NO. 2192. DRAG0NFLIE8, CALIFORNIA AND NEVADA— KENNEDY. 499 



tinuous with the black of the vertex. Postocular spots blue, mmute, 

 not connected. Eyes with the ventral three-fourths blue, which is 

 sharply separated by a horizontal Hne from the black dorsal fourth. 

 Rear of head blue. (See fig, 53.) 



Prothorax black, except anterior lobe, which is pale, and the side of 

 the middle lobe, which is blue. 



Mesothorax and metathorax black dorsaUy, the black extending 

 caudad halfway to the first lateral suture. Upper hah of mesin- 

 fraepistemum black. Second lateral suture narrowly black except 

 on its upper third where the black stripe dilates into an elliptical 

 mark. Sides otherwise blue. Coxae greenish blue with a black 

 stripe across the external face. Trochanters and femora black with 

 the inferior side yellowish green. Tibia yellow with an external, 

 black stripe. Tarsi yellow. Stigmas of the front wings black, of 

 the hind wings brown. 



Abdomen with the lower sides of segments 1 and 2, the basal half 

 of the side of segment 3 and the lower sides of segments 8-10 blue. 

 The dorsum of segments 1-7 and 10 broadly black, except a narrow, 

 pale basal ring, interrupted on the middorsal line, excepting also the 

 apex of segment 1, which is blue, and the blue dorsum of segments 8 

 and 9. Sides of segments 4-7 creamy. 



Female, color. — Similar to that of the male but with a broad, pale, 

 antehumeral stripe. (See figs. 54-55.) 



Labrum yellow, edged above with black. Nasus, genae, bases of 

 mandibles and anterior surface of frons yellow. Postclypeus, dorsal 

 surface of frons and vertex black. Occiput edged with yellow. Post- 

 ocular spots larger than in the male, not connected with each other 

 but confluent posteriorly with the pale brownish of the rear of the 

 head. Eyes greenish, darker above. 



Prothorax black on the dorsal surface, except the anterior lobe pale 

 and the pale ohve of the sides extending up farther than in the male. 



Mesothorax and metathorax olive on the sides, shading into creamy 

 on the coxae and into brown on the antehumeral stripe. The black 

 confined to the mesepistema, a spot on the dorsal edge of the mesin- 

 fraepisternum and a small spot on the upper end of the second lateral 

 suture. A brown antehumeral stripe one-third as wide as mesepis- 

 temum. Trochanters and legs creamy, with a broad black stripe on 

 the dorsal surface of the femur and a narrow external stripe on the 

 tibia. Feet pale. Wings with brown stigmas. 



Abdomen broadly black above except the apex of segment 1, a 

 minute middorsal spot on segment 8, a large apical middorsal spot 

 on 9 and a minute, basal, middorsal spot on 10, blue. Segments 3-7 

 with a narrow basal pale ring interrupted on the middorsal hne. In- 

 tersegmental membranes of segments 2-7 black; of segments 1-2 

 and 7-10 blue. Lower sides of segments 1-10 pale creamy yeIlov/= 



