52 HYMENOPTERA. 



179. FORMICA SANGUINEA. B.M. 

 Formica sanguinea, Latr. Hist. Nat. Fourm. 150. 



Hab. Europe and North America. 



180. FORMICA FUSCA. B.M. 

 Formica fusca, Linn. Faun. Suec. no. 1722. 



Hab. Europe and North America. 



181. FORMICA NIGRA. B.M. 

 Formica nigra, Linn. Faun. Suec. no. 1723. 



Hab. Europe and North America. 



182. FORMICA UMBRATA. B.M. 

 Formica umbrata, Nyl. Addit. Mon. Form. Bor. Eur. 1049. 

 Hab. Europe and North America. 



183. FORMICA LATERALIS. B.M. 

 Formica lateralis, Latr. Hist. Nat. Fourm. 172. 



Hab. Europe and North America. 



184. FORMICA DISLOCATA. 



Formica dislocata, Say, Bost. Journ. Nat. Hist. i. 288. 6. 

 Hab. North America (Indiana). 



185. FORMICA INCISA. B.M. 



Female. Length 4 lines. Shining black : head elongate with 

 the sides parallel, the vertex deeply notched ; the anterior margin 

 of the face ferruginous, the mandibles armed with five or six 

 sharp teeth, the flagellum nigro-piceous. Thorax oblong-ovate ; 

 wings fusco-hyaline, the nervures black, the tarsi and knees fer- 

 ruginous. Abdomen oblong-ovate, the margins of the segments 

 narrowly testaceous ; the scale incrassate, compressed, with the 

 margin entire. 



Hab. Mexico. 



SUBDIVISION 2. 



Anterior wings with one marginal and two submarginal cells, 

 the discoidal cells obsolete. Sp. 186-197. 



