ODONATA OF BAJA CALIFORNIA. 547 



Agreeing with giJva throughout, i 5 +. Abd. 23, h. 

 w. 28. 



(5 Genitalia of 2 much Hke those of corriipta; external 

 hamular branch not quite as long, relatively to the length 

 of the inner branch, genital lobe longer. Superior ap- 

 pendages resembling those of corritpta; in corrti^ta the 

 inferior row of denticles when viewed from below forms 

 a reversed curve, convexity towards the inner side in the 

 basal half, towards the outer side in the apical half; in 

 illota this same row is almost a straight line, the denticles 

 are often fewer in number and separated bv longer inter- 

 vals, but not always so. The shape of the apex of the 

 superior appendages is referred to above. ? Vulvar lam- 

 ina like that of corrupt a, but projecting. 



Distribution. British Columbia to Ecuador, Yellow- 

 stone. 



Cannacria Kirby. 

 Kirby, Traus. Zool. Soc. Lond. xii, p. 300, 1889. 

 Synopsis of species. 



1. Head yellowish; abdomen rufo-testaceotis with a black dorsal baud ou 

 3 or 4-9; wings more or less tinged with smoky yellow especially to- 

 wards costa. $. Sup. app. with no inferior tooth, apex tapering (Kirby's 

 fig-) hatesii Kirby. 



2. Head luteous or reddish; abdomen reddish with or without a dorsal 

 black spot on 8-9; hind wings with a small basal yellow cloud. S Sup. 

 app. with a submedian, inferior tooth, apex tapering, inf. app. half as 

 long; anterior lamina not as i^rominent as ham ale and genital lobe, apex 

 emarginated for about one-fifth the height of the lamina, tips with a few, 

 very small spines. furcata Hagen. 



3. Frons, vertex and labrum brownish (teneral) or dark metallic blue; ab- 

 domen yellowish- or reddish-brown with a black dorsal band on 3 or 4-9, 

 widened at apex of each segment; wings with a yellowish- or reddish- 

 brown cloud between nodus and pterostigma. ^ Sup. app. with a sub- 

 median, inferior tooth, apex rounded; inf. app. more than half as long; 

 anterior lamina more prominent than hamule or genital lobe, apical half 

 biparted, tips with short spines. gravida Calvert. 



Batesii Kirby is from the Amazon and is further re- 

 ferred to under furcata below. Gravida Calvert, de- 



