188 THE ENTOMOLOGIST. 



brood of the larvae he found in May and June, and the second 

 generation in September (Stett. Ent. Zeit., 1863, p. 123). In 

 1861 this beetle committed great ravages on the blooms of the 

 ' Meerrettigs ' {Cochlearia Armoracia) at Molin, in Bohemia, so 

 that there was quite a failure in the production of the far-famed 

 ' Moliner Krenes,' the cultivation of which supports many- 

 hundreds of families." Differing from this synonymy Dr. Sharp 

 makes P. hetahe, L., = annomcece, L., of Wat. Cat., and P. coch- 

 learice, Fb., = hetidce of Wat. Cat., but not Linne. Dr. Power 

 writes: "P. hetidce of Sharp is larger than P. bet nice of Water- 

 house, and may at once be known by the callosities on its 

 shoulders. It is less common than the smaller species. They 

 are, however, both very abundant in wet places, affecting, I 

 believe, ani/ of the Cruciferce ; I do not believe they are very 

 particular which ; certainly they abound on the watercress, but 

 I suspect that the little one is more omnivorous and less aquatic 

 than the other species with callosities. I have recently seen it 

 utterly destroying a crop of horseradish, &c., in a garden at 

 Cowley."— E. A. F.] 



Cladius viisriNALis Larv.e destructive to Nut-stubs. — In 

 the early part of this month a friend at Burnham, in this county, 

 complained that the leaves of his nut-stubs were completely 

 skeletonised by some greenish S-shaped caterpillars with black 

 spots, which were in the greatest abundance, thus giving the 

 stubs a very bare appearance ; and that the promise of an 

 abundant crop was quite spoiled, as the young nuts had nearly 

 all fallen off the trees. By request some hundreds of these larvae 

 were sent me, and I was surprised to find them the larvae of the 

 common poplar and willow-feeding Cladius viminalis, Fallen. 

 I find no notice of hazel as a food-plant of this sawfly larva, and, 

 curiously, both poplar and willow are quite uncommon in the 

 locality where this species has this year become destructively 

 abundant. Last week I saw the devastated trees, and the leaves 

 are quite gone ; but some considerable quantity of young nuts 

 and leaf-veins could still have been gathered up from under the 

 trees. — Edward A. Fitch ; Maldon, Essex, Jul}^ 1881. 



Odyxerus pictus ; Contribution towards its Life-history. 

 — On the 20th June I was in the Plymouth cemetery, and on 

 passing a monument erected to the memory of the officers and 



