THYSANOPTERA. 125 



of the mandibulate character to induce its being placed 

 in the mandibulate section. 



The females in some species have a visible curved 

 boring ovipositor; and in some species the male is 

 apterous. 



These insects form the order Thysanoptera (Ovaavoi, 

 thy sanoi, fringe ; irrtpov, pteron, wing), a description 

 of which was omitted in the earlier part of the work (viz. 

 in chapter iii. and the tabular summary, p. 60), as 

 unnecessary and perplexing to a beginner, from its con- 

 taining only one small group of anomalous insects. 



