606 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
month preceding the cold weather. Observations on 2489 adult insects on February 
2 and 8, following the freeze, showed but 2 alive, a mortality of 99.91% and neither 
of these living females was producing progeny. During the examinations at this 
time not a living crawler was seen and only 36 eggs which were judged to be normal. 
The studies of the dictyospermum scale, Chrysomphalus dictyospermi (Morg.) 
collected at New Orleans, La. on camphor leaves on the 4th and 9th of February 
1924, showed 10 living scales in a total of 2428, a mortality of 99.58% while before the 
freeze only 22.16% of the adult female scales were dead. Mortality among the eggs 
and crawlers was also very high, only three viable eggs and one active crawler being 
found durinp- the examinations, and all producing females were dead. 
All material used in the observations was taken from living plants and every 
effort was made to represent normal conditions. 
Since Chrysomphalus aonidium and dictyospermi are primarily leaf-infesting coccids 
and many of their favorite host plants are completely defoliated, this condition, 
combined with the almost complete mortality from freezing, seems to have temporarily 
eliminated these species from the list of economic insect pests in New Orleans. How¬ 
ever, the apparent greater resistance to cold of Pseudaonidia duplex (Ckll.) seems to 
add to its possibility as a national economic pest. 
Thos. F. Catchings and W. D. Whitcomb, 
U. S. Bureau of Entomology, New Orleans, La. 
THIRTY-SEVENTH ANNUAL MEETING OF THE AMERICAN 
ASSOCIATION OF ECONOMIC ENTOMOLOGISTS 
The thirty-seventh annual meeting of the American Association of Economic En¬ 
tomologists will be held at Washington, D. C., December 31, 1924 to January 3, 
1925, inclusive. Final arrangements with reference to meeting places are not yet 
completed. 
Hotel headquarters for the Entomologists will be at the Harrington, 11th and E 
Streets. Rates as follows: 
Single room, without bath. S3.00 
Double room, “ “ . 4.00 
Single room, with bath. 3.50 
Double room, “ “ . 5.00 
to 6.00 
Members are urged to make reservations as soon as possible. 
The Section on Apiculture will meet at 9:30 a. m., Wednesday, December 31st. 
The section on Horticultural Inspection will meet at 1:30 p. m. on the same day. 
The opening session of the general Association will be held at 9:30 a. m., Thursday, 
January 1st, 1925. On that evening at 8 o’clock the meeting of the Insect Pest Survey 
and Extension Entomologists will be arranged. 
Applications for membership should be filed with the Secretary as soon as possible 
and should be accompanied with fee of $4.00. Blanks can be secured from the Sec¬ 
retary or the Chairman of the Membership Committee. 
C. W. Collins, Secretary, Melrose Highlands, Mass. 
SECOND ROCKY MOUNTAIN CONFERENCE OF ENTOMOLOGISTS 
We felt that the first Rocky Mountain Conference of Entomologists held in Pingree 
Park, Colorado, last year was quite a success, but the one held this year, August 
