1900 ] ENTOMOLOGICAL SOCIETY. 99 



than a hencoop. Ha had tried almojb evary way of introiacin^ the cyanide, but the 

 man who did the work invariably complained of severe headache, until he devised a 

 method of combining the mixtures under the floors. 



Mr. Lounsbury suggested that a simple way was to have a smiU lead tube leading 

 from the outside of the house, the vessel containing the cyanide being placed under the 

 tube, the door closed and locked, and the water and acid freshly mixed being poured in 

 through the little funnel or tube and the aperture closed. 



Mr. A. L. Qaaintance of the Georgia Experimental Station, read the next paper 

 on Diabrotica 12 punctata which is a serious past to corn in the Southern States. The 

 injury to the plant is confined almost entirely to the work of the larva) on the under- 

 ground portions of the plant, as the roots and stem below the suiface of the soil. The 

 attack is mainly in the spring while the plants are quite young. The writer gave an 

 account of the life history of the beetle and the experiments that had been made with 

 a view to its control. Ho found that if eight to ten grains of corn be planted in each hill, 

 the plants would not all be destroyed, and the injury from this Southern corn-root worm 

 would be practically avoided, or so distributed that the damage would be trifling. 



Mr. C. P. Lounsbury gave a long and very interesting account of his observations 

 on the habits and as30ciations of a number of species of Ticks that cause great annoyance 

 and much injury to live stock in South Africa. 



Mr. W. M. Scott presented a paper on the Ooccidse of Georgia in which he enumer- 

 ated 41 species of scale insects that he had found in the State, and gave their localities 

 and food-plants. 



On Saturday morning, June 23rd, the Association met in joint session with the 

 Society for the Promotion of Agricultural Science, the President of which (Prof. Beal) 

 read his annual address. Dr. L. O. Howard gave an account of the progress of Economic 

 Entomology in the United States, which is published in the year-book of the U.S. Depart- 

 ment of Agriculture for 1899 ; and Mr. C. P. Gillette read a paper entitled " Apiary 

 Notes." 



NOTES UPON THE DESTRUCTIVE GREEN PEA LOUSE FOR 1900. 

 {Nectarophora Destructor^ JOHNS). 



By W. G Johnson, College Park, Md. 



Perhaps no insect in recent years has attracted more attention than the destructive 

 green pea louse. It became conspicuous, first, on e»ccount of its ravenous attacks upon 

 the pea fields, a crop heretofore practically immune from the ravages of insects ; and, 

 secondly, from the fact that it was a species not recorded in science. What condition in 

 nature was responsible for such a general distribution of a new species of insect the writer 

 will not attempt to discuss in this short paper. It appeared last year, and was recorded 

 for the first time, from Maine along the Atlantic coast southward to North Carolina, and 

 westward to Wooster, Ohio. It was also observed in Nova Scotia and Ottawa, Canada. 

 I had it sent to me from Massachusetts and Vermont in July and August, and complaints 

 of its eerious nature have come to me from Chillicothe, Ohio, Long Island, N.Y., portions 

 of New Jersey, and Wisconsin (August). I first observed the peat May 18, 1899, and 

 have had it under constant observation from that date to the present writing. I described 

 the newcomer in the February issue of the Canadian Entomologist as Nectarophora de- 

 structor. A very long name, I admit, but if there is anything in a name being a burden 

 to its possessor, we hope that this one will accomplish such a purpose. 



From the first I have held that this insect is probably a clover pest. It has been 

 observed upon both red and crimson clover, and this season hundreds of acres of red 

 clover have been destroyed by it. In one instance, reported to me June 13, Mr. C. 

 Silas Thomas, of Lander, Frederick County, Md., stated tha*; the pest had almost entirely 

 ruined 65 acres of red clover for him. Many other cases of a similar nature were reported 

 or observed by us. The attack has been very common upon crimson clover also, but I 

 have not heard of a field being killed by it. That clover, and perhaps the red clover, is 



