15 
come into Mr. Craw’s hands. It is only quite lately that Mr. Craw 
came upon andromelas. Further, if Japan is the native country of the 
San Jose scale, it is to be expected that it has there various natural 
enemies which keep it in check; it is not to be expected that it is found 
everywhere in quantities, any more than our native Diaspinz are with 
us. Indeed, next time an economic entomologist goes to Japan he 
should make it his particular business to look up A. perniciosus, and see 
if there do not exist such natural enemies as are suggested, and whether, 
perhaps, one or more of them can be introduced into this country. It 
has been shown that Diaspidiotus enters the neotropical region, and 
this might be thought to favor the 
supposed Chilian origin of A. perni- TW 
ciosus. Buteven in the West Indies iy ‘\ 
the type becomes largely modified \ is 5 + | 
as to the scale (A. punice, A. diffinis), Ns AY 9 | | 
and greater still is thé divergence of a by 
the Chilian A. latastet—all this not 
at allin the direction of perniciosus. O48 
While it is true that certain of our © ° 
nearctic types do appear in a striking 2 
fashion in the southern parts of South A. Getwlae . from Sohomias 
America, I should be greatly sur- 
prised to receive from thence such a 
scale as A. perniciosus. 
Still less can the supposed Austra- Lo Né 
lian origin be supported, as none of a ie Be 
the native Australian species ‘seem nay i, Y 
to belong to the same subgenus. ao 
Whether Maskell’s “Aontdia” fusca \ 
is introduced Asp. perniciosus, it is 
difficult to say, but it would seem 
probable from what he has written 
on the subject. I am quite con- 
vinced, however, that the supposed 
variety of perniciosus recorded by 
Maskell as on Hucalyptus in Australia is not that insect; the deserip- 
tion reads more like A. forbesi, but it is very likely something else. 
It would seem that our native U.S. species of Diaspidiotus are not 
so very nearly related to those of Europe. An examination of such 
European types as ostrewformis (fig. 3), betule (fig. 10), spurcatus (fig. 
10), ete., shows a group not to be well matched in this country, noticeable 
for its broad, low, median lobes. The difference, indeed, is not very 
great—not so great as between some of our own species—but yet it is 
sufficiently obvious. In our species the median lobes are narrower, and 
usually more inclined to be notched on the outer margin. Thus they 
seem nearer to the Japanese type of perniciosus, ete. 
A. spurcatuc, 
Char. Stal, 1,3. 
a 
Pararific fungus 
Fig. 10.—A spidiotus betule and A. spurcatus 
(original). 
