“i 
532 WESTER: POLLINATION EXPERIMENTS WITH 
flowering season of another year. 
Dr. C. L. Marlatt, assistant chief of the Bureau of Entomology 
in considerable numbers in the flowers of the sugar apple. 
ANONAS 
Owing to the advanced season of the year when the investiga- 
tion began, with the consequent scarcity of bloom, extensive ob- 
servations must perforce be suspended until the advent of the 
A small beetle, identified by 
as Colastus truncatus, was then found acting as pollinating agent 
This 
spring (1910) I found the same insect in flowers of the cherimoya 
and sent a specimen of this as well as of another species to the 
Bureau of Entomology for identification. The latter was identi- 
fied by Prof. F. H. Chittenden as “Triphleps, probably in- 
‘IGURE 2. The same flower asin Figure 1, 24 hours later, showing position 
of petals when the pollen is discharged. (One third natural size.) 
sidiosus."’ As this specimen is the only one of this species so far 
discovered, its presence in the flower may have been accidental. 
Another small beetle was found in the flowers of the sugar apple 
and sent to Dr. Marlatt for identification in 1908, who transmitted 
to me the following notes, by Mr. E. A. Schwarz, in regard to this 
species: 
‘The small brownish beetle has for a number of years been 
represented in our collection, but belongs to a family of Coleoptera 
which has been very little studied so far, the gentis of which has 
never been determined. As near as we can say it belongs to the 
group Pharaxonothi. Many years ago the species was found by 
