Fig. 1 . — Male ant embedded in amber. 



Although this insect lived ages ago, the 

 details of its structure are wonderfully 

 preserved. 



Fig, 3. — Dinoponera 



grandis of Brazil. 



Worker, about natural size. 

 (Photographed by C. T. 

 Brues.) 



Fig. 2. — One of the famous bull-dog ants of Aus- 

 tralia {Myrmecia tarsata) . Of a beautiful deep-blue 

 color. Mandibles yellow and tip of abdomen orange- 

 red. (Photographed by C. T. Brues.) 



