ORTHEMIS. 935 
I carefully compared the individuals from Texas with those from Sapucay * in Paraguay, but could find no 
constant differences, even in those features which at first seemed to show such, ¢.g., size, the number of 
antecubitals on the hind wing, the shape of the inferior appendage of the male, and the colour of the 
venation. Pruinose individuals from Texas and Arizona seem, indeed, to retain a paler red tint on 
the veins than pruinose specimens from many other localities; it would be interesting to determine 
whether this condition has any correlation with drier climates. 
Variations in the colours of the sides of the thorax have been described by Gundlach”, and Hagen ™ has 
commented thereon ; they are often rendered difficult to understand by postmortem changes. 
The length of the pterostigma varies in the same locality; the specimens from Teapa give for that of the 
front wing: ¢ 6—-6°5, 9 6-7 mm. 
Almost all individuals have a trace of yellowish-brown in the extreme proximal end of the subcostal and 
submedian spaces of the hind wing, and sometimes also of the front wing, although to a still less extent. 
Occasional individuals, more often females, have this brown darker and reaching out, in these spaces of 
the hind wing, almost to the first antecubital and the submedian cross-vein, but this is only an individual, 
not a geographical, feature where it occurs (Medellin, Teapa, Guadalajara, &c.), 
Hab. Univeo States, Key West! in Florida, Dallas45, Waco, Round Mt. 
(Schaupp, coll. P. P.C.: 12 6), San Antonio (coll. Deam: 1 2), Shovel Mt. ®, 
Carrizo Springs (Schaupp, M. C. Z.) and Brownsville (Schaeffer, Mus. Brooklyn Inst. : 
1 2°) in Texas (colls. A. N.S., P. P. C.: 7 3,12), Pecos River!® in New Mexico, 
Gila River near Florence (Biederman, A. NV. S.: 4 6,4 2) in Arizona (IZ. C. Z., C. U. 
lot 35, see footnote, p. 104, anted); LoweR CaLirornia, Comondu’, Mesa Verde’, 
Sierra Laguna’, Sierra El Taste’, Miraflores’, San José del Cabo ‘.—Mexico, Mata- 
moros !719, Victoria (Rhoads: 1 3), Altamira (Hoag, colls. A. N.S., P.P.C.: 3 8, 
3 9) and Tampico!” 19 in Tamaulipas, Monterey (Rhoads: 5 3,4 2) and Linares 
(Barrett MS.) in Nuevo Leon, Monclova (Palmer, M. C. Z.), La Joya in San Luis 
Potosi (Hoag, coll. P. P.C.: 1 3), Mazatlan § , Presidio de Mazatlan (Furrer: 3 3) 
and Escuinapa [8 ¢, 2 2 | in Sinaloa, Amatlan [1 9 | (Batty, A. M. N. H.), San Blas 
(Schumann: 1 ¢) and Sierra Madre (Richardson: 1 3) in Tepic (Hisen & Vaslit’), 
Guadalajara (Schumann, McClendon, Tower, colls. U.S. N.M. & P.P.C.: 10 ¢, 
7 2), Uruapam (Rhoads: 1 3) in Michoacan, Jalapa (/. D. G.: 1 3), Plan del Rio 
(Barrett, coll. P. P.C.: 18), Medellin [1 ¢, 2 2 ], Atoyac [6 3,2 9] (H. . Sinith) 
(Schumann: 8 3,12), Orizaba (H. H. S. & F. D. G.: 1 2), San Lorenzo near 
Cordova [1 ¢], Omealca [8 3] (Zrujillo), and Tlacotalpam (Barrett, MS.) in Vera 
Cruz (coll. Adams), Mexico City (H. H.8.: 1 ¢, 12), Distrito Federal (Barrett, 
MS.), Cuautla [Tower: 1 3], Cuernavaca [Barrett: 13, 12] (coll. P. P. C.) 
(H. H. 8.: 148,12) [1 6] and Puente de Istla [1 3] (coll. Deam) in Morelos, 
Amula [2 ¢ ], Chilpancingo [1 ¢, 2 9] and Acapulco [1 ¢] (H. . S.) (A. Agassiz, 
M. C. Z.) in Guerrero, Mitla [1 g ] and Tehuantepec [2 ¢, 1 2] (coll. Deam) (Sumi- 
chrast, M. C. Z.) in Oaxaca, Frontera (coll. Westcott: 3 6, 2 ¢) and Teapa (H. 7. S.: 
20 g, 11 2) in Tabasco, Izamal [field Colomb. Mus. Chicago: 1 3}, Temax [3 ¢, 
* Mr. Foster has described the character of the country surrounding Sapucay in Journ. New York Ent. 
Soe. xii. pp. 179 et seq. 
