4 
Psyche 
[February 
‘‘I saw your note in Science this evening with regard to 
Muscina pascuorum and hasten to state that in Ithaca we have 
just discovered a new Muscina. Tuesday of this week I caught a 
fly in my laboratory which looked like M. stabulans but with 
black legs. As I was busy with other things I thought no more 
about it until the next day when Mr. Raymond C. Shannon 
came in with a fly which he asked me to look at. He realized 
that it was not one of the two species of Muscinas which were 
prevalent here. Mr. Shannon has been taking this species in 
Ithaca now for several days and he told me that there is one 
(either in his own or in the University collection, I have for- 
gotten which) which was caught here in September. We tried 
to identify it and reached the conclusion that it was either 
pabulorum or pascuorum.” 
Later Mr. Shannon wrote: ‘‘My captures of Muscina pas- 
cuorum consist of nine females and one male, collected from 
September 5 to November 22. “On December 16 Jos. C. Ouellet, 
C. S. V. of Outremont, Quebec, writes: — “I have just received 
from Father Ducharme of Rigaud College, a specimen which 
closely resembles Muscina pascuorum. I am mailing you the 
specimen today.’’ The specimen was received on the 20th and 
proved to be a male of that species and the most northern record. 
Over 450 specimens have come under my observation and 
of these only ten were males. A natural inference is, that this is 
probably due to their having been discovered so late in the 
season, and that it is usually the female that comes into the 
houses to hibernate. On the other hand it was not until Novem- 
ber 7 that I saw a male, after over 90 specimens had been seen, 
and Dr. Wheeler informs me that the specimens he collected in 
August were taken on flowers. 
I can find very little in literature pertaining to the habits of 
this species. Schiner (Fauna Austriaca, I, 597) says that “Bremi 
found the larvjae in Agaricus citrinus.” On making some inquiry 
regarding the fungi found in the vicinity of Boston, Miss Jennie 
F. Conant, Secretary of the Boston Mycologial Club, informed 
me that this is the same as Amanita citrina, common to both 
