146 
Journal of Agricultural Research 
Vol. XIV, No. 3 
PLUTELLA MACULIPENNIS CURTIS (iJ, p. 5) 
Information as to the proportional relations of the two sexes in this 
species is not particularly definite in the paper by Mr. Marsh, his statement 
being: “Fifty-two adults, about equally divided as to sex, developed 
on November 2 and 3.” In the summing up of such data as the writer 
has been able to assemble, this species appears in Table XX as 26 males 
and 26 females. 
CARPOCAPSA POMONELLA LINNAEUS ( l6 ) 
A general deduction from all data given of rearings puts the pro¬ 
portional relations of the sexes as nearly equal, with a very slight pre¬ 
ponderance of females. The same species (5, p . 52) is reported by Mr. 
A. G. Hammar as including 456 males and 563 females in a total of 
1,019 individuals. Further information as to the codling moth is to be 
found in the paper by Messrs. Jones and Davidson (9, p. 120-121), 
where, in Table VI, the moths issuing from 151 pupae are shown to com¬ 
prise 67 males and 84 females. In Table XXIX (9, p . 146), of 65 adults 
32 are reported as males, 33 as females, while in Table XT (9, p. 155) the 
males make up only 21 of a total of 54. Summing up the data for 
C. pomonella it is found that of 1,289 individuals the males include 576; 
the females 713; a percentage of 44.7 and 55.3, respectively. 
SANNINOIDEA OPALESCENS HENRY EDWARDS (l2, p . 79) 
Mr. Dudley Moulton in his records for 1908 and 1909 on this species 
accounts for 232 adults and lists them as 118 males, 114 females. 
SYNANTHEDON PICTIPES GROTE AND ROBINSON (8, p. 411) 
Mr. J. T. Xing, in his paper on the lesser peach-tree borer, places 12 
adults as to sex; 4 are determined as males and 8 as females. On the same 
page of the bulletin five adults are divided as to sex into 2 males and 
3 females. 
ARCHIPS ARGYROSPILA WALKER ( 6 , p. 2 $?) 
Messrs. Herrick and Teiby had under observation 227 pupae from larvae 
kept in jars “in an open air insectary under normal conditions of tempera¬ 
ture.” Sex determinations of 155 individuals proved 85 to be males 
and 70 to be females. 
The same species was under observation by Mr. W. M.. Davidson (2) 
in 1911, who states that of 76 adults 29 were males and 47 were females. 
ARCHIPS ROSACE AN A HARRIS (14, p. 30 ) 
In an article by E. D. Sanderson and Mrs. A. D. Jackson, published in 
the Journal of Economic Entomology, December, 1909, the authors 
state that from 62 pupae there issued 35 males and 27 females. 
