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ENTOMOLOGICAL SOCIETY 
of the bark and debris which was near them and mailed to 
Washington. But unfortunately no observations were made 
regarding their natural food. The specimens were placed in 
a breeding- jar with part of the root of a small yucca cultivated 
in the grounds of the Department of Agriculture, and attempts 
were made to feed them, but without success. One by one 
they died till but one, the 'largest, was left. This one finally 
died in July, 1905, having been alive, in captivity, and without 
feeding, for twenty-six months, during which time probably 
two skins were cast, though no record was kept. The heads 
of the cast skins could not be found. 
The larvae are extremely slow in their movements, lying 
with the fringe surrounding their bodies closely appressed to 
the uneven surface of whatever they may be placed on, the 
tail extended, but if disturbed the head is slightly raised, and 
the tail bent forward over the back. This is the position in 
which most of them died. 
FIG. 11. Undetermined coleopterous larva (enlarged 
about 5 \ diameters). 
Slides were made from some of the dead specimens and 
the accompanying photomicrographs were taken from them. 
No one has, as yet, satisfactorily placed the insect, but to 
all appearances it is coleopterous, as there are serious objections 
to its being placed in any other Order. The first opinion of 
several authorities has referred it to the Endomychidae, but 
this has always been withdrawn on further examination and 
generally no opinion given in its place. In want of a more 
satisfactory location Mr. Schwarz suggests that it may pos- 
sibly represent an unknown genus in the subfamily Phengo- 
dinae of the Lampyridae. 
