50 General Notes. (January, 
rocephalus), at the same time stating that it is the one mentioned by 
Awdubon as the female of the Anna, he must have made an error in 
measuring it, especially as he gives the height correctly. His specimen, 
by the way, is mentioned by Baird and others as a “male with forehead 
covered with yellow pollen.” This mistake may arise from its having a 
red metallic patch on the throat, not mentioned in their descriptions of 
the female, but I can state from seeing hundreds of females in spring, 
that they Aave this patch as well as young males in fall. The female 
Nootka hummer has it also, as late authors state, though Nuttall was 
doubtful about it. 
I may add that the only other small bird yet building here is the blue- 
bird (Sialia Mexicana), and this only inside of buildings or hollow trees. 
— J. G. Coorrer, Haywood, Alameda County, Cal. - 
INTELLIGENCE IN THE Hawk Mors. — While watching the sudden 
unfolding of the flowers of the Gnothera Lamarkiana, we observed that 
the hawk moths never visited the same flowers twice, even when fright- 
ened away by some motion made by us. On returning, they would go 
only to those flowers that had opened during their absence, or that had 
not been visited before their flight. — J. M. MILLIGAN. 
Perroration or Orance Sxins By Motus. — The proboscis of 
Australian moths of the genus Ophideres is said to be so stiff, and even 
barbed, that it is capable of perforating the most resisting envelopes. 
The moths thus perforate oranges in order to feed upon their juices. M. 
Kiinckel has examined the specimens forwarded to him by M. Thozet, 
a French botanist, and says, “ It is incorrect to call the proboscis rigid, 
as it curls up in the usual way; but instead of a soft terminal portion, 
it has a hard one. The two adpressed maxillæ terminate in a sharp tri- 
angular point, furnished with two barbs. They then swell out and pre- 
sent on the lower surface three parts of the thread of a screw, while their 
sides on the upper surface are covered with short spines springing from a 
depression with sharp, hard sides.- These spines are to tear the cells and 
the pulp of the oranges, as a rasp opens.those of beet root, to extract the 
sugar. The upper portion of the proboscis is covered from below and 
on the sides with fine serrated strie disposed in a half helix, which give 
it the qualities of a file. These striæ are from time to time interrupted 
by small non-resisting spines, which serve as tactile organs. The orifice 
of the canal by which the liquids ascend is situated on the lower face, be- 
low the first thread of the screw. 
“Not content with examining Ophideres Fullonica, I studied 0. 
salaminia, O. materna, and O. imperator, which all had auger-like pro- 
s. The structure of these maxilla affords a generic character of 
great value; it moreover establishes a closer relation between the lepi- 
dopters, the hemipters, and certain dipters which have maxille adap 
to pierce tissues.” — Monthly Microscopical Journal, London. 
Tae EUROPEAN TREE SPARROW IN THE Unrrep States. — It will 
