesting species being the beautiful Melanippe 
hastata, which was evidently just out and occurred sparingly all 
over the wood. The only new record that day and for the whole 
year was beaten out of Pinus sylvestris by the Rev. E. A. W. 
Peacock, which has been identified by Mr. E. A. Atmore as 
Oecophora panzerella. In May I bred several examples of that 
beautiful variety of Zonosoma pendularia 1.e. subvoslata from ova laid 
by a typical female taken the previous year in Skellingthorpe 
Wood. Larve of the commoner sorts were plentiful in June at 
Pelham’s Pillar Wood, and several larve and pupe of Sesta 
asiliformis, an oak wood feeder, were taken by Mr. John Porter, 
of Hull, from beech stumps. Abvaxas sylvata was abundant, and 
Nemeophila plantaginis was very common but difficult as usual to 
take. The weather at the Meeting at Barton was cold and 
unfavourable, and nothing of importance was noted. Avrgynnis 
aglaia is reported as having been commoner than usual in July at 
Pelham’s Pillar Woods, and the Pierids throughout the summer 
were exceptionally abundant. From July onwards to the end of 
the season the Lepidoptera, with the exception of a few species, 
appeared to be generally scarce. Sugaring was an absolute 
failure all the year. In many parts of the country it has been a 
great year for Sphinx convoluuli, and I have two records of its 
occurrence, one at Louth on Sept. 6th, brought to Mr. C. S. 
Carter, and one from Miss S. C. Stow, taken at Grantham, in 
