78 NEUROPTERA. 
the way to the apex, or even to the apex on 8; these superior stripes are Sometimes fused on the mid-dorsal 
line on 8. 
3 Q. Pterostigma of the front wings 1 g, 1:2 mm. 9 long, surmounting one cell (55°6 °/, g, 70 °/, 2), more 
than one cell (33°3°/, 3, 24°/, 9), or less than one cell (11 9/, bd, 6 °/o 2); of the hind wings, 1-1 ¢, 
1:3 2 mm. long, surmounting one cell (48°5 9/, ¢ 9), more than one cell (43 °/, 3, 515 °/, 9), or less 
_ than one cell (8°5 °/, 3). 
Antenodal cells of the front wings 5 (80°75°/, d, 85°/) 2), 4 (13°75 %o 3, 12°/, 9), 44+ (3%, Q), 
6 (2°75 °/, 3), or 3(2°75°/, 2); of the hind wings 4 (94°5°/, 3, 917s 2), 5 (275%, 3, 6/5 Q), 
3+ (3°/, 2), or 3 (2°75 °/, 3). 
Dimensions.—Abdomen, ¢ 29°5-35, 2 30°5; hind wing, ¢ 22-26, 9 25 mm. 
Hab. LowER Catirornia, Comondu!, Mesa Verde!, El Paraiso!, Sierra San Lazaro 1, 
Miraflores [2 ¢,1 2], and San José del Cabo [3 3, 2 9] (Hisen & Vaslit; Haines ; 
colls. P. P. C. and Calif. Acad. Sci.).—Mexico, San Blas (Richardson: 3 2), Sierra 
Madre (Buchan-Hepburn, coll. McLachlan: 2 3,1 2), Rio Cocula [1 ¢] and Rio de 
las Balsas [1 ? ] (Barrett, coll. P. P. C.), Tepetlapa [1 ¢], Tierra Colorada [1 ¢ |, 
Savana Grande [4 ¢, 2 2 |, Venta de Zopilote [2 ¢, 1 ?], Rincon [2 2 ], Dos Arroyos 
[2 ¢,2 2], Rio Papagaio [1 ¢,1 2], and Acapulco [1 ¢], all in Guerrero (H. H. 
Smith). 
In spite of the metallic colours of this species, which, preserved in alcohol, caused — 
me to formerly 1 identify it as A. cuprea, Hag., the nearest relative is A. translata, which 
A, tezpt appears to replace on the western coast, as may be seen by comparing the 
habitats of these two forms. In different localities it has been taken from March to 
October. 
The specific name ¢ezpi is derived from the legendary “‘ Noah” of Michoacan. 
7. Argia sedula, (Tab. IV. figg. 7, 32, 32 s.) 
Agrion sedulum, Hagen, Syn. Neur. N. Amer. p. 94 (1861) '. 
Argia sedula, Selys, Bull. Acad. Belg. (2) xx. p. 411 (1865)?; Kellicott, Journ. Cincin. Soc. Nat. 
Hist. xvii. p. 203 (1895) *; Williamson, 24th Ann. Rep. Dept. Geol. Indiana, p- 263 (1900) *. 
3. Rear of the head chiefly pale. Pale antehumeral stripe one-half to one-third as wide as the black 
mid-dorsal. Humeral stripe wider than the pale antehumeral. Segment 2 blue, each side with a 
longitudinal black stripe, the two uniting on the mid-dorsal line for the posterior half to three-fourths 
(or even the entire length) of the dorsum; 3-7 black or dark brown, the sides inferiorly and the entire 
basal sixth to eighth blue; the black is often narrowed on the middle of 3-5 or —6, and in one male 
the constriction is so great as to entirely separate the postbasal from the apical area; 8 blue, each side 
with an inferior longitudinal black stripe on the apical third to half; 9 blue, each side with an 
inferior longitudinal black stripe for the entire length of the segment, this in some specimens not quite 
reaching the base. 
Q. Differs from the male as follows :—Thoracic dorsum pale brown, mid-dorsal stripe reduced to a black line 
on the carina, no humeral stripe. Segments 2-7 pale brown, with traces of darker markings corresponding 
to the black areas of the male; 8 and 9 pale brown, unmarked. 
3 9. Pterostigma of the front wings, -75 3, °9 mm. 9 long, surmounting less than one cell (62°/, 3, 
42 °/, 2), one cell (31 °/, 5, 33°/, 2 ), or more than one cell (7 °/, 3, 25 °lo 2); of the hind wings, 
‘9 5, ‘9-1 mm. Q long, surmounting less than one cell (51 °/, 3, 45 °/, 9), one cell (37 °/, ¢, 
41:5 °/, 2), or more than one cell (12°/, ¢, 135 °/, 2). . 
