Vol. xxvii] ENTOMOLOGICAL NEWS. 333 
A Remarkable Abdominal Structure in Certain Moths (Lepid.). 
In Papilio, II], 41, 1883, R. H. Stretch published an article entitled 
“Anal Appendages of Leucarctia acraea’ and figured the appendages. 
In EntomotocicaL News, XXVI, 166, 1915, F. W. Russell, M.D., pub- 
lished a paper entitled ‘““A Remarkable Abdominal Structure in Cer- 
tain Moths.”-This also was illustrated. Both observers described this 
curious organ in acraea. The species is a common one and the insect 
evidently only protrudes the organ on special occasions, otherwise it 
would be more commonly observed. At the time Dr. Russell made his 
observation he was not aware that the organ had been previously 
known and described.*—HENRY SKINNER. 
Entomological Literature. 
COMPILED BY E. T. CRESSON, JR., AND J. A. G. REHN. 
Under the above head it is intended to note papers received at the 
Academy of Natural Sciences, of Philadelphia, pertaining to the En- 
tomology of the Americas (North and South), including Arachnida and 
Myriopoda. Articles irrelevant to American entomology will not be noted; 
but contributions to anatomy, physiology and embryology of insects, how- 
ever, whether relating to American or exotic species. will be recorded. 
The numbers in Heavy-Faced Type refer to the journals, as numbered 
in the following list, in which the papers are published. 
All continued papers, with few exceptions, are recorded only at their 
first installments. 
The records of papers containing new species are all grouped at the 
end of each Order of which they treat. Unless mentioned in the title, 
the number of the new species occurring north of Mexico are given at 
end of title, within brackets. 
For records of Economic Literature, see the Experiment Station Record, 
Office of Experiment Stations, Washington. Also Review of Applied Fin- 
tomology, Series A, London. For records of papers on Medical Ento- 
mology, see Review of Applied Entomology, Series B. 
1—Proceedings, Academy of Natural Sciences of Philadelphia. 
4—The Canadian Entomologist. 9—The Entomologist, London. 
11—Annals and Magazine of Natural History, London. 16—Bul- 
letin, Societe Nationale d’Acclimatation de France, Paris. 50—Pro- 
ceedings, U. S. National Museum. 51—Novitates Zoologicae, 
Tring, England. 60—Anales, Museo Nacional de Buenos Aires. 
79—La Nature, Paris. 86—Annales, Societe Entomologique de 
France, Paris. 161—Proceedings, Biological Society of Washing- 
ton. 177—Quarterly Journal of Microscopical Science, London. 
184—Journal of Experimental Zoology, Philadelphia. 206—The 
Scottish Naturalist, Edinburgh. 259—Publications, Carnegie In- 
stitution of Washington. 272—Memorias, Real Academia de Cien- 
cias y Artes de Barcelona. 285—Nature Study Review, Ithaca, 
N. Y. 291—Proceedings, Staten Island Association of Arts and 
Sciences. 447—Journal of Agricultural Research, Washington. 
*See also Papilio, III, 84, 1883. 
