Vol. xxii] ENTOMOLOGICAL NEWS 65 
is the home of P. hoppingi; from the Cuyamaca Mts., one hun- 
dred miles south ‘came the unique type of P. puncticollis, and 
in the Santa Monica Mts., near the coast, and not more than 
thirty miles distant a single wing cover of a Pleocoma has 
been picked up, showing the presence of the genus in that 
somewhat isolated range. The Sierra Madre Mts. ought then 
by good rights to harbor a species of this remarkable genus, 
but the obscure habits, and the ephemeral existence of the 
perfect insects has enabled them to escape detection up to this 
time. 
In the absence of the male it was not possible to identify 
Mr. Camp’s specimen with certainty, and he was urged to 
keep a sharp lookout for males during or immediately follow- 
ing the next rain. This was done, and on the 15th of Novem- 
ber during a drizzling rain nineteen males were taken in about 
an hour at the same spot in an area not more than one hun- 
dred feet across. The beetles flew slowly and apparently aim- 
lessly, keeping as a rule a foot or two above the ground. Mr. 
Camp was unable to define the extent of the flight, either in 
time or space, but there is little doubt that both were quite lim- 
ited. Unfortunately no special attempt was made to locate the 
females, and it is doubtful if it will now be possible to secure 
any this season. 
A careful study of the males indicates rather close relation- 
ship with fimbriata and puncticollis, but with a sufficiently 
marked and constant deviation from either to warrant a dis- 
tinctive name. The following description and comparative 
notes are therefore offered: 
P, australis n. sp. 
Male—Black, shining, glabrous above, the long hairs of the marginal 
fringe and under surface reddish brown. Antennae and cephalic 
structure very nearly as in fimbriata. Prothorax slightly more than 
twice as wide as long in horizontal projection, sides arcuately con- 
vergent in front, subparallel and feebly or barely perceptibly sinuate 
posteriorly, the hind angles obtuse but well defined and usually slightly 
prominent; disk flattened and obliquely declivous in front, the median 
line broadly vaguely impressed anteriorly and again more narrowly 
