i a can eneteet ena Necro- 
-ppeaaaag While securing this specimem I could plainly 
+ others about the mouse and, in addition to the strid- 
iia athice, wibe heard, as though the various 
t were engaged in combat, the mandibles of one 
on the chitinous parts of another ; and this is what 
i to be taking place when I lighted my candle. 
a nee cet car ed, cna 
ir of these were fighting, in pairs, close to the carcass. 
T purpose was, evidently, to keep each other from reach- 
ig the ty ofthe owe, a to do this they would seize 
h other with their legs, and apparently their mandibles 
0, and roll about in a most Inudicrous manner, all the time 
ping up their stridulating sounds. At intervals they would 
Te their holds upon each other and return to the carcass, 
“only to renew the combat a little later. They did not appear 
1 ith ih ech ea wt ew 
of a couple of feet or so. However, one took flight after a 
time, possibly owing to the light. 
sah BIE Soe Gadliectectating counts were pro- 
* pe Tice gh ef and 
reat ree remteced 
_ bya movement of the abdomen, apparently causing the upper 
of one or more of the abdominal segments to rub 
I gtlact the elytra.* 
as 
+, 
-__ Tcollected four of the beetles about the mouse—all that I 
ould locate—at 8.20 P.a., and left the carcass for nearly an 
hour. At 9.10 I again visited the place with my candle, and 
rns eu Prams at Sfat wo find the mouse gone from 
spot where it had lain. I soon located it, however, at a 
; of several inches from its former resting place, and 
| ee Decal vain Tcotectea about it. 
7 My observations for the night closed at 9.50, when I again 
J Visited the mouse and secured a single beetle. 
©Since making these sotes, in 1906, the writer has noticed a single reference relative 
| to stridulation in Mecrophorns, via., Third Report of the State Entomologist of Missouri, 
_ —& 14, where Dr. Riley, in speaking of the stridulating organs of various Coleoptera, says: 
_ “Im the burying beetles (Necrophorida) these rasps are situated on the fifth abdominal 
ee ert the elytra.” 
