118 Zoologica: N. Y. Zoological Society [HI; 3 



"detumescence" in sexual psychology and "enhancement," 

 "relief" and "catharsis" in art. Kempf (1921) in his valuable 

 contribution to psychoanalysis has used the term "craving" in- 

 stead of appetite, avoiding the "libido" of the Freudians which 

 embodies the same notion. In a recent volume' Bertrand 

 Russell takes essentially the same view of the phenomena 

 of appetite but uses the word "desire." Most of the authors 

 cited deal, of course, with man, but one can hardly over- 

 estimate the value of their work for the animal behaviorist and 

 entomologist. It is certain that insects have well-developed sym- 

 pathetic and glandular systems and that their alimentary and 

 sexual behavior presents quite as definite a picture of appetites 

 as does the corresponding behavior of the higher animals. 



Fouillee believes that every appetition involves a rudimentary 

 cognition and that automatic behavior like that of the habits 

 and reflexes is merely lapsed appetition. If it could be shown 

 that the latter really can have this derivation and that such 

 ontogenetic mechanisms as habits can acquire representation in 

 the germ-plasm and hereditary transmission, we might be in a 

 position to give a consistent account of all animal behavior, and 

 one which would lead us to regard the reflexes and the tropisms 

 as ultimate, highly specialized end-stages instead of primitive, 

 elemental components of behavior. 



' "The Analysis of Mind," London and New York, Allen, Unwin 

 Macmillan, 1921. 



Postscript. 



Just as the final proof of this paper was being returned to 

 the printer Prof. I. W. Bailey received a letter from Col. David 

 Prain, Director of the Royal Botanical Gardens of Kew, with 

 the identification of the Tachigalia. It proves to be T. panindata 

 Aublet. Col. Prain compared our specimens with Aublet's type 

 in the British Museum Herbarium. 



Among the various social beetles considered in the latter part 

 of my paper I should have included Phrenapates bennetti Kirby, 

 the habits of which were studied by Ohaus (1909) in Ecuador. 

 I shall have occasion to return to this insect in a future 

 publication. 



