390 CALIFORNIA ACADEMY OF SCIENCES. [Peoc. 3D Ser. 



25. Dythemis velox Hagen, var. sterilis Hagen. 



Dythemis velox Hag. var. sterilis Hag., Calvert, Proc. Bost. Soc. Nat. 



Hist., Vol. XXVIII, 1898, p. 310. 

 Dythemis sterilis Hagen, Syn. Neur. N. Am., 1861, p. 317; Calvert, Proc. 



Cal. Acad. Sci , 2d Ser., Vol. IV, 1893-94, P- 522, PI. XVI, figs. 52-55. 

 Dythemis Broadwayi Kirbv, Ann. Mag. Nat. Hist., 6th Ser., Vol. XIV, 



1894, p. 227. 



2$ 8 ? Tepic, Oct., 1894, Eisen and Vaslit. 

 1 & 2 ? " Nov., 1894, " 



6 $ 5 ? No date or locality. 



9 S 15? 



I have examined the type of D. Broadwayi Kirby from 

 Trinidad and find it to be identical. 



26. Dythemis velox Hagen, var. (?) nigrescens var. nov. 



Male very similar to sterilis male, but the vertex and the frons superiorly 

 dark metallic violet or blue, a crescentic black spot on the nasus, labrum 

 black, but green along the base in the younger individuals, lateral labial lobes 

 barely edged with black on their inner edge or this black as wide as one-fifth 

 of the width of the lobe; pale green or yellow stripes on 4-6 half as long, on 

 7 half to two-thirds as long, on 8 one-third as long as the respective seg- 

 ments, a pale spot on the middle of each side, 10 unspotted; wings uncolored 

 at the base, brown at apex for the width of but one cell. 



Female very similar to sterilis, vertex luteous, frons luteous or pale green 

 with a metallic violet point in the superior groove at its base, no spot on the 

 nasus, labrum pale green or luteous, edged with black at the middle of the 

 free margin, lateral labial lobes barely edged with black along their inner 

 margins, pale green or yellow markings on 4-7 two-thirds as long (or more) 

 as the segments, on each side of 8 a double pale spot at the base and One 

 at the apex, lateral margin of 9 with a yellow stripe, 10 unspotted or with a 

 pale point each side, wings yellowish at base, brown in the subcostal spaces 

 half-way to the first antenodal on all the wings, and in the submedian space 

 of the hind wings to the cross-vein, brown at the apex, varying from a width 

 of but one cell to a band reaching to the outer end of the pterostigma. 



Dimensions: Abdomen, $ 28-29.5 mm., ? 28-31 mm.; hind wing, S 

 33-34 mm., 9 33-35 mm. 



20 & 21 ? Tepic, Oct., 1894, Eisen and Vaslit. 

 1 $ 8 ? " Nov., 1894, " 



1 3 3 ? No locality or date. 



223 32 ? 



