29 
It would be a good idea to gather the first-named species and colonize 
it somewhere by itself. With me the species has bred all along upon 
the Pernicious Scale, larvae being observed all winter and up to April, 
when 1 left for Oregon. At present the larvae are still found upon the 
same trees, but how many of the beetles are left I can not well say. 
The insect should be introduced upon Aspidiotus aurantii, upon which, 
without doubt, they will feed to some extent, at least as well as they 
do upon A. nerii in Australia. 
Rhizobius satellus Blackb. 
I was greatly disappointed in not meeting with this insect upon the 
Red Scale in any of the places where colonies had been liberated. The 
beetles were sent to Los Angeles by the thousands, as well as also to 
Mr. Lelong, and they may yet appear at some of the numerous locali- 
ties where they were liberated. This is the most abundant Ooccinellid 
preying upon the Red Scale in Australia, and since it is a continuous 
breeder, it should not take long to become numerous with us. I have 
attempted ever since my return to obtain specimens from Australia to 
introduce upon this scale, but so far have not succeeded. 
Thalpochares eocciphaga Mcyrick. 
I have not learned whether this insect has been established upon 
Lecanium with us. The Hon. Ell wood Cooper liberated a very large 
number, and they should have established themselves at his place, if 
anywhere, yet Mr. Cooper has never seen any trace of them. At pres- 
ent there is very slight chance of this moth breeding at this place, 
since the scales are disappearing rapidly before the vast army of Rhi- 
zobius. At Hay wards, Alameda County, where also a large number of 
the moths were liberated, both by the State board and by myself, and 
where the conditions are very favorable, I am also unable to find any 
trace of them, although they may be present. 
ON THE INJURIOUS AND OTHER LOCUSTS OF NEW MEXICO AND 
ARIZONA. 
By C. H. Tyler Townsend, Kingston, Jamaica. 
A lot of locusts ( Acridiidre) has recently been determined for me by 
Prof. Lawrence Bruner, which enables me to present the following notes 
on thirty-five species. These were collected by the writer in ^New 
Mexico and Arizona, mostly during the summer of 18'92, except five 
species from the collection of Hon. W. G. Rich, ex- secretary of this 
Territory. A few mesa forms occur among the following species, but 
most of the number are more or less injurious to cultivated crops, 
especially cereals and forage plants; or to native grasses, which latter 
