24 
Psyche 
[March 
Hemiargus filenus Poey 
Egg 
Pale dull glaucous-blue. Greatest diameter .4 mm. Height 
.15 mm. Top surface noticeably concave. Surface with mac- 
roscopic polygons formed by a greatly raised reticulation. 
Polygonal areas further divided into microscopic polygons 
raised but little above the general surface. 
First Instar 
Head height .1 mm. ; head width .15 mm. Head smooth 
shiny black. Usually retracted. Length of body .9 mm. 
Clear light green. Long tapering colorless hairs on body. 
Para-dorsal and substigmatal rows longest. Hairs usually 
directed posteriorly. 
Eggs laid on Mimosa pudica May 29, 31, and June 1 
emerged June 3, 4, and 5. The duration of the egg stage 
was usually five days. Eggs were laid most frequently at 
the base of a bud. As with N. iole the female made many 
false starts. An egg would be laid every ten to fifteen trials. 
Pyrgus syrichtus Fabr. 
Cream color. 
First Instar 
Head height .4 mm. ; head width .42 mm. Smooth shiny 
piceous, with few rather long whitish hairs. Length of body 
1.5 mm. Body bears many colorless to fuscous hairs. Those 
on the prothoracic and anal segments are the longest and of 
the usual tapering type. Hairs forming the para-dorsal, 
lateral, and stigmatal lines are branched (Fig. 4). Those 
below the stigmatal line are of the usual tapering type. Body 
cream color. 
Eggs laid May 22 emerged five days later May 27. Al- 
though Sida is listed as the food plant of these larvae, sev- 
eral local species of Sida were refused by the larvae which 
eventually died. 
Cabares potrillo (Lucas) 
Egg 
Dark pea green. Greatest diameter .8 mm. Height .78 
mm. Eleven prominent longitudinal ribs. These connected 
