12 
It is of interest to isk how far south Diaspidiotus goes in the Eastern 
Hemisphere. Mr. Green sends me a species found on Cycas in Ceylon, 
which he cajls A. cyanophylli. But Signoret's cyanophylli belongs to 
Aspidiotus s. str., or at any rate is very close thereto, while Mr. ( ireen's 
Ceylon species is a modified type of Diaspidiotus, largely comparable to 
the neotropical Hemiberlesia. I give a figure of theCeylonese so-called 
cyanophylli (fig. 7) It may be named A. greenii. 
Attention must also be directed to certain types which seem inter- 
mediate, more or less, between Aspidiotus s. str. and Diaspidiotus, 
while at the same time they recall 
\j/ 
A. Cyioi 
/ 
a 
\ 
rc~ t=fiw oji. 
Chrysomphalus. Such are A. trilo- 
bitiformis from Ceylon (fig. 8) and 
an apparently new species from 
I'ii -land, which Mr.Newstead has 
taken for A, hederm (fig. 9). No 
one could take trilobitiformis for 
a Diaspidiotus, but the so-called 
hederw looks more like one at first 
sight. It maybesaidthataSvU/;/- 
dioius s. str. is to Parlatoria, etc., 
so is Diaspidiotus to Mytilaspis 
and Ghionaspis. The parallel is 
not exact, but it is approximate. 
Hemiberlesia ( Ikll. 
This name replaces the preoccu- 
pied Aspidites Berl. and Leon., but 
with a very different significance. 
The type is A, rapax; and perni- 
dosus, tenebricasus, smilacis, and 
minimus, referred to Aspidites by 
Berlese and Leonardi, all belong 
elsewhere — the first to Diaspidiotus, the next two to Chrysomphalus, 
and the last to Aspidiotus 8. str. This subgenus really represents a 
southern modification of Diaspidiotus, with a convex scale and large 
median lobes, the others being suppressed. It appears to be exclu- 
sively American, and belongs to the tropical and lower austral regions, 
except that one species (.1. convexus) occurs the upper So nor an, and 
another (A. irtmi) in the corresponding zone in Illinois. 
Fig. 9.— Aspidiotus "Kedera" (after New-stead). 
Chrysomphalus Ashm. 
This subgenus must be credited to Ashmead, as at the time of publi 
cation Riley expressly disclaimed responsibility, though he had written 
the name first in his MSS. The first definition was given by Berlese 
and Leonardi; the type is A. flcus. In this subgenus the characters 
of the female are somewhat as in Aspidiotus s. str., but the chitinous 
