MEXICAN FORMICID^. 865 



7. Camponotus tepicanus n. sp. 



Large worker: Length, 5 mm. Head slightly longer 

 than broad and slightly narrowest anteriorl}^, the sides 

 nearly straight, the occiput but slightly emarginate. Cly- 

 peus somewhat longer than broad, slightly broadest an- 

 teriorly, convex above and without a median carina, its 

 anterior margin arcuate. Frontal area obsolete. Man- 

 dibles very robust and provided with five or six rather 

 blunt teeth. Antennae short, the scape reaching barely 

 beyond the occiput. Thorax uniformly arcuate above, 

 broadest in front and gradually diminishing in width to- 

 wards the scale. The prothorax is about two -thirds the 

 width of the head and slightly convex above; sides of 

 metathorax nearly parallel; sutures between the segments 

 distinct; scale stout and of nearly equal thickness, broad- 

 est above, the apex slightly arcuate and bluntly rounded. 

 Legs stout. 



Head and thorax semi -opaque, the occiput polished, 

 densely and finely granulated and sparsely punctured, the 

 punctures most dense on the vertex and thorax; an im- 

 pressed longitudinal line between the frontal caringe. 

 Clypeus somewhat polished, the granulation extremely 

 fine, almost obsolete, the surface sparsely punctured. 

 Mandibles nearly smooth, rather indistinctly and finely 

 striated and sparsely punctured. Abdomen densely gran- 

 ulate-punctate. 



Erect hairs reddish and quite dense and fine on the 

 thorax and scale, somewhat coarser and more sparse on 

 the abdomen, except on the posterior margin of the seg- 

 ments; very sparse on the head. Posterior tibi^ without 

 erect hairs; very few on the scape. Appressed pubes- 

 cence minute, most dense on the thorax and abdomen. 



Head, scape, first joint of the flagellum, thorax and 

 legs reddish-yellow. A large, somewhat squarish, poste- 



2d See., Vol. V. (56) December 30, 1895. 



