50 PLATE CCCCXI. 



A rare infect in England. Inhabits woods. The fmalleft figure 

 denotes ^the natural fize. 



FIG. II. II. 

 TILLUS BIMACULATUS. 



GENERIC CHARACTER. 



Antenna* filiform and ferrated : head fomewhat declining : thorax 

 convex, oblong and attenuated both before and behind: body 

 linear and elongated, 



SPECIFIC CHARACTER. 



Tillus Bimaculatus: blue-black : with a pale ferruginous 

 fpot on the wing-cafes. 



Fabricius defcribes three fpecies of the genus Tillus in his 

 Entomologia Syftematica, elongatus, ambulans, & ferraticornis ; all 

 which are found in Europe, and the two firil in this country. To 

 thefe Mr. Marfliam adds two other Britifh fpecies, seneus and virens ; 

 including at the fame time, as a fifth fpecies, the Clerus unifafciatus 

 of Fabricius. Thus it appears, we poffefs five defcribed fpecies of 

 this genus in Britain, neither of which agreeing with our prefent 

 infect, we prefume to offer it as a fixth and new fpecies. 



Befides the five fpecies of Tillus above mentioned, the late 

 Fabrician work, Supplem. Enl. Sz/ji. contains two more fpecies, 

 damicornis, a native of America, and Weberi, a German infect. 

 Neither of thofe, however, correfpond with out infects 5 and we have 



therefore 



