195 



/. The jigger flea \^Pulex penetrans'] (from the Danish Journal for the 

 Popular Diffusion of Natural Science), p. 755-756, and 1.2 fig. 



*^ 1023. Alfred W. Benjqett. Is protective mimiciy due 

 to natural selection ? p. 3-7. 



Opposes the arguments advanced by Fritz Miiller " that the curious 

 phenomena of protective mimicry in lepidoptera can be fully explained by 

 tlie theor}' of natural selection." The mimetic species are often far sepa- 

 rated geographically. " Difficulty of understanding how the first steps in 

 tlie approach of one insect towards another could possibly be useful in 

 deceiving an enemy." 



*i 1024. W: H. Dall. Educated fleas, p. 7-11. 



Describes an exhibition of so-called " educated fleas," and the way in 

 which they perform. Their performances "may be traced directly to the 

 desire and earnest efforts of the insects to escape." 



*^ 1025. A. S. Packard, Jr. The migrations of the de- 

 structive locust of the west. p. 22-29. 



Table of dates of migrations of Caloptenus; "the inmiediate cause of 

 the migrations of the locust from its original breeding places is the unusual 

 abundance of the species during certain years." " The secondary cause of 

 the migration is the desire for food, and possibly the reproductive instinct." 

 Possibility of predicting insect years by meteorological data. Losses sus- 

 tained in the United States from the attacks of insects; need of a salaried 

 commission of entomologists. [See Rec, no. 9 75.] 



*M026. A. S. Packard, Jr. Explorations of the Polaris 

 Expedition to the North Pole. p. 51-53. 



Notes the species of insects captured by Dr. Bessels and describes 2 new 

 species, MicrorjaMer liallii [Braconidae] and Isotoma besselsii [Poduridae]. 



*^ 1027. L: Trouvelot. The use of the antennae in in- 

 sects, p. 193-196. 



Concludes from experiments described in the article that " the sense 

 localized in the antennfe cannot be regarded only as that of touch, hearing, 

 or taste, nor can it be regarded as uniting their complex functions. ... It 

 is a kind of feeling or smelling at a great distance, by some process now 

 totally unknown." 



*^ 1028. A. S. Packard, Jr. Partiality of white butter- 

 flies for white flowers, p. 243. 



Pieris rapae abundant on a white Aster, and Coliax pliilodice on a yellow 

 Solidago, in the same field. 



*i 1029. S: H. Scudder. A flight of butterflies, p. 244- 

 245. 



A sketch, describing a flight of butterflies seen near Boston, l)y Wm. 

 Edwards, followed by notes on similar migrations, by Mr. Scudder. 



1 Record made bv Mr. George Dhnmock. 



