293 NATURALIST'S CABINET. 



Blue sand-wasp Pens^lvaniau sand-wasp. 



posed to the sun, in Norfolk and Suffolk, but 

 rare in the neighbourhood of London. It is 

 easily distinguished from other insects by the 

 elongated pedicle of its abdomen, and very short 

 wings. When it flies it always carries its abdo- 

 men pointing upwards, so as to be nearly at right 

 angles with that part of the thorax to which it is 

 attached. 



The blue sand-wasp is, when it becomes an in*- 

 habitant of the air, about three quarters of an 

 inch in length. The antennae are black, and the 

 wings tinted blue, and tipped with black. It is 

 found in Carolina, and various other parts of 

 North America. 



The JPensylvanian sand^wasp is above an inch 

 long, and of a black colour, with the wings in- 

 clining to violet. It is ail inhabitant of North 

 America, where it feeds on grasshoppers and 

 other insects, as well as on various kinds of frui*. 

 Both these last species form their nests with con* 

 fiderable art and ingenuity. 



CICADA 



THE wax- forming cicada is found both in the 

 eastern countries and in America. Its wing 

 cases are green, margined with red and deflex- 

 ed; and the interior ones are spotted with black. 

 The larvae are elegant and beautiful creatures, 

 and to their labours the Chinese are indebted for 



