212 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



so seriously that we probably shall have to give up raising /. regia in 

 the East unless some means for control can be found. 



The larvae infest the swollen base of the leaf-stalk and also 

 hollow out the tender shoots. As stated by Dr. Morris, the 

 eggs are deposited in the shoots of various walnut trees from 

 the first week in May until September, and he has noted 

 beetles on the trees as late as October 5. 



-Mr. Quaintance exhibited specimens of a chrysomelid 

 beetle, the grubs of which had been complained of as quite 

 injurious to cranberries in one locality in New Jersey. The 

 insect was determined by Mr. Schwarz to be Rhabdopterus 

 picipes Oliv. The species has not heretofore been reported 

 as of economic importance, and, in fact, but little is known as 

 to its habits. 



The larvae were present in a cranberry bog in the neighbor- 

 hood of New Egypt, New Jersey, and had destroyed the plants 

 in small patches here and there over the bog. The injury 

 consists in the destruction of the fibrous roots of the cranberry 

 plant and the eating off of the bark of the larger roots. The 

 injury is very similar to that done by the grape root worm, 

 Fidia viticida, to roots of the grape. 



Observations made in the cranberry marsh indicate that 

 the beetles feed, to a certain extent at least, on the tender 

 foliage of the cranberry plant, and it is thought possible that 

 advantage might be taken of this fact to secure their destruc- 

 tion by the timely use of arsenical sprays. Beetles confined 

 with cranberry plants in rearing cages in the insectary at 

 Washington fed freely upon the foliage, but spent a good deal 

 of time below the surface of the soil, where they probably 

 oviposit, as eggs were found in the soil. 



-Mr. Schwarz remarked that of the multitude of eumolpid 

 Chrysomelidse which inhabit America hardly anything is 

 known of their natural history or of their range of variation. 

 Even in North America there are genera of which we know 

 very little, for instance the genus Typophorus, which includes 

 the strawberry leaf -beetle (now known under the name of 7. 

 canellus Fabr.). At present all our eastern spotted or black 

 forms are listed as varieties of one species, whereas it is almost 



