ADDENDA. 225 



I have omitted the Linnean character, " thorax 

 postice retusus/* because it is not by any means 

 peculiar to this genus, and the above seem fully 

 sufficient without it. T. pedestris, Fab. I just now 

 observed, belongs to this genus ; more of the same 

 habit may be seen in Mr. Francillon's rich cabinet, 

 these are all ''"corporeglaberrimo;" the shape of their 

 abdomen is similar to that of Formica, and they 

 seem to be intermediate between that genus and 

 the hirsute Mutillce. The latter genus, if these 

 prove at last genuine Mutillce, might be divided into 

 two families, *. corpore glabro. * *. corpore pu- 

 bescent!. I have examined only one male insect 

 of this genus, M. Europcea. It varies from the fe- 

 male in the shape of its eyes, which are somewhat 

 reniform, and its' anus has a minute spine on each 

 side, circumstances which give it considerable affi- 

 nity with Scolia, and shew how the genera shade 

 one into another. Its squamulae likev/ise are very 

 large, and its neck embraces the anterior part of 

 the thorax. 



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TABU- 



