240 
GENUS NEONEURA (oDONATa) 
teneral male from the former locality, in the head and thoracic 
markings is as dark as almost any of the Costa Rican specimens. 
No CJnatemalan specimens seen by me have the thoracic black as 
reduced as it frecpiently is in Costa Rican specimens. Specimens 
from San Tomas, Guatemala, are especially dark. These speci- 
mens -were taken at a large spring at approximately sea-level. 
Structurally the males of amelia are most easily separated from the 
males of esthera l>y the inferior appendages, which are acute in 
profile view in amelia and are broader with the apex semicircular 
in esthera. A male of amelia from Santa Barbara has the abdo- 
men 28.0 mm., the hind wing 18. 
The female of amelia has the head above very variable as in the 
male; usually, in addition to the spots described by Calvert, 
there are traces of the apices of the two lateral jirongs of the 
trident described above in the male, and there is a black spot at 
either end of the occipital crest. The thorax is pale with re- 
duced black markings, and with little or no variation, as con- 
trasted with the great vaT'iability of the male. 
Guatemala: all in 1909, Morales, May 27; Puerto Barrios, 
i\Iay28; San Tomas, May 29; Gualan, June 14; Los Amates, 
June 19 and 21 ; a total of sixty-one males, five females. 
Costa Rica: Rio Cieniguita, November 4, 1909, (Calvert); 
Agua Buena Creek, in forest, Holanda Farm, November 7, 1909, 
(Calvert); Rio Bananito, November 10 , 1909 .(Calvert); Rio 
Liberia, January 10, 1910, (Tristan and Calvert); Rio iNIedio, 
east of Santa CAtiz, January 22, 1910, (Calvert); Rio Santa 
Barbara, below the town of the same name, Guanacaste, January 
28, 1910, (Tristan and Calvert); a total of fourteen males, two 
females, seen by me, others in Calvert’s collection. 
The following notes on living colors have kindly been given me 
by Dr. Calvert, “cf. — Eyes reddish brown above gradually 
blending into pale green with a black pseudopupilla below. 
Lpper surfaces of head (including labrum), thorax and first three 
abdominal segments bright red with black markings. Labrum 
pale luteous. Rear of head black, pale yellow along eye margins. 
Sides of thorax lirown with black markings at the sutures. Sides 
of abdominal segments 2 and 3 and almost all of 4-10 black; 4-7 
with a transverse basal narrow ring and a confluent mid-dorsal 
longitudinal line almost as long as each segment, yellow. \"entral 
