18 
tervals when circumstances favor. He places no reliance upon the 
idea that it is being, or has been, imported in numbers from 
America into Europe. 
Mr. Danysz has also written an interesting article (55) upon the 
pigment spots (embryonic testicles) of the larva of Ephestia kuehni- 
ella. While searching for the natural enemies of this insect, his 
attention was drawn to the published note of Mr. Archibald 
Geikie (17), referred to on p. 13. Mr. Danysz then segregated 
a number of Ephestia larvae with the black spots upon their backs 
in the hope of securing some of the parasites, but his expectations 
were disappointed, for they all transformed successively to chrysa¬ 
lids and adults without presenting any abnormal features, while of 
the parasites he did not secure a single specimen. His close watch 
of the black spot, however, furnished him with a very interesting 
•observation. By dissection he found that the pigment spot in 
question consisted of two reddish brown reniform corpuscles placed 
in the cellular tissue above the digestive tube, and that these same 
organs, a little modified, were easily recognizable in both the 
chrysalis and adult, so united in the latter, however, as to form a 
single ovoid body, connected by two long canals with the genital 
armature. The fact that larvae with black spots always produce 
males, left no doubt that these orgaus were testicles in the process 
of development—a conclusion already reached by Mr. E. B. Poul- 
ton in the fall of 1888. (See p L ».) 
In this same year (1893) Dr. F. Decaux published (56) a short 
illustrated article on Ephestia kuehniella in which he reviews 
its habits and suggests means for its destruction; and Prof. Law¬ 
rence Bruner, of the University of Nebraska, published a short 
illustrated article (61), which is principally a compilation from 
published reports on this insect, and was intended as a tirne'y 
warning to millers and dealers to be on the lookout for it. In 
January, 1894, Mr. Gerald McCarthy published (62) a notice of 
the Mediterranean flour moth’s presence iu North Carolina, saying 
that it is likely to become a serious pest in that state. 
In December, 1892, I sent out a circular letter regarding the 
flour moth, calling attention to its appearance in destructive num¬ 
bers on the Pacific coast. This is, I believe, the first authentic 
record of its occurrence in the United States. The notice natur¬ 
ally interested the general public and several California papers 
(46) printed it. During the same mouth another newspaper 
(47) printed a reporter’s account of an interview with me con¬ 
cerning this insect, and I published mvself (48) a short account 
of its past history and appearance iu California, with a review of 
the remedies used elsewhere for its suppression. I furnished an 
article of the same general character, for the January (1893) 
issue of “Milling”, which was reprinted in another monthly 
journal (50) devoted to the same interest. The most import¬ 
ant articles I have contributed on this subject appeared in 
the “American Miller” in 1895 (67, 68, 72, 73). In the March 
number (67) I gave a brief summary of former publications, 
a short sketch of the insect’s life history, a preliminary accouut 
of my experiments, a review of the remedies used in various 
