216 NEUROPTERA. 
Flight erratic, suggesting Calopterygine.” “ Gualan, Jan. 23, 1905. 2 oviposits 
unattended by ¢ by dipping abdomen-tip in floating mats of alge.” 
The occurrence of this species at the altitude of Cuernavaca would seem to be 
exceptional, if there be no error in the label; however, the specimen from Carr Cafion 
was taken at 5000 feet elevation. 
EPHIDATIA. 
Ephidatia, Kirby, Trans. Zool. Soc. Lond. xii. pp. 262, 283 (1889) **; Cat. Odon. p. 33 (1900) *. 
1. Ephidatia longipes. 
[a. type. 
Erythemis longipes, Hagen, Syn. Neur. N. Amer. p. 169 (1861)* (in part.) ; Proc. Bost. Soc. Nat. 
Hist. xviii. p. 89 (1875) *. 
Ephidatia longipes, Kirby, Trans. Zool. Soc. Lond. xu. p, 331 (1889) *; Needham, Proc. U.S. Nat. 
Mus. xxvi. t. 47. fig. 2 (venation) (1903) *. 
Hab. Corompia®; Braztt, Rio de Janeiro !2 (Reinhardt: 1 2 ], Minas Geraes1? [1 ¢ 
with blue label “ mg.,” green label “ L. longipes” in Selys’s hand] (M. C. Z.).| 
b. form ? cubensis. (Tab. IX. figg. 1-5.) 
Macromia cubensis, Scudd. Prec. Bost. Soc. Nat. Hist. x. p. 190 (1866) *; xi. p. 299 (1867) *; Hagen, 
op. cit, xv. p. 374 (1878) *. 
Erythemis cubensis, Hagen, Proc. Bost. Soc. Nat. Hist. xviii. p. 77 (1875) *. 
Erythemis longipes, Hagen, Syn. Neur. N. Amer. p. 169 (1861) (in part.) °. 
Erythemis specularis, Hagen, Stett. ent. Zeit. xxvitl. p. 98 (1867) °. 
Erythemis longipes, var. specularis, Hagen, Proc. Bost. Soc. Nat. Hist. xi. p. 293 (1867) ”. 
? Ephidatia amazonica, Kirby, Trans. Zool. Soc. Lond. xii. p. 331 (1898) *. 
The Mexican and Guatemalan material comprises mature individuals, no teneral specimens being included. 
Vertex and frons superiorly metallic blue, rest of the frons reddish, which encroaches upon the metallic 
blue more in the female than in the male. Yellowish marginal stripe on the dorsal surface of the 
abdomen reaching back to segment 4, or occasionally 5(¢), to7 or 8(?). Hind wing reddish-brown 
at base out to the submedian cross-vein or less and back to the hind end of the membranule. All wings 
smoky between nodus and stigma. Antenodals on front wing 8 (occasionally 7 or 9), on hind wing 5 
(occasionally 6); postnodals on front wing 6 (occasionally 7). 
3g. Anterior lamina rather low, bilobed, with a pencil of stiff hairs on each side directed more forward than 
downward. Genital hamule the most prominent of the genitalia, its apex two-branched ; anterior branch 
small, slender, hook-like, posterior branch four to five times wider, apex truncated with rounded angles. 
Genital lobe very small, twice or more as long as wide, tip with a few long hairs. 
Inferior abdominal appendage, at about one-third its length, with a small, median, superior tubercle. 
Q. Vulvar lamina one-fifth as long as 9, bilobed at apex. 
Dimensions.—Abdomen, ¢ 27-29, 2 26-27; hind wing, ¢ 2, 31-33; third femur, ¢ 7-8, 2 65-75 ; 
third tibia, ¢ 8-85, 2 75-8 mm. 
* In the fourth line of the characterization! of this genus, p. 283, “ first antenodal ” should be “last” &c. ; 
perhaps “ lateral carine,” in the second line, should be “ transverse” &c, 
