ODONATA OF BAJA CALIFORNIA. 477 



second lateral suture ; small marks on the metasternum; 

 an anterior and a superior femoral line (tarsi brown) ; a 

 small dorsal quadrangular spot on the basal half of i ; a 

 basal streak and an apical spot on either side of 2, or 

 streak and spot of each side united; apical fourth of 

 3-6, more or less cleft anteriorly on the mid-dorsal 

 line, and often including a minute blue spot on either 

 side ; nearly all of 7 except a transverse basal ring and a 

 minute apical spot each side (black sometimes divided by 

 a narrow, mid-dorsal, longitudinal line); sterna and 

 articulations of 3-7- 



Apical dorsal half of 10 cleft, a blue bifid tubercle in 

 the excision. Superior appendages half as long as 10, 

 pale blue, apex rounded, entire, a small, black, inferior 

 denticle on the inner side before the apex. Inferior 

 appendages a Httle longer, pale blue, directed upwards, 

 apex slightly notched when viewed in profile, upper 

 division produced into a rather acute, dorsally directed 

 black point, lower division rounded off. 



Note. One male from Comondu, otherwise agreeing 

 with the above description, has a black basal, streak on 

 either side of 4-6, thus resembling vivida. 



Males from Texas and Los Angeles, Cahf., have the 

 humeral stripe often not forked, no line on the upper end 

 of the first lateral thoracic suture, no basal streak on 2, 

 apical fifth of 3-6 black, apical streak on each side of 

 8-9. Females from Texas have no line on the first 

 lateral suture, no basal streak on 2, the black on 7 

 divided longitudinally by a pale mid-dorsal line. 



? Very pale hlac replacing the blue of the 3 ; marked 

 with black having a metallic green reflection, as in the 5 

 except as follows: 3-7 with a basal streak each side in 

 addition to the apex; 8-9 with a basal streak each side 

 and indications of such on 10. Mid-dorsal thoracic 



