ENALLAGMA. 111 
Je n’ai pas vu la femelle. Je donne & cette variété ou race le nom de plebeium” *. 
The smallest dimensions given? for the male of /. civile are abdomen 22, hind wing 
15 mm. The Mexican material which I have examined is of larger size. The 
individuals from Arizona, however, vary considerably in their dimensions: abdomen, 
3 21:5-26°5, 2 22:5-26°5; hind wing, ¢ 16-19, 9 17-20°5 mm.; and all the males 
have the pterostigma “ cerclé de blanchatre.” It is not clear whether de Selys meant 
to restrict the name plebeium to the Putla individuals or to include “ ceux des Etats- 
Unis,” but in either case the facts here presented make the distinctness of such a race 
or variety very doubtful. 
Prof. Kolbe’s description * of a male £. civile, from Puerto Rico, speaks of “ oberen,” 
“ mittleren,” and “unteren Appendices anales.” The “mittlere” appear to be the 
pale tubercle of the superiors, while the “ untere” are the inferiors. 
4. Enallagma prevarum. 
Agrion prevarum, Hagen, Syn. Neur. N. Am. p. 88 (1861) . 
Enallagma prevarum, Selys, Bull. Acad. Belg. (2) xli. p. 516 (1876) *; Williamson, Ent. News, xi. 
pp. 456, 458, t. 9. figg. 4, 6 (apps. g) (1900) °. 
gd. Pale margin of the epistome blue instead of yellow* in most adults. Abdominal segment 8 blue on the 
dorsum, as Hagen’ implies, and Sallé’s Vera Cruz male, cited below, shows; not blackish as de Selys 
states’. Black on segment 3 bluntly-pointed anteriorly, and oceupying the apical fourth, or more 
acute and covering the apical third, or (1 ¢, New Mexico; 21 g, Arizona; 1 3, Los Angeles; 5 g, 
Monterey ; 2 ¢, Durango; 1 ¢, Uruapam; 1 3, Mexico city) the black is prolonged toward the base 
as a hastate band occupying the apical half to four-fifths of segment; transitional individuals, however, 
occur among the material from Arizona, Durango, and Mexico city. Black on segment 4 occupying 
the apical half to two-thirds, and usually constricted at four-fifths of the length of the segment; on 5 
occupying the apical two-thirds to four-fifths ; the amount of black on 3 is independent of the amount 
on the following segments. Ten individuals from Arizona have, on the average, one less postcubital on 
both front (10) and hind (9) wings than ten individuals from Mexico city. In de Selys’s description *? the 
word “inférieur ” in the first line, p. 517, is an error for “ supérieur.” 
©. In those individuals taken in coitu, the black on abdominal segment 1 reaches to the apex of the 
segment. 
Hab. Unrrep States, Kansas (Banks, 1894); New Orleans?; Hast slopes Culebra 
Range f (Lieut. Carpenter, M. C. Z.: 1 3) and Las Cruces (Cockerell, coll. P. P. C.: 
1 ¢), New Mexico; Tucson (MC. Z.: 4/8 ; coll. Addams: 11 3, 22), Arizona 
(I. C. Z., C. U. lot 85: 10 2, 5 9); Los Angeles (coll. Adams: 1 3) and Wilson’s 
Lake, Pasadena (F. Grinnell, jr., P. P. C. det. 1900), California—Mexico (Deppe'), 
Monterey (Rhoads: 6 ¢), Durango (Barrett, coll. P.P.C.: 53,22), San Luis 
(Palmer, MU. C. Z.: 2 3), Guadalajara (Schumann: 2 3,1 2), Queretaro (Dean), 
* This name plebeium has been omitted from Mr. Kirby’s ‘ Catalogue of Odonata,’ 1890. 
+ This specimen is simply labelled “ New Mexico, 6/27/75, W. L. C.” The initials are probably those of 
Lieut. W. L. Carpenter, U.S. Army, whose previous collections of Neuroptera were sent to and reported upon 
by Dr. Hagen. Lieut. Carpenter states in his report (Rep. Chief of Engineers, U.S.A., for 1876, pt. 3, p. 346) 
where he spent the month of June, 1875, and the locality given above is the most exact that I can deduce 
therefrom. 
