256 NEUROPTERA. 
labelled “Mus. Berol.” and “fervida”]; Braziu[2 ¢], Bahiat?* (1 3] (CZ) 
(Ris, coll. P. P. C.: 1.6); West Inpiss, Havana (Baker, coll. P. P.C.: 146,12) 
in Cuba3? [Loew, Gundlach, Pocy: 6 3, 3 9], Samana [Frazar: 14 ¢, 8 2 | 
(MM. C. Z.) (coll. P. P. C., ex coll. McLachlan: 1 3) in Hayti. 
Taken at Teapa January to April, in Guatemala January to March, in April and 
May at Atoyac, in April at Acapulco, in June (Altamira) and July (Guadalajara, 
Frontera, Colon). 
Mr. E. B. Williamson made this note at San José, Guatemala, February 5, 1905 
“Common, but not easily approached. Only one mature male taken. All species 
taken at San José were in mangrove-swamp just back of beach.” 
The general appearance of ochracea resembles that of E. connata, e (fusca, Rambur), 
q. v., but the genital hamule of the male and the vulvar lamina of the female offer a 
ready means of distinction, as stated on pages 248, 249. 
4, Erythrodiplax erichsoni? (Tab. IX. fig. 42.) 
? Trithemis erichsoni, Kirby, Ann. & Mag. Nat. Hist. (6) xiv. p. 263 (1894) *. 
? Libellula unimaculata, Erichson, in Schomburgk’s Reisen Brit.-Guian. iii. p. 584 (1848) *. 
¢. The youngest individuals before me are those from Esparta. They have vertex and frons metallic-blue, 
the former with a transverse stripe at its base posteriorly, the latter with its inferior margin and the 
sides adjacent to the eyes, pale green; nasus and labrum pale green, or the former black, rhinarium and 
labrum black, or the latter edged with, or largely, orange, occiput brown. Thorax green, its dorsum 
studded with minute black points, an antehumeral stripe and some irregularly confluent markings 
(recalling those of younger stages of Anatya), blackish, humeral suture for its whole length with a dark 
brown line, a paler brown line on the vestige of the first lateral and on the upper part of the second 
lateral suture; ventral surface of thorax reddish-brown. Abdominal segments 1-3 green, their sutures, 
caring, and the posterior margin of 3 brown or blackish, 4-10 black with traces of a green stripe or spot: 
on each side of the dorsum of 4—7 or 8, and a pale area on the central ventral areas of the same ; superior 
appendages dark reddish-brown, inferior somewhat paler. Legs blackish, basal half of first femora 
greenish, of second and third reddish. 
With increasing age, nasus, rhinarium, and labrum become entirely black, but the labium not so dark; the 
blackish markings on the thoracic dorsum spread, fuse, and cover it completely; the sides of the thorax 
become blackish below the bases of the wings and above the bases of the legs, but these superior and 
inferior dark areas are separated from each other by a longitudinal green area, 1-5-2 mm. wide, reaching 
almost the entire length of the meso-metathorax, as if in prolongation of the abdomen; still later the 
entire thorax is blackish, even on the sides; pruinosity appears on the green areas and spots of dorsal 
side of 3-7, and later covers the entire dorsum thereof; ventral surface of 1-10 ultimately black; the 
appendages and bases of the femora darker. 
Superior appendages, in profile view, a little convex superiorly in the proximal half, almost straight in the 
distal half, third fourth with an inferior row of denticles terminating rather abruptly so as to project 
slightly but distinctly from the under surface of the appendage itself. Inferior appendage reaching to a 
level about halfway between the last denticle and the apex of the superior appendages. 
The extent of the brown colouring at the bases of the wings is least in the examples from Esparta, greatest 
in those from Brazil. In the former it does not reach halfway to the first antecubital or submedian cross- 
vein on the front wings, while in the hind wings its distal limit is the first antecubital in the subcostal 
space and the same level in the submedian space. The greatest extent of the brown is indicated in the 
key to the species on page 248. The extent of chalky-white bordering the brown distally is in inverse 
ratio to that of the brown, its outer or distal limit being nearly constant, viz.: the middle, or proximal 
