290 NEUROPTERA. 
2. Macrothemis pseudimitans. 
Macrothemis pseudimitans, Calvert, Proc. Bost. Soc. Nat. Hist. xxviil. pp. 319, 329, t. 2. fig. 85 
(pattern, side of thorax) (1898)!; Proc. Calif. Acad. Sci. (3), Zool. 1. p. 393 (1899) *. 
Macrothemis imitans, Calvert, Proc. Calif. Acad. Sci. (2) iv. p. 581, t. 16. figg. 83, 35-39 (details 
& 2) (1895)* (nec Karsch). 
Hab. Lower Catirornta, Sierra San Lazaro 3, San José del Cabo? (Kisen, coll. 
P. P.C:8 8,1 2).—MeExico, Victoria in Tamaulipas (Rhoads, A. N. S.: 1 2), 
Tepic!2 (Eisen & Vaslit, Calif. Acad. Sci.: 1 2), Atoyac (H. H. Smith, Schumann : 
12 ¢, 2 2), San Lorenzo Cordova (Trujillo : 3 3), Orizaba [2 ¢ |, Matamoros in 
Puebla [2 ¢ ], Rio Balsas in Guerrero [1 2 ] (Barrett, coll. P. P. C.), Teapa in Tabasco 
(H. H. Smith: 1 3), Isthmus of Tehuantepec (Sumichrast'); GUATEMALA, Sepacuite 
[Griggs: 1 3], San Felipe [Maxon & Hay: 1 ¢|(U.S.N. M.), San Gerénimo [4 ¢ ], 
San Isidro, 1600 feet [1 ¢ ] (Champion), Gualan [Deam, Williamson: 5 3 |, Zacapa 
[1 ¢] (coll. Wilmsn.), Mazatenango (Hine, 0. 8S. U.: 1 3); Costa Rica, San Francisco 
(Rogers: 1 3 ).—VeweEzvELa [1 2? ], San Julian [Zyon: 1 g ] (U.S. N. M.); Ecuavor, 
Agua Clara [1 ¢ |], Cerro Azul [2 ¢ ] (Campos R., A. N. 8.). 
Taken in January (Victoria, Guat.), February (Teapa, Guatemala), March (Sepacuite), 
May (Atoyac), June (Orizaba, Matamoros), July (San Julian), September and October 
(Lower California *), November (Tepic 2), and December (Rio Balsas). 
8. Macrothemis hemichlora. 
Libellula hemichlora, Burm. Handb. Ent. ii. p. 849 (1839)*; Calvert, Trans. Amer. Ent. Soc. 
xxy. p. 61 (1898). 
Dythemis hemichlora, Hagen, Syn. Neur. N. Amer. p. 317 (1861) *. 
Macrothemis hemichlora, Kirby, Trans. Zool. Soc. Lond. xii. t. 54. fig. 8 (in colours), t. 57. fig. 11 
(tarsal claws) (1889) *; Calvert, Proc. Bost. Soc. Nat. Hist. xxviii. pp. 319, 829, t. 2. figg. 27 
(inf. app. 3), 32 (pattern, side of thorax) (1898) °. 
The females from Teapa (25 taken in February alone) show a number of the variations in wing-markings 
described ° for Colombian and Venezuelan females. 
The females from (a) Mexico, Central America, and Ecuador differ from those of (6) the remaining South- 
American material in having more brown at the bases of the wings; on the hind wings of (a) this 
brown reaches out to the first antecubital (at least along the subcostal vein) and half-way to the sub- 
median cross-vein, while in (6) it reaches only half-way, or much less than half-way, to the first 
antecubital and is absent from the submedian space; on the front wings of (a) the brown reaches out 
in the subcostal space half- to one-third-way to the first antecubital, and is absent in (0). No such 
differences are shown by the males, in all of which brown is almost, or altogether, absent from the bases 
of the wings. 
The females from Rio Janeiro have a pale longitudinal stripe on each side of the mid-dorsal carina of 
abdominal segments 6—8, those on 6 and 7 being nearly as long as those segments, those on 8 half as 
long as the segment, and in the same place on 9 a small basal dot. Most of the females from the other 
localities haye not these pale markings on segments 8 and 9, and the stripes on 6 and 7 are hardly 
one-third as long as the segments. Since traces of markings like those of the Rio Janeiro examples are 
found in some from Teapa and Santa Lucia, perhaps the differences are partly due to age. 
