104 | NEUROPTERA. 
(h) Similar to g, but colours more obscure, the vertex dark shining brown, no pale postocular spots. Not 
pruinose. Type of A. heterodoxum, Selys.—Cuernavaca. 
(7) Similar to g, head as in A, no pale postocular spots, pale antebumeral stripe as in male d.— Arizona. 
Females of the variations g to 2 show the same variations in segment 7 as above mentioned for the males. 
These colour variations are independent of size or peculiarities of venation ; structurally all agree. 
Dimensions.—Abdomen, ¢ 23°5-28, 9 24-25; hind wing, ¢ 16-20, 2 18-20 mm. 
One individual from Cuernavaca appears to furnish the transition from 6 to c, as the dorsum of segments 2 
and 3 is dark red merely margined with an obscure blackish line on either side. An Arizonan male 
connects c and d, as it has the antehumeral stripe on the left, the two antehumeral spots on the right. 
I have no doubt but that all these variations are due to differences in age, although I have not seen 
individuals connecting f with g. 
Hab. Unirep States, Tombstone (F. C. Willard, colls. Needham, P. P.C.: 33,22) 
in Arizona (0. U. lot 35*, M.C.Z.: 18,12; Morrison, coll. P. P. C., ex coll. 
Selys: 2 3, 1 @).—Mexico?4, Durango (Barrett, coll. P. P. C.: 4 3), San Luis 
(Palmer, M. C. Z.: 1 3), Uruapam (Deam: 2 5,1 2), Cuernavaca (Barrett, colls. 
Adams, McLachlan, P. P. C.: 11 ¢,19 9; H. H. Smith: 1 6, 4 2), Oaxaca 
(Deam: 1 2), Vera Cruz (Sallé} 2). 
In Arizona in March; in the Mexican localities from June to October. 
In addition to the intrinsic interest of the colour variations, due, as I believe, to age, 
the development and subsequent disappearance of the pale (red) postocular spots in 
the ontogeny of this species constitute a valuable commentary on the importance of 
these spots as a generic character. 
ANISAGRION. 
Anisagrion, Selys, Bull. Acad. Belg. (2) xlii. p. 952 (1876) ; Kirby, Cat. Odon. p. 154 (1890). 
The known species, which are confined to the Central-American fauna, may be 
distinguished as follows :— 
A. Inferior sector of the triangle usually ¢ arising at the submedian cross-vein. 
Males. 
B. Apices of front and hind wings similarly shaped. Hind wings with the 
median vein curving away from the costa toward the principal sector at the 
pterostigma, so that the area between the costa and the median vein beyond 
the pterostigma is at least three times as wide as the area between the 
* Jt has been stated in the footnote to p. 66, anted, that “C. U. lot 835” was collected by Morrison. The 
following information has come to my notice since that footnote was penned. Mr. E. A. Schwarz, at the 
meeting of the Washington Entomological Society held October 14th, 1897, said of Morrison’s Arizonan 
insects :— Morrison’s sets, when sent abroad, were usually labelled ‘ Sonora,’ and have thus been included in 
the ‘Biologia Centrali-Americana.’ When sent to American workers, however, they are labelled ‘ Arizona.’ 
They were probably all made, however, in the Graham Mountains, near Fort Grant, and above Fort Huachuca ” 
(Proc. Ent. Soc. Wash. iv. p. 209). The three specimens above cited from de Selys’s collection are labelled 
‘“‘ Arizona, Mor.,”’ in de Selys’s handwriting on his characteristic green paper. 
+ Is is the Caias Gordas female which makes the exception. 
