NO. 2107. DRAGON FLIES, WASHiyOTON AND OREOON— KENNEDY. 261 



darker, the posterior lobe becomes black, and the sides become 

 pruinose. Legs brown, with a black stripe on the anterior and 

 another on the interior faces of femur and tibia. Tarsi black. 



Figs. 1-2.— Archilestes californica, male. l. Dor.sal view. 2. Lateral view. 



Mesothorax and metathorax in teneral specimens brown, darker 

 above. Each mesepisternum v/ith a black stripe entirely sur- 

 rounded by a narrow light-brown line. This black stripe usually 



