ANATOMY AND PHYSIOLOGY 



Will fed wasps with sugar and then replaced it with powdered alum, 

 which the wasps unsuspectingly tried but soon rejected, cleaning the 

 tongue with the fore feet in a comical manner and manifesting other 



121 



125 



FIGS. 118-127. Types of antennal sensilla, in longitudinal section (excepting Figs. 121 

 and 122). Fig. 118, sensillum coeloconicum ; 119, coeloconicum; 120, basiconicum; 121, 

 styloconicum; 122, chasticum; 123, trichodeum ; 124, trichodeum; 125, placodeum; 126, 

 ampullaceum; 127, ampullaceum; c, cuticula; h, hypodermis; n, nerve; s, sensory cell. 

 Figs. 118, 120, 123, 125, 126, honey bee, Apis mellifera; 119, 121, 124, Fidonia piniaria; 

 122, moth, Ino pruni; 127 wasp, Vespa crabro. After SCHENK. 



signs of what we may call disgust. Forel offered ants honey mixed with 

 morphine or strychnine; the ants began to feed but at once rejected the 

 mixture. In its range, however, the gustatory sense of insects differs 

 often from that of man. Thus Will found that Hymenoptera refused 



