Genus LVIL SPHEX. 



GENERIC CHARACTER. 



Antenna filiform, with 10 articulations. Mouth 

 armed with jaws, but no tongue. Palpi four. 

 Wings extended and incumbent in both sexes. 

 Sting short, pointed, and concealed within 

 the abdomen. 



General Observations. 

 This genus is divided into two families : 



1. With the antennae filiform, and the ab- 

 domen connected to the thorax by a pe- 

 dicle, or stalk. 



2. With the antennae filiform, but the abdo- 

 men sessile, or joined to the thorax without 

 the intervention of a pedicle. 



The Spheges live entirely on the honey of 

 flowers. The females may be seen flying from 

 place to place in search of a proper situation 

 to form their nest, and at times making a hum- 

 ming noise, which is supposed to be a mark of 



