[June 1883 BULLETIN BROOKLYN ENTOM. SOC. VOL. VI. 17 
treated with hot water or heat to destroy all hving creatures that may be 
contained therein, for there may be either small Staphviinzdae etc. destroying 
your larvee, or there may be some other larva especially in the wood, 
which will develop while the one you confined in it after having made a 
drawing and description of it, will die and you may think the developed 
insect came from your larva. 
It is somewhat more difficult to raise the larvee from the imagines, 
The best plan is to take species found in copulation, and place them in 
cages and feed as in Cicindele. 
Cages with wire screen to bottom will not answer the purpose, as the young 
larvae will crawl through, there must also be earth in the cage 
to protect the young larvee against attacks from brothers and parents. A 
few days after copulation the males ought to be removed and a few days 
later the females also, and put into another cage as | think they kill their 
own children thus differing very much from dungbeetles and Mecrophori 
which take great care of their offspring. 
By using very black earth for the cages, the eggs and young larvee 
may be more easily detected. As a matter of course as soon as the larvee 
are a few days old, place each one in a smaller separate box and proceed 
as above. 
Clusters of eggs found under stones, boards and leaves may be also 
taken home and placed in boxes. 
Necrophorus and Silpha larvae are perhaps raised the easiest of all. 
Take a soap-box half filled with loose moist earth, place therein some poor 
meat and a dozen specimens of a species Mecrophorus or of Silpha cover 
the box with fine wire screen and place it out of the way till the 
worst smell is over, Keep itin the dark to prevent flies from depositing their 
eggs thereon — after two weeks you will have plenty of larvze shortly after 
plenty of pupze and in two weeks later imagines, if some parasite, does 
not devour the pupz before, On a single pupa I often found as many as 
ten very lively running parasites of considerable size, always hiding beneath 
the antennee and legs of the pupe. Inspect the pupz frequently and dis- 
covering these parasites, take a very fine hair-brush, dip the point into 
benzine and touch the parasite, which becomes somewhat dizzy and is 
easily removed. Pupze too much infested are put in Alcohol and kept as 
specimens for the biological collection. 
In the case of Necrophorus you may keep any quantity of larvee in the 
same box ; they will live peacefully together provided they have enough to 
eat, which they do moderately ; with the S7~ha larva the case lies al- 
