47^ CALIFORNIA ACADEMY OF SCIENCES. 



II. Rear of head predomiuantlj' blackish. 



3. Eyes brown above iu life. S Head aud thorax mostly metallic violet; 

 abdomen mostlj^ black; snp. ajjp. half as long as 10, apical third bifid, 

 outer-upper branch larger. ? Head and thorax and abdomen mostly 

 black, 10 blue, 9 blue with a black spot each side at base. 



cupra'a Hagen. 



4. 6 Eyes bright red in life; head and thorax mostly metallic brown; 

 abdomen mostly violet or violet-blue, with black markings; suiJ. app. 

 nearly as long as 10, extreme ajiex bifid, branches equal. 



(ejiea Selj's. 



3. Argia agrioides (Selys MS.) n. sp. PL xv, fig. 14. 



53 9? Comoudu. 



5 1 Baja Purisima, April, 1889, C. D. Haines. 



El Rosario, May, 1889, CD. Haines. 



San Jose del Cabo, not dated. 



San Jose del Cabo, Sept., 1893, G. Eisen. 



San Jose del Cabo, Oct. 1893, G. Eisen. 



Mesa Verde, Oct. 1893, G. Eisen. 



Sierra El Taste, Sept., 1893, G. Eisen. 



Miraflores, Sept., 1894, Eisen & Vaslit. 



San Jose del Cabo, Sept., 1894, Eisen & Vaslit. 



48 5 26? 



5 Bright blue, the following black: sometimes aline 

 from each antenna base to the anterior ocellus; a stripe 

 from each eye to and behind the lateral ocellus of the 

 same side, the right and left stripes uniting in the middle; 

 a stripe from each eye to the side of the occiput, where it 

 is connected with the preceding stripe; a mid-dorsal 

 band on the prothorax, but often leaving small median 

 blue spots — two on the middle and one on the hind lobe ; 

 a mid-dorsal thoracic bapd whose width is little if any 

 more than that of the blue remaining on either side of 

 itself (/. e. blue predominating on thoracic dorsum) ; a 

 humeral stripe, forked in its upper half, the posterior 

 branch diverging, running upwards and slightly back- 

 wards, but not reaching the base of the front wing, some- 

 times interrupted; a short line marking the upper end of 

 the first lateral thoracic suture ; a complete line on the 



