290 APTERA. 



armatus, &c.), to mushrooms {A. rufescens), to fruit bushes 

 {Sminthurus luteus, &c.) ; and a few Thysanura are more or 

 less noxious, as the Silver Fish (Lepisma saccharina) (fig. 

 168), a curious silvery form found in books and in houses 

 generally. 



