NO. 2192. DRAG0NFLIE8, CALIFORNIA AND NEVADA— KENNEDY. 511 



dages of the male with three minute teeth along their lower edge, the 

 inferior appendage with a large midapical lobe and lacking the pair 

 of superior basal hooks found in ihoreyi and pryeri. The stylus in the 

 female is placed at the apex of the genital valve. (See figs. 99-105.) 



TANYPTERYX PRYERI (Selys). 



This interesting species is fomid in Japan, and hke a number of 

 other species finds its nearest relative on the Pacific slope of North 

 America. The wings reproduced in the accompanying illustrations 

 (figs. 124-125) are traced from photographs made in Brussels, while 

 the remainder of the illustrations of iwyeri are from the specimens in 

 the Philadelphia Academy of Science. 



The following is a description of these specimens. 

 Color of male. — Black and yellow with the general appearance of 

 liageni. 



Labium black. Face black, except a small yellow spot on base 

 of mandible. Frons yellow, except on its posterior edge. The yel- 

 low of the frons extends down in front over the dorsal fourth of the 

 middle two-fourths of the nasus. Vertex black. Occiput black on 

 the anterior surface, yellow on the posterior surface. Posterior sur- 

 face of head black. (See fig. 106.) 



Prothorax large, black, except its anterior lobe yellow, and a large 

 yellow oval on each side of the posterior lobe. 



Mesothorax and metathorax black, with the dorsal or inner haK of 

 each mesepisternum yellow as are also the anterior alar fossae. A 

 large yellow area lying between the humeral and second lateral su- 

 tures; this extending dorsoventrad from just below the lateral alar 

 ridge to below the spiracle ; its upper edge parallehng the alar ridge, its 

 ventral end romided, its width approximately one-half the distance 

 between the humeral and second sutures. A large triangular yellow 

 area on the metepimeron. Infraepisterna, coxae and legs black. 

 Pterostigmas brown. 



Abdomen black with yellow as f oUows : 



Segment 1 with a small dorso-lateral spot on each side of apex. 



Segment 2 with an hourglass-shaped spot on each side above the 

 auricle and anterior to the lateral vertical carina. A large wedge- 

 shaped spot posterior to the vertical carina. 



Segment 3 on each side with a narrow, vertical, basal spot extend- 

 ing from middorsal carina ahiiost to lower edge of side, a narrow ver- 

 tical spot on the anterior side of the vertical carina and a minute 

 latero-apical spot. 



Segments 4-7 similar to segment 3, but the spot anterior to the 

 vertical carina lacking. 



Segments 8 and 9 with the apical spots only. 



Segment 10 with a minute spot in the center of the dorsal surface. 

 Appendages black. 



