Id FORMIC v I ULIG1N03A. 



with the oervurea and stigma fusco-testaceous ; abdo- 

 men ovate, with the- apical margins of the segments narrowly 

 and obscurely rufo-piceous, the upper margin of the scale 

 rounded and entire. 



Worker. Length --.'11 lines. — Of the same uigro -aeneous colour 

 as the female; the clypeus obsoletely carinated in the middle; 

 the scale of the petiole, in the large worker, sometimes slightly 

 emarginate. The small worker has the legs and antenna' 

 usually paler than in the larger individuals. 



Male. Length 3$-4 hues. — Black and shining, with an aeneous 

 nnge ; the legs and apex of the abdomen pale rufo-testaceous ; 

 the scale thickened, snbrotundate and widely emarginate above. 



A very abundant species, found in banks, preferring those 

 which have a southern aspect, in which it constructs beautiful 

 and intricate galleries and passages. The nests of this species 

 frequently contain some of the rarest of our Mynnecophilous 

 beetles. 



division II. — The males much smaller than the females. 



6. Formica fuliginosa. 

 Fcemina. — Nigra, nitidissima; mandibulis, antennis pedibusque 

 rufescentibus ; tarsis, pedum articulis pallide rufescentibus ; 

 capite subcordato; squama parva, subovata ; alis hyalinis, 

 basi ad medium brunnescentibus, nervis et stigmate obscuris. 

 Operaria. — Nigra, nitidissimaj mandibulis, antennarum flagellis 

 rufescentibus, tarsis pallide runs ; capite magno, subcordato ; 

 ilisminutis; clypeo subcarinato ; squama parva, subovata, 

 marginibus lateralibus paralleli*. 



Mas.— Piceo-niger, nitidus; flagellis, pedum articulis et tarsis 

 pallescentibus ; squama parva, subquadrata, parum rotundata : 

 alis sicut in fcemina. 



Formica fuliginosa, Latr. Hint. Nat. Fourm. p. 140. pi 5. f 27 

 A. B^CD^.F?. 



Losana, Form. Piem. p. 315. 9. 

 St. Far'/. Hym. i. 200. 2. 

 Schill. Bernerk. Schles. 55. 



Nyl. Adno. Mon. Form. Dor. p. 915. 12; Form. Fr. et d'Alae'r 

 66.23. y 



