Hagen. ] 62 [October 23, 
A. divinatorius is here, as there, equally common. Cl. pulsatoria is 
probably not of any marked influence. But I believe that the young 
of Psocus domesticus sometimes do the harm attributed to A. divina- 
torius. At any rate dead imagos are not rarely found in boxes 
believed to be infested with A. divinatorius, therefore the latter is 
sometimes erroneously considered to be the previous stage of Ps. 
domesticus. 
It would be rather interesting to compare the insect pests of other 
parts of the world with those observed here and in Europe. But the 
few scattered observations do not allow any comparison. The small 
house ants and white ants, where they exist, destroy everything. 
Fortunately I have no personal experience about them. 
Concerning the best prevention against insect pests I may repeat 
again, I believe that having well closing boxes, and never putting 
additions into the collection before they are safe, are the only things 
to be done in a well kept collection. All other recommended rem- 
edies are only a poor help for bad boxes, and not needed if they are 
well made, and kept in good repair. ; 
O. flavifrontella is described first by Schiffermueller, who says that 
the larva is unknown. Fabricius described it after the former type, 
and adds only in the second edition, “ living in insect collections and 
feathers in Austria.” J’. vestianella L., which name was first accepted 
by Harris for the American moth, is an Oecophora, hardly determin- 
able, as Prof. Zeller says. 
Mr. Henry Edwards said that Anthrenus museorum, A. 
varius and Psocus were not common in California, but that 
there the real trouble in collections is with Acari. He had 
also found ants very troublesome in collections of fresh speci- 
mens at Panama and in New York. 
Mr. E. P. Austin remarked that he had seen Tribolium 
common in one lot of insects. He had noticed that in Otio- 
rhynchus as in the museum pests mentioned by Dr. Hagen, 
species common in Europe were rare here and vice versa. 
Thus O. ligneus1is common here, O. sulcatus rarer, while in 
Europe the opposite is true. 
1 Since the above was printed some doubt has been thrown on this determina- 
HON, S| Awl Be 3 
