122 
Psyche 
[June 
del Gato, some 50 miles to the east on the same south coast mountain 
range, where it was also collected by Darlington (3-7 July 1936, 
c. 3,000 ft, 3 specimens, MCZ). 
Canthochilum hispidum hispidum Chapin, 1935 
A fine series of 98 specimens was collected on Cerro Dona Juana, 
Toro Negro State Forest, Puerto Rico, on 28 December 1966 by 
Mr. S. Peck of Harvard University at 900 m (7 specimens) and 
1,000 m (91) elevation, using rotten liver as bait (MCZ). Although 
the present author set excrement traps in this area, he did not get 
C. hispidum here (getting it about 7 mi to the west on Cerro de 
Punta) . The present series shows sufficient variation not to be clearly 
ascribable either to the subspecies hispidwn Chapin or serropunctae 
Matthews, and indicates that we are probably dealing with a cline 
running from east to west on the Cordillera Central at altitudes of 
about 3-4,000 ft. Consequently, it is here proposed to eliminate the 
subspecies serropunctae Matthews as a formal category and recognize 
only two subspecies: hispidum Chapin, 1935, showing clinal variation 
on the Cordillera Central, and iunceanum Matthews, 1965, occu- 
pying isolated mountain ranges in the east (Sierra de Cayey and 
Sierra de Luquillo). 
The fact that these specimens came to liver bait supports previous 
indications (Matthews, 1965:458) that this species is partly 
necrophagous. 
The total number of described species of Canthochilum now stands 
at 15, plus one unnamed species on Hispaniola and one subspecies 
on Puerto Rico, as follows. 
Cuba.- Eight species. Described by Harold, 1868: gundlachi and 
histeroides; by Zayas and Matthews, 1966: anacaona, baracutey } 
cemi , guayca, pijirigua, and tureyra. 
Hispaniola.- Three species. Described herein : darlingtoni and 
cihoney , plus one unnamed. 
Puerto Rico.- Five species. Described by Chapin, 1934, 1935: 
andyi , hispidum , and oakleyi; by Matthews, 1965, 1966: horinquensis , 
taino , and the subspecies hispidum iunceanum and h. serropunctae J 
of which only the former is now considered valid. 
The total known taxa of Scarabaeinae from Hispaniola has now 
been raised from the previous three genera and six species (Mat- 
thews, 1966) to four genera and nine species (one unnamed) by the 
new recordings of Canthochilum , possibly ten species if Onthophagus 
albicornis and capitatus prove to be specifically distinct (see above). 
