52 
THE SAN JOSE SCALE. 
for. It was afterwards learned, however, that the orchard became 
reinfested and also that the partial extermination of the scale in this 
instance was in a measure seemingly due to a fungous disease. 
Mr. Koeble refers to the fact that in the case of infested trees on the 
island of Kauai the scales were nearly all punctured by a minute para- 
site which he, thought might be this species. 
PREDACEOUS INSECT ENEMIES. 
Of predaceous insects, perhaps the most interesting is the little coc- 
cinellid Pentilia misella, which in both the larval and beetle state was 
found by Mr. Schwarz in great numbers at Charlottesville feeding upon 
, *' "N 
0\ 
Jb 
C 
Fig. 8.— Pentilia (Smilia) misclla: a, beetle; b, larva; c, pupa; d, blossom end of pear, showing 
scales with larvse and pupas of Pentilia feeding on them, and pupae of Tentilia attached within the 
calyx— all greatly enlarged. (Original.) 
the scale, and which also occurs in other Eastern localities. The present 
season we found its larvae on twigs from Chestertown, Md., collected late 
in November. The beetles seem to prefer the fall-grown female scales, 
and were frequently observed standing astride a scale, almost on end, 
pushing their heads under the margin of the protecting scale to get at 
the soft yellow insect beneath. The larvae of the beetles seem to feed 
more abundantly on the young scales. Their mode of attacking the 
older scales was not observed. Xo eggs of this very useful coccinellid 
were found, but a favorite place of pupation was discovered to be within 
the calyx of the pears. This cavity is often literally filled with a mixture 
of young and old scale insects, and frequently contained full-grown 
Pentilia larvae, their pupae, and also freshly issued beetles. (Sec fig. 8.) 
The fact that this beetle, which is essentially an Eastern species, so 
