VOL. 1. ] Numenius Borealis. 257 
a Ceroplastes received from Silver City, N. M. I fully expected 
that your form would prove identical with this. The beautiful species 
which resembles a 7rypefa belongs to a new genus of Lncyrting. — 
We have the same species in the National Collection from Califor- 
nia. The other species—the small black one—belongs to the genus 
Tebrastichus, and is a parasite not of the scale-insect, but of the 
Aphycus. It is a tremendous genus and the species are not worked 
up.” 
A SUPPOSED ‘NEW FEATHER STRUCTURE: 
_ BY CHARLES mi KEELER. 
In examining a specimen of the Arizona hooded oriole ( dcterus 
cucullatus nelsoni), 1 observed what looked like fine black hairs 
sticking out among the feathers on the head and back of the neck. 
Upon extracting one of them, and examining it under the micro- 
scope it had every appearance of being a true hair. In reality it is 
probably a structure allied to the rictal bristles, but occurring in so 
unusual a place, and lying down upon the feathers instead of stand- 
ing erect it has the appearance of being a different structure. Being 
unable to find any allusion to it I would propose, if it be indeed a new 
structure, that it be termed PseupopiLuM. They are present on 
the backs of the neck and heads of all the orioles I have been able 
to examine, and might prove to be a genericcharacter. They also 
occur in both sexes and in the young, although most numerous in 
the adult male. 
ON NUMENIUS BOREALIS IN CALIFORNIA 
’ BY L. BELDING. 
I think Mumenius borealis published by Mr. Holterhoff in The 
Auk (vol. i, 4, 393), and referred to by Mr. Bryant (Zoe iii, 2, 165), 
was really NV. hudsonicus and Mr. Holterhoff was mistaken in iden- 
tifying his specimen. I was in San Diego not long after he pub- 
lished the note of its occurrence there and asked to see the spect- 
men. He showed mea specimen of WV. hudsonicus instead of JV. 
borealis, and as there is no other known record of its capture in 
~ California, it is scarcely entitled yet to a place among Californian 
_ birds. 
