AMPHIPTERYX.—CORA. 43 
In one of the males from Sabo there is a single cross-vein in the median space on three of the wings; it is 
proximal to the first antecubital on the left front and right hind wings, distal to the first antecubital on 
the right front wing. 
2. A transverse yellow occipital line. The hind prothoracic lobe also possesses two dorsal lamellate processes 
(not mentioned by de Selys), but they are separated by a greater interval than in the male, are yellow in 
colour, or have only the anterior edge black, and instead of being upright are curved forward toward 
each other and then backward. It is only the upper end of the mid-dorsal thoracic band that is confluent 
with the antehumeral, and this latter does not reach as far down as in the male, and may partly or 
completely enclose a yellowish spot at its upper end. The mesepimeral black stripe is interrupted for the 
greater part of its length, thus leaving what de Selys described as “une grande tache inférieure entre la 
suture humérale et la lre latérale et un vestige supérieure analogue sous Vaile.” The metepisternal stripe 
is represented by a short stripe on the upper end of the second lateral suture. 
The basal spot on the sides of abdominal segments 3-7 is followed by (sometimes continuous with) a narrow 
yellow line reaching nearly to the apices of those segments. A small apical spot on either side of 
segment 8; a larger one on either side of 9, sometimes connected with a fellow of the opposite side by a 
transverse apical dorsal band, which is also prolonged forward on the dorsum almost to the base of the 
segment ; sometimes no such dorsal colouring exists ; in the former case the dorsum of segment 10 is also 
pale, in the latter it is black. 
Genital valvules with the apical half of the ventral margin finely denticulate. 
Abdomen, ¢ 40-42, © 31:5-36; hind wing, ¢ 37, 2 38 mm. 
Hab. Mexico (U. 8S. N. M.: 1 2, last four abdom. segm. lost); GuatemaLa, Sabo 
[2 ¢], Purula [1 2], San Gerdnimo [4 ¢,1 2], all in Vera Paz (Champion).— 
CoLomsia !. 
CORA. 
Cora, Selys, Syn. Calopt. p. 71 (1853) ; Monogr. Calopt. p. 262 (1854) ; Kirby, Cat. Odon. p. 118 
(1890). 
The two species of the present fauna may be separated as follows :— 
Nodus situated halfway between the base and the apex of the front wings. 
Thoracic dorsum blue, green, or orange, with narrow, black, median 
and humeral stripes. Wings hyaline, or with the apex pale brown, 
and a pale brown patch extending from the nodus to half or three- 
fourths of the distance to the pterostigma. (¢?.) - . . . . « J. marina, Selys. 
Nodus situated halfway between the base and the inner end (or even. the 
middle) of the pterostigma on the front wings. Thoracic dorsum 
black, with a yellow humeral line. Wings with a dark brown trans- 
verse band commencing beyond the nodus (at one-third the distance 
from the nodus to the pterostigma) and reaching to the inner end of 
the pterostigma or more remote, but leaving the extreme apex of the 
wing clear. (9 unknown.) . . . . 1... 1... 1 + « « 2 semiopaca, Selys. 
Eleven other species of this genus are known from South America. 
1. Cora marina. (Tab. III. figg. 31, 32.) 
Cora marina, Selys, Aun. Soc, Ent. Belg. xi., Compt. Rend. p. lxix (1868)'; Bull. Acad. Belg. 
(2) xxvii. p. 678 (1869) *; Kirby, Cat. Odon. p. 118 (1890) *. 
g2 
