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 Earope. 



Mr Di,nysz bas also written an interesting article (55) upon the 

 pigaaeut f-pots (embryonic testicles) of the larva of Ej^hestia kuehni- 

 elld. While searching for the natural enemies of this insect, his 

 attention was drawn to the published note of Mr. Archibald 

 •Gnikie (17), referred to on p. 13. Mr. Danysz then segregated 

 a number of Epheslia larvse with the black spots upon their backs 

 in the hope of securing some of the parasites, but his expectations 

 were disappointed, f>r they all transformed successively to chrysa- 

 lids and adults without presenting any abnormal features, while of 

 the parasites he did not Sc-cure a single specimen. His close watch 

 of th^^ black spot, however, furnished him with a very interesting 

 observation. By dissecti m 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 litile 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 twi) long canals with the genital 

 armature. The fact; that larvse with black spots always produce 

 males, left no doubt tliat these organs were testicles in the process 

 of development — a c >nclusioa already reached by Mr. E. B. Poul- 

 tou in the fall of 1888. (See p l-i.) 



In this same year (189o) Dr. F. Decaux published (56) a short 

 illust'ated article on Ephestia kuehnielia 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 

 pub ished reports on tliis insect, and was intended as a time'y 

 warning to millers and dealers to be on the lookout for it. In 

 January, 1891, Mr Gerald McCarthy published (62) a notice of 

 the Mediterranean Hour moth's presence in North Carolina, saying 

 that it is likely to become a serious pest in that state. 



In Dcember, 1892, J sent out a circular letter regarding the 

 floar moth, calling attention to its appearance in destructive num- 

 bers on tne Pacific coast. This is, I believe, the first authentic 

 re(?ord of its occurrence in the Qnited States. The notice natur- 

 ally interested the general public and several California papers 



(46) printed it. During the same month 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 in California, with a review of 

 the remedies used elsewhere for its suppression. I furnished an 

 HrMcle of tlie 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 'AaiericHn Miller" in 1H95 (67, 68, 72, 73). In the March 

 number (67) I gave a brief summary of former publications, 

 a short skeich of the insect's life history, a preliminary account 

 of my experiments, a review of the remedies used in various 



