OFNATURE. 87 



When the tree-hug^ Faun. Suec. 700. has 

 depofited its eggs in the boughs of the fir tree, 

 excrefences arife fhaped like peas. When an- 

 other fpecies of the tree-bvg^ Fn. 695. has 

 depofited its eggs in the moufe-ear chickweed 

 or the fpeedwell, Fl. 12. the leaves contra6l in 

 a wonderfull manner into the ftiape of a head. 

 The water-fpider^ Fn. 11 50. excludes its eggs 

 either on the extremities of xht juniper^ which 

 from thence forms a lodging, that, looks like 

 the arrow-headed grafs^ or on the leaves of the 

 poplar^ from whence a red globe is produced. 

 The tree-loufe^ Fn. 1355. lays its eggs on 

 the leaves of black poplar, Fl. 821-i which 

 from thence turn into a kind of inflated bag, 

 andfo in other inftances. Nor is it upon plants 

 only that infedls live, and lay their eggs. The 

 knats^ Fn. 11 16. commit theirs to ftagna- 

 ting waters. The water infedt called mon- 

 oculus^ Fn. 1 182. often increafes fo immenfely 

 on pools, that the red legions of diem have 

 the appearance of blood. Others lay their eggs 

 in other places, e. g. the beetle in dunghills. 

 The dermeftes in fkins. The flejh fy in pu- 

 trifyed fleili. The cheefe-maggot in the cracks 

 of cheefe, from whence the caterpillars ifTuing 

 forth oftentimes confume the whole cheefe, 



G 4 and 



