ARGIA. 85 
Hab. Mexico, Diente near Monterey, Nuevo Leon (Rhoads: 7 3,5 2), Atoyac in 
Vera Cruz [2 g, 1 2], Teapa in Tabasco [6 3,2 9] (H. H. Smith), Cordova}; 
GuatemaLa, Cahabon [1 ¢] and Panima [1 ¢] in Vera Paz (Champion). 
Observed, in different localities, February to May. 
The females from Diente are pruinose on the thorax below and have no metallic 
colours on the labrum or nasus. Selys’s male was larger (ab. 36, h. w. 26 mm.) than 
those I have seen. Hagen! says “The eighth segment is sometimes all blue, ¢”; I 
have not met any such, and perhaps the observation refers to those subsequently named 
A. jocosa by de Selys, although there are difficulties in the way of this view. 
18. Argia cupraurea (Selys, MS.), sp. n. (Tab. IV. figg. 24, 42.) 
d. Rear of the head black, a narrow yellow stripe along eye-margins. Thoracic dorsum metallic coppery-red 
or -green, no pale antehumeral stripe, the humeral stripe concolorous and continuous with the mid-dorsal. 
Segment 2 blue, each side with a superior longitudinal black band from base to apex, widened before the 
latter, and an inferior brown stripe almost as long ; 3-6 blue, apical sixth black; in the males other than 
the type a narrow, black, inferior, longitudinal stripe extends forward from the apical black nearly to 
base ; 7 black, basal fifth blue; 8 and 9 blue, each side with an inferior black stripe for the apical two- 
thirds of 8 and the entire length of 9. 
Q. Differs from the male as follows :—A pale yellowish antehumeral stripe three-fifths as wide as the mid- 
dorsal. Humeral stripe forked at its upper end, slightly wider than the pale antehumeral. Segments 
2-8 yellow, a broad, mid-dorsal, metallic-black band, and each side with a narrow, inferior, longitudinal, 
dark stripe, leaving, however, a pale basal ring on 3-7; 9 pale (yellow or blue?), each side with a 
superior band for the basal two-thirds and an inferior stripe for the entire length of the segment, black. 
3 2. Pterostigma surmounting more than one cell on all wings, ‘8 mm. long on the front, °9 mm. long on 
the hind. 
Antenodal cells 5 on the front and 4 on the hind wings in all this material. 
Dimensions.— Abdomen, g 29, 9 27:5; hind wing, ¢ 20, 9 22 mm. 
Hab. Panama (coll. C. C. Adams: 1 6,1 2), David (Champion: 1 3 ).—VeENEZUELA 
(Dr. Habuel *, coll. P. P. C., ex coll. Selys: 1 3), San Esteban (coll. P. P. C., ex coll. 
Selys: 1 3,1 2, with labels “‘ cupraurea” in de Selys’s handwriting). 
19. Argia nea. (Tab. IV. figg. 10, 43, 44, 44s.) 
Argia wnea, Hagen, in Selys, Bull. Acad. Belg. (2) xx. p. 407 (1865) *; Calvert, Proc. Calif. Acad. 
Sci. (2) iv. p. 481, t. 15. figg. 21, 22 (apps. ¢) (1895) %. 
d. Rear of the head black near the occipital foramen, pale along the eye-margins, sometimes one and sometimes 
the other colour predominating. Thoracic dorsum metallic coppery-red or dark metallic brown f, or with 
metallic-green or metallic-purple reflections ; pale antehumeral stripe absent or present only for its upper 
end, or in the single teneral male examined complete and one-eighth as wide as the mid-dorsal. Humeral 
stripe coloured like the mid-dorsal, with which it is mostly continuous. Segment 2 violet or blue, each 
side with a superior and an inferior blackish stripe, the former wider at its hinder end; 3-6 violet or 
blue, with the apical sixth to third (on 3), third to half (on 6) black, which may extend forward along the 
inferior margins of the segments to their bases; 7 black, except a pale, transverse, basal ring; 8 and 9 
violet or blue, with or without an inferior black stripe each side ; dorsum of 10 blue, with a transverse, 
apical, black stripe. 
* [? Hahnel.—Ep. | 
t It was so in the alcoholic males which I described *, and which are surely conspecific. 
