17G FORMICID.i:. 



b. First joint of pedicel without any appendix 

 beneath. 

 a'. Clypeus nut carinate or toothed. 



a'-. First node of pedicel distinctly longer 

 than broad, 

 rt '. Head and thora.x blackish brown : 

 metanotal spines very short, 

 barely a quarter of the length 

 of the space between their bases . T. cliristici, p. 178. 

 i'. Head and thorax more or less 

 rusty red ; metanotal spines 

 longer, as long as, or longer than 

 the space between their bases. 

 a*. Metanotal and metasternal 



spines subequal T. coo7ioorense, p. 178. 



h\ Metanotal spines distinctly 



longer tliau metasternal spines. 



a'. Metanotal spines very long', 



more than half length of 



thorax and strongly bent 



inwards '1\ ciirvispinosion, p. 179. 



0'. Metanotal spinesshorter, diver- 

 gent, not bent inwards .... T. cwtulum, p. 180. 

 h- First node of pedicel as broad as, or 

 broader than long. 



a^. No metasternal spines T. salvatum, p. 180. 



P. Metasternal spines or teeth present. 



rt^. Metanotal spines reduced to 



2 short upturned points or 



teeth T. nursei, p. 181, 



6*. Metanotal spines longer. 



«^ Head coarsely striate, opaque. T. mixtum, p. 182. 

 i\ Head shining, finelj^ striate ; 



striffi wide apart T.fergusoni, p. 182. 



b'. Clypeus either carinate or toothed. 



a~. Clypeus with two short obtuse teeth. T. transversarium^-p.lSS. 

 b'-. Clypeus not toothed. 



a^. No antennal furrow T. iiu/lebyi, p. 183. 



b^. Antennal furrow distinct. 



a*. First uode of pedicel distinctly 



longer than broad. 



«"'. Thorax above only slightly 



convex, laterally margined ; 



the sides compressed and 



vertical T. (fuineense, p. 184. 



b'\ Thorax rounded and convex 

 above, not margined ; the 

 sides not compressed or 



vertical T. scabrum, p. 185. 



b\ First node of pedicel as broad as, 



or a little broader than long . . 2\ simillvmnn, p. 185. 

 B. Antennae 11-jointed. 



a. First node of pedicel longer than broad. 

 «', Spines very long, as long as, or longer 

 than half length of thtirax. 

 a*. Meso- and metanotum obtusely mar- 



o-ined T. jnlosum, p. 180, 



