INSECTS. 287 



ie poles, are also usually those of the distribution of Insects ; some 

 species live even on snow and ice, as a small black insect from the 

 order TJiysanura, which some years ago (1839) was first discovered 

 by DESOR on the glacier of Monte fiosa, and after him is named 

 Desoria glacialis. 



tung, der Insecten, insbesondere der Kafer, Nov. Act. Acad. Cces. Leop. Car. XVI. i, 

 pp. 805840. 



