1945] Notes on Neotropical Plebejinoe 9 
wings. 1 Falx very big, long and thick, fatter than in Chilades , 
and not distinctly separated to the eye into its components 
(humerulus, elbow, etc.) owing (1) to its not bunching at the 
shoulder as it does in Chilades (in ventral view); (2) to the 
unusual (unique in Plebejinoe, typical in Catochrysopince ) slant 
in the part that corresponds to the, very upright, forearm of 
Chilades, with a consequently wide and weak falcal arch; and 
(3) to its even breadth from basal point to almost three-quarters 
of its length; thus of a limacine appearance increased by the 
fact (again unique in this subfamily, but frequent in Catochry- 
sopinoe) that in ventral view the point of the oblique falx seems 
twisted away from the lobe instead of curving hookwise toward 
the latter as it does in Chilades (or other genera) where it at- 
tains the tip of the lobe. Uncus lobe narrow and long, exceeding 
the length of the tegumen (from base of falx to beginning of 
cingula) which is not the case in Chilades nor indeed in any 
other genus of the subfamily; tapering above the humerulus to 
form a finger-shaped projection of even breadth throughout; 
slightly excurved (in contrast to the straight “gothic” projection 
in Chilades ) and at least 1J4 narrower than the forearm. Valve 
exceedingly small and squat, about half the aedeagus and about 
equal to the falx in length, the first proportion only approached 
in one other species of Plebejinoe ( Hemiargus ramon Dognin) 
and the second unique in the subfamily (but common in other 
Lycaenids); of a peculiar stunted appearance, shaped like an 
elephant, about one and two-fifths as long as broad, thus strik- 
ingly different from the elongated shape of Chilades and all 
Old World members of the subfamily; with a strongly and 
evenly curved processus superior ending in a thickish gradually 
tapering rostellum (about a third of the valve in length), which 
continues the even curve of the whole upper margin and comes 
to rest upon the well-developed, strongly jutting mentum, the 
tip of which may assume a fluted appearance in situ. 
Female: fibula of ostium bursae strongly developed, of the 
Chilades type, with the upper lamella conspicuously long (about 
0.3 mm.). Papillae anales about 0.45 mm. broad and very large 
in relation to the short looking rods (about 0.6). 
Measurements (in mm.): aedeagus 0.9-1, suprazonal portion 
^^The titicaca lobe length is only attained in Chilades by one species ( cleotas , 
pi. 2, CLE 3) in which the whole alar surface is 5.4 times greater and the fore- 
wing 2.5 times longer than in titicaca , while in galba forms (e.g. pi. 2, CON 3) 
