r 75 ] 



PLATE CCCCXCVir. 



FORMICA RUFA. 



RUFOUS ANT. 

 HYMENOPTERA. 



GENERIC CHARACTER. 



Feelers four, unequal, with cylindrical articulations, placed at the 

 tip of the lip, which is cylindrical, and nearly membranaceous : an- 

 tennae filiform : a frnall erect fcale between the thorax and abdomen : 

 females and neuters armed with a concealed fting : males and females 

 Jurnithed with wings, neuters winglefs. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 

 Black : thorax compreffed, and with the legs ferruginous. 



Formica rufa : nigra, thorace compreffo pedibufque ferrugineis, 

 Fabr. Sp. Inf. 1. p. 439- n. Q.—Mant. Inf. 1. 

 p. 308. u. 7. 



Formica fusca ? Geoff. Inf. p. % p. 428. 



Except the Formica herculauea, to which the prefent fpecies bears 

 a ftriking refemblance both in appearance and magnitude, this is one 

 of the largeft fpecies of the ant tribe found in Europe. Like the 



L 2 former, 



