306 NEUROPTERA. 
of the hyaline spot of the anal margin extending distad from that margin 3 mm. (Florida ¢). The 
males from San Luis Potosi and Amula have the brown only a little less extensive. In the Jalapa male, 
on the anterior margin of the wing the brown barely reaches the second antecubital, although it fills the 
triangle, its distal margin is much jagged; the hyaline spot of the anal margin extends distad 4 mm. from 
that margin so that a “neck” of brown remains, of but 3 mm. width, connecting the anterior and posterior 
parts of the brown spot. In females from several localities (Round Mt., Guadalajara, Cuernavaca, 
Sardinero), as well as in many males, the brown attains the third antecubital. The maximum on the 
anterior part of the wing for the females from Teapa is the second antecubital, the minimum barely 
beyond the first, the hyaline spot extends distad 4-5-5 mm. from the anal margin, the “ neck” of brown 
is reduced in width to 2°5-2 mm., the brown falls short of reaching the hind margin by 3-3°5 mm. 
Two features, but not invariable, which distinguish most onusta from most carolina, are the existence of but 
a single row of cells, (a) between the two sectors of the triangle, and (6) 3 in the anal loop *, of the hind 
wings, carolina having two rows in at least parts of these two areas. 
Hab. Univep States, Columbus? and Cincinnati?’ in Ohio, Indiana, Illinois %, 
Tennessee !°, Missouri 9, Oklahoma®, Key West? [1 ¢] in Florida [1 ¢ |, Dallas %, 
Round Mt. [Schaupp: 1 3,3 9] (A. N.S.), Carrizo Springs (1. C. Z.), Esperanzo 
Ranch near Brownsville (Schaeffer, Brookl. Inst.: 1 3), and Pecos River! in Texas 
[colls. A. NV. S., P. P. C.: 2 3 |, Mesilla [Cockerell: 1 3 | in New Mexico, Wilson’s 
Lake near Pasadena | Grinnell: 1 3 | in California ; Lower CatirorniA, Mesa Verde 4, 
Sierra El Taste 4, Miraflores 4, San José del Cabo‘ [Hisen: 1 3] (coll. P. P. C.).— 
Mexico (Schumann: 1 2), Matamoros!, Altamira (Hoag, coll. P. P. C.: 38, 
Lampazos (coll. Deam: 1 2), Mazatlan’, Tepic® [1 2 ], Guadalajara [4 3, 2 2] 
(Schumann), San Luis Potosi (Hoag, A. V. 8.: 1 3), Jalapa (F. D. G.: 1 3 ), Cuerna- 
vaca (Barrett, coll. P. P. C.: 1 9), Teapa [3 3, 3 2], Tuxtla [1 3] near Amula 
[13a] (H. H. Smith) in Guerrero; Panama *.—Wesr Inpizs, Sardinero (Robinson, 
A. N. S.: 1 2) in Cuba 23, St. Thomas °, Guadeloupe °. 
Excluding the northern part of its range, 7. onusta has been taken in January 
(Sardinero), February (Teapa), March (Mesilla), May (Esperanzo Ranch), June 
(Altamira), July (id., Wilson’s Lake, Lampazos, Altamira, Tepic, Guadalajara), August 
(Tuxtla), September (S. Luis Potosi, Amula), October (Mazatlan °, Cuernavaca), and 
November (Tepic°); in Lower California in May, September, and October ¢. 
The colour-changes of the frons described above may seem to throw some doubt on 
the employment of the coloration of this part as a specific character in 7. cophysa, 
insularis, and abdominalis. In those species, however, not only have no such great 
changes been observed in individuals of different ages, but also the different colours 
are associated with different structural characters, which is not the case with the 
different colours observed on the frons of 7. onusta. 
* Anal loop is here used, as first defined by Profs. Comstock and Needham, Amer. Nat. xxxii. p. 910 (1898), 
to include the area enclosed by A, and A,, and not that between A, and A,, as Prof. Needham’s fig. 17 in his 
‘ Genealogic Study ’ (1903) would seem to imply. 
