494 bulletin: museltm of comparative zoology. 



published by Mayr is incorrect, as it shows the petiole narrowed above, 

 instead of broad, and the spines are not drawn sufficiently prominent. 



The workers vary in the color of the thoracic pleurae, which in some 

 specimens have the lower portions dark brown. 



C. dentahis is not confined to the forests, but lives also among 

 scrubby vegetation near the coast or in cultivated districts. 



75. Camponotus (Colobopsis) mayriella, nom. nov. 



Cohbopsis carinata Mayr, Verb. Zool. bot. gesellsch. Wien, 1870, 20, p. 934. 

 (nee Formica carinata Brulle, 1846). 



Soldier. Length 6.5-7.5 mm. 



Head quadrate, nearly a third longer than broad, sides, except at cheeks, 

 straight, posterior border shallowly concave. Mandibles with 6-7 stout teeth. 

 Clypeus a little narrowed in front, anterior corners rounded, border very in- 

 distinctly concave at middle, middle with a sharp carina, surface flat in front. 

 Cheeks shallowly impressed, the impressed portion bordered by an interrupted 

 carina. Frontal carinae little divergent, extending to opposite middle of eyes. 

 Frontal area broadly triangular. Front anteriorly with a short, rather sharp 

 carina. Antennal scapes barely surpassing occipital corners; funicular joints 

 all more than twice as long as broad, terminal joint slender and as long as the 

 two preceding joints together. Thorax in profile feebly convex, sutures 

 distinct. Epinotal base as long as the declivity and broadly rounding into it. 

 Node more than twice as high as long, convex in front, fiat behind, upper 

 border narrowly concave at middle and roundly margined. Femora moder- 

 ately impressed. 



Shining. Mandibles coarsely punctate and rugose-striolate. Cheeks and 

 clypeus with short rugae. Head and body finely coriaceous. 



Erect hairs very sparse, on head and gaster and tips of femora. Sparse fine 

 appressed pubescence on head, body, and appendages. 



Fuscopiceous. Front of head, mandibles, and antennae rufous. Legs 

 fulvous, with the femora infuscated. 



Worker. Length 5.5 mm. 



Head elongate, rounded behind eyes, sides in front of eyes straight and 

 subparallel. Mandibles 4-dentate. Clypeus convex, feebly carinate at 

 middle, anterior border rounded. Antennal scapes surpassing occipital border 

 by half their length; basal funicular joints nearly four times as long as broad, 

 decreasing in length toward the ape.x, terminal joint shorter than the two pre- 

 ceding joints together. Thorax long and low, and weakly impressed at 

 sutures. Base of epinotum nearly straight in profile, longer than the declivity 



