This remarkable insect is distinguished from all others by its 

 long pubescent or rather pilose antennae : it seems to be inter- 

 mediate between Bolitophila and Macrocera, having the neu- 

 ration of the wings of the one, and the elongated antennae of 

 the other ; but these contain 1 6 joints, which is a greater num- 

 ber than they are composed of in those genera : the situation 

 also of the ocelli is different to those of Macrocera, and their 

 equal size do not accord with the Bolitophilae. 



The only example I have seen of this pretty insect was 

 taken by W. W. Saunders, Esq., whose name it bears, and 

 to whose liberality I am indebted for the specimen, accom- 

 panied by the following observations. 



" The Gnat I caught on the 9th of April last, while it was 

 resting on a wall in an outhouse at Weston Turville, near 

 Aylesbury. I remarked that the hind legs of the insect were 

 stretched out behind, without touching the wall, in the way 

 that Gnats are often seen to hold them, and that the antennas 

 were gently curved forward, forming perhaps an angle of 

 forty-five degrees between them." 



The Plant is a variety of Thymus Serpyllum (Mother of 

 Thyme). 



