86 REPORT OF THE STATE ENTOMOLOGIST IQ2I 



H. B. Weiss records * its general occurrence in ( New Jersey on 

 dogwood and states that its presence is indicated by withering 

 leaves at the tips of infested shoots, though as a rule it never 

 occurs in sufficient numbers to cause material damage. 



The work of this insect as an elm twig pest in the parks of 

 St Paul, Minn., is discussed in some detail 2 by Prof. A. G. Ruggles. 

 He states that all the trees along one of the finest avenues in St 

 Paul had numberless dead leaves hanging from the terminal twigs 

 in June 191 1. Doctor Britton in 1917 records 3 this species from the 

 twigs of sorrel trees or sour weed, Oxydendrum arboreum and in 

 dogwood and azalea. 



In connection therewith, Doctor Howard has informed us in a 

 recent communication of the very abundant occurrence of O. 

 t r i p u n c t a t a, in Connecticut where it attacks various species of 

 laurel. 



It is evident from the above summary that this insect occasionally 

 becomes somewhat abundant and apparently is more injurious to 

 elms than to the smaller trees or shrubs in which it also breeds. It 

 does not appear to have attracted attention before in New York 

 State and may not prove to be of any particular importance. 



Pales weevil (Hylobius pales Hbst.) . Specimens of 

 young larch trees were received June 13, 1921, through the State 

 Conservation Commission from John Bar ford, East Chatham, 

 accompanied by the information that some 50 per cent of about 

 1000 recently set trees had been seriously damaged or killed by the 

 work of an insect provisionally identified as this species. The por- 

 tion of the shoot, with a diameter of one-fourth of an inch or a 

 little more, was generally roughened and with numerous accumu- 

 lations of resin, evidently due to recent wounds. In a few places 

 fresh, irregularly oval areas about one-eighth of an inch in diameter, 

 had been gnawed out by an insect. 



The general appearance of the work and of the shoots agrees 

 very closely with the illustration of the work of the European 

 Hylobius abietis Fabr., as delineated by Gillanders in his 

 " Forest Entomology," page 72. 



Hickory gall aphid (Phylloxera caryaecaulis 

 Fitch). This common insect was unusually abundant. It first 

 attracted notice June no, 1920, at Nassau where the developing 

 galls were extremely numerous upon the leaf stems and particularly 



1 Can. Ent., 48:142; see also Circular 26, N; J. Dcpt. Agr., p. 44-46, for 

 additional details. 

 sEcon. Ent. Jour., 8:79-85. 1915. 

 3 17th Rep't, Conn. State. Ent., p. 360. 1917. 



