PARASITES AND NATURAL ENEMIES. 0(3 
readily and effectively took bold of this introduced scale, is very inter- 
esting, entomologically. and, as suggested at the time, would justify an 
effort to introduce it into southern California. Following up this idea, 
a considerable number of living and healthy specimens were sent, in 
May, 1894. to Prof. C.W. Woodworth, at Berkeley, Cal.. who wrote that 
the insects were received in good condition, and that they had been 
placed upon a well infested tree at Oakland where they could be kept 
under observation. Since that time, in spite of repeated inquiries, we 
have been unable to get any information from Professor Woodworth as 
to the outcome of the experiment. 
Our account of this useful beetle coming to the attention of Mr. J. E. 
Mclntyre, of Lespe, Cal., he urged us to procure for him some living 
specimens. Having already sent material to Mr. Woodworth, we were 
not immediately able to get a supply of the insects for a sending, but 
at this juncture we received from Mr. G. W. Harney, of Marysville, 
Cal.; some beetles for determination, which proved to be Pent ilia 
misella. lie reported that in the mountainous regions of Yuba County 
many apple trees had been very badly infested with A. pemiciosus, and 
that hundreds of these little ladybirds were found preying on the scale. 
The occurrence of this ladybird in California as thus determined, aud 
the fact that it there had the same useful habit, was a most interesting 
discovery. We immediately had Mr. Melntyre's request transferred to 
Mr. Harney for attention. It is more than likely that this little beetle 
is already widely distributed over the Pacific Slope, and it may prove to 
have a continental distribution instead of being restricted to the East. 
as originally supposed. 
In California the common twice-stabbed ladybird Chilocorus birul- 
nerus is very common and active on trees infested with the San Jose 
scale, and is an important aid in keeping the scale in check. This 
species has been reported by Mr. X. TV. Motheral. a year or two after 
having been introduced, to have multiplied in immense numbers and to 
have effected the extermination of the scale in orchards in Tulare 
County, Cal. (Insect Life. Vol. V. p. 53.] In the East, however, this 
ladybird, although common, does not seem to be attracted to this scale. 
Various species of the ladybirds introduced, through the agency of 
Mr. Koebele, from Australia were colonized on trees infested with 
Aspidiotus pemiciosus, and of these Orcuf chalybeus, 0. australasias^ and 
Scymntis lophanthw have since been found preying upon the San Jose 
scale. (Insect Life, Vol. V. pp. 128, 251; Vol. VI, p. 271. The last- 
named species was one of the lot introduced by Mr. Koebele on his first 
Australian trip 1888-89), and was subsequently lost sight of. In L892 
Dr. F. E. Blaisdell described it (Entomological News, Vol. 111. p. 51 as 
a new California species of Scymnus, naming it 8. lophantha from the 
fact of his finding it preying on the San Jose scale which infested the 
limbs of Acacia lophantha near San Diego, Cal. The interesting facts 
thus shown are the establishment of the beetle in California and its 
very useful habit. (Insect Life, Vol. V. p. 127.) 
