16 Psyche [March-June 
zontal extension (humerulus) of the falx (see pi. 1, fig. 4). 
Uncus lobe subtriangular in situ , spoon shaped when slightly 
compressed in flat ventral view, from slightly to one-fifth longer 
than the falx and hardly two-thirds the length of the lobe of 
Pseudochrysops bornoi. Valve allied to that of the latter but 
better developed in the processus superior, thus approaching a 
more normal (though still very squat) Plebejince shape which it 
resembles only insofar as a puffer resembles a pike; very small 
and short, hardly attaining the length of the sedeagus, twice or 
less than twice as long as broad, heavily humped; the hollowed 
outline formed by the mentum (which here seems somewhat 
upturned in situ) and the (strongly receding here) margin of 
the body of the valve extending laterally (i.e., subparallel to the 
long axis of the valve) rather than “vertically” as it does in 
bornoi (where the upper process is poorly developed) ; the free 
part of the upper process (rostellum) throughout its length 
snugly resting upon and merging with the hollowed margin, but 
when manipulated seen to be sinuous, flexible looking and long; 
ending in a more or less broad coxcomb with well developed or 
greatly developed teeth oriented along the long axis of the valve, 
longer relatively to it than in other Plebejince (except one pale- 
arctic species, Plebejus argus L. where, however, they point 
obliquely down as in Itylos, sensu mihi ), and providing the 
main characters for distinguishing the four species. 
Female: fibula resembling P. bornoi but shorter (0,1 long by 
as much broad distally and twice broader proximally). Everted 
henia stumpy and short. 1 Papillae anales about 0.3 long by 
0.3-0.4 broad, with rods 0.7 long, thus shorter (both in relative 
and absolute size) than in bornoi. 
Cyclargus dominica Moschler 
(figS. DOM, pi. 3) 
Two males investigated: prep. 501, “Baron Hill, Jackson 
Town, 1200 ft., March, leg. L. Perkins,” Mus. Comp. Zool., and 
508, id., “July,” id. 
JEdeagus 0.75 long, suprazonal portion shorter by half than 
1 My impression is that the extensibility of the henia and its prop so marked 
in all Plebejince (see Chapman, 1916 op. cit.) is more limited in Pseudochrysops , 
Cyclargus and Hemiargus (s. mihi ) in contrast to the rest of the neotropical 
genera examined which conform to the Old World type in this respect. I have 
dissected, however, only a few females and my results should be checked on more 
material. 
