450 



Field Notes. 



HYMENOPTERA. 

 Hymenoptera at Doncaster during 1910. — The cold 

 sunless season made insects of this order particularly scarce. 

 Only a few of the commonest Andrence were seen during the 

 Spring, and nothing but Bombi during mid-summer. In 

 August and September there were some sunny days on which 

 a few species were abundant. Of these Mimesa bicolor was 

 in quantities on flowers of Tovilis anthriscus, and along with 

 them were many Crabro cribrarius. On the same species of 

 flower I also took the only aculeate new to the county list, 

 with which I have met this year. This was Oxybelus uniglanis. 

 Of the Siricidae I have had several fine specimens of Sirex 

 noctilio, but not one 5. gigas brought to me. — H. H. Corbett, 

 Doncaster, 4th November, 1910. 



COLEOPTERA. 



Amara curta Dej. in Yorkshire. — In April of the present 

 year I had the good fortune to meet with a specimen of Amara 

 curta Dej., under a stone on the coast at Eston, in Cleveland. 

 This insect must be very rare in the north of England, as the 

 species does not appear in the local catalogues for this part of 

 the country. Fowler says of it ' (Brit. Col., Vol. I., p. 77 ') 

 ' common on the sand-hills at Deal, also taken at Brighton. 

 In the spring of 1877, I took a single specimen in my garden 

 at Repton, near Burton-on-Trent ; I know of no other English 

 locality.' A. curta is, therefore, a very interesting addition 

 to the list of Yorkshire beetles. — M. Lawson Thompson, 

 Middlesbrough, October 13th, igio. 



— : o : — 

 GEOLOGY. 



Larg-e Scandinavian Erratic in East Yorkshire. — At 

 a height of about 70 feet above the high water mark, on the 

 north Humber shore at Hessle, has recently been found what 

 is perhaps the largest Scandinavian erratic, of its kind, found 

 in England. It occurred on a bed of marl, under five feet of 

 boulder clay, on the top of Marshall's chalk quarrj-. It is of 

 augite-syenite {Lanrvikite), which occurs in situ near Christiania, 

 and measures over 3 ft. by 2 ft. by ij ft. Mr. Marshall has 

 presented it to our museum, where it takes a place by the side 

 of the large glaciated boulder from Burstwick, already figured 

 in these pages. We now want a good-sized erratic of Shap 

 Granite. — T. Sheppard, Hull. 



Naturalist, 



