26 Psyche [March-June 
Measurements (in mm.): aedeagus 0.70-0.95, suprazonal 
portion 0.36-0.52 (mean 0.48), subzonal portion 0.3-0.46 
(mean 0.40), with mean breadth 0.11 (in lateral view), penis 
mean 0.73; furca mean 0.19; sagum mean 0.2 7. Vertical/Hori- 
zontal extension of uncus: forearm 0.15/0.022 to 0.24/0.045 
(mean 0.2/0.035), humerulus mean 0.07/0.12, shoulder mean 
0.1/0.06, lobe 0.19/0.045-0.26/0.06 (mean 0.24/0.05) . Valve: 
0.53-0.68 (mean 0.6) with breadth 0.24-0.36 (mean 0.3). 
The length of the suprazonal portion of the aedeagus is very 
constantly around 0.5 in most of the sixteen males measured, 
gradually reaching 0.52 in a large Bolivian specimen (prep. 
517) and in the Bogota one, but abruptly falling to 0.4 in the 
Cariputo specimen and to 0.36 in the (small) Martinique one. 
In the latter the suprazonal portion is shorter than the subzonal 
one (0.46), a ratio not met with in any other specimen; it would 
be interesting to see whether this applies to a special Martinique 
race, or is merely the result of irregular dwarfing in this par- 
ticular individual. The subzonal portion is fairly constant at 
around 0.39, reaching 0.46 only in the above mentioned speci- 
men and in the Surinam one, and falling to 0.3 in the Cariputo 
individual. The length of the forearm re'mains steadily at 0.2 1 
in the majority of the specimens, rising to 0.22 in two (Surinam 
and Puerto Rico) and to 0.24 in one, but falling to 0.15 in the 
Cariputo specimen (where the whole armature is greatly re- 
duced in size) and to 0.19 in a dwarf measuring 7 mm. from 
base of Cu to end of M x of forewing (Bolivia, prep. 518) as well 
as in another (smallish) individual from Sao Paulo. For the 
horizontal extension of the humerulus and for the height of the 
uncus lobe, 0.12 and 0.24, respectively, are the most frequently 
met measurements, with the humerulus steadier than the lobe 
which is much more sensitive in its reaction to the vertical 
growth or dwarfing of the forearm. The valve reaches 0.68 in 
my only Haitian specimen, but otherwise is very constant at 
close to 0.6, dwindling to 0.58, 0.56, and 0.53 in the small 
specimens from Martinique, Taboga, and Coroico. 
Hemiargus ramon Dognin 
(figS. RAM, pi. 4) 
Two males investigated (both in Mus. Comp. Zool.): prep. 
573, “Quayaquil, Ecuador, V-1924,” ex coll. Weeks, and prep. 
616, “San Rafael, Ecuador, VII-1919, leg. E. W. Rorer.” 
