220 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 2 



be found even on the most profusely infested trees and plants, and 

 fruit growers and gardeners are hoping that the scourge has run its 

 course for the present. 



[This concludes the list of papers read by title.] 



NOTES ON INSECTS AFFECTING THE COCOANUT 

 TREES IN THE SOCIETY ISLANDS 



By II. W. DOAXE, Stcntford Universiti/. Cal. 



In a previous issue of this Journal, 1 : 341, I have given a 

 few notes on Aspidiotus destructor and its work on the cocoanut 

 trees in these islands. While this insect is responsible for the great- 

 est injury to the trees, there are several others that are of more or less 

 importance. Among the scale insects Hemichio7iaspis aspidistrce ranks 

 next to A. destructor in numbers and probably in amount of damage 

 done. The two are usually found together on the leaves and fruits. 

 H. aspidistrae occurs on all parts (except the trunk and roots) of 

 both the old and young trees, the white scales of the males often form- 

 ing white patches that nearly or quite cover the leaflets on many of 

 the leaves. But it is on the nuts that it is most abundant and most 

 conspicuous. The husk of both the young and the old nuts are often 

 almost completely covered with it. On account of this habit of at- 

 tacking the huslvs of the nuts it is not as injurious as it would be if it 

 confined its attention to the young tender leaves. I also collected it 

 and had it sent to me from several of the islands of the group on a 

 number of unidentified weeds and shrubs. Everywhere it is 

 abundantly parasitized by a small chalcid, but I did not succeed in 

 rearing the parasite. Lepidosaphes gloveri is often very abundant on 

 the bases of the older leaves, but as long as its attacks are restricted 

 to this part of the tree the damage done is not very great. It is every- 

 where badly parasitized. On some leaves practically all of the scales 

 showed the small round hole where the parasite had escaped. On the 

 young tender unfolding leaves of many of the trees, both old and 

 young, are to be found large colonies of Pseudococcus pandani. Some 

 of the young trees are seriously injured in this way, for as fast as the 

 tender leaves break from their sheath the insects attack them and 

 when abundant produce a considerable amount of honey dew. This 

 mixed with the white flocculent excretion collects in large drops and 

 masses in the folds of the leaves around and below the colony. No 



