ERYTHRODIPLAX. 249 
FF. Males with hind wing blackish-brown at base out as far as fourth 
to fifth antecubital and distal angle of triangle, thence retreating 
towards the base but touching the hind margin well distad to the 
anal “angle”; front wing with basal brown occupying the 
entire width as far as the first or second antecubital and to or 
into the internal triangle; basal brown of wings not bordered 
with white ; frons convex superiorly, its superior and anterior 
surfaces passing insensibly into each other; hamule much less 
prominent than genital lobe. Females with yellow at base of 
hind wing out to or into the discoidal triangle . . - . . . 5. unimaculata. 
DD. Genital lobe truncated almost vertically, angles of truncation rounded, 
more prominent than hamule*; vulvar lamina.subequal in length to the 
lateral margin of abdominal segment 9; colouring variable . 6. connata and variations. 
CC. Hind wing with sectors of the triangle more often separated at origin +, 
only one cell between the posterior angle of the triangle and A, 
immediately opposite, at least one post-triangular cell reaching the entire 
distance from short sector to first sector of triangle; vulvar lamina at 
least as long as abdominal segment 9. 
G. Males with the hind wing ochraceous at base out to the submedian 
cross-vein, genital lobe more prominent than the hamule; front 
wing of both sexes with the internal triangle two-celled or free, and 
usually two cells immediately distad to the discoidal triangle: size 
small (see p. 268). 2 6. 1 ew eee ee ee ee we 7, minuscula. 
GG. Males with wings uncoloured, genital lobe not more prominent than 
hamule; front wing of both sexes with the internal triangle more 
often three-celled and usually three cells immediately distad to the 
discoidal triangle: size larger (see pp. 268-271) ; two colour-forms 
of females, the head and thorax of the one coloured like (homceo- 
chromatic 2), of the other coloured unlike (heterochromatic ? ), 
those of the male. . . . . . . +... . . 8. dberenice and subspecies neva. 
1. Erythrodiplax funerea. 
Libellula funerea, Hagen, Syn. Neur. N. Amer. p. 158 (1861) *; Proc. Bost. Soc. Nat. Hist. xviii. 
p. 72 (1875) *. 
Belonia funerea, Kirby, Cat. Odon. p. 29 (1890) *. 
Trithemis funerea, Calv. Proc. Calif. Acad. Sci. (8), Zool. i. p. 898 (1899) *. 
Trithemis tyleri, Kirby, Ann. & Mag. Nat. Hist. (7) ill. p. 864, t. 15. fig. 1 (entire ¢) (1899) °. 
Supplementing the notes which I have given‘ on the extent of the coloured areas of the wings in the males 
and homeochromatic females: in mature individuals the front wings may be (a) blackish-brown from 
the base outward to about midway between nodus and stigma, except in the costal and median spaces 
* See Tab. IX. fig. 41. 
+ Some specimens of E. connata, as @ and @’, vary in the direction of separated sectors, and must be 
compared with the other characters given. 
