1984] 
Miller — Earwigs of Channel Islands 
49 
Table 1. Summary of earwig distribution on the California Channel Islands. 
Island 
Euborellia 
annulipes 
Forficula 
auricularia 
San Miguel 
Santa Rosa 
X 
X 
Santa Cruz 
X 
Anacapa 
Santa Catalina 
X 
X 
San Nicolas 
X 
San Clemente 
X 
X 
Santa Barbara 
X 
tions, probably near the sites of initial introduction by man. F. 
auricularia, however, has apparently become established on six 
islands, mostly during the 1970s. It has not yet been recorded from 
San Miguel and Anacapa islands, but should be expected there. The 
agencies which administer the islands should attempt to discourage 
the rapid expansion of F. auricularia, by preventing additional 
introductions and eradicating existing populations when possible. 
Appendix 
The following are significant additions to Langston and Powell 
(1975) and Langston and Miller (1977): Following Brindle (1971) 
and Steinmann (1975), the proper name of Spongophora apiceden- 
tata Caudell is Vostox apicedentatus (Caudell). Euborellia femoralis 
(Dohrn), a new California record, was reported from Red Hill Ma- 
rina, Calipatria, Imperial County, by Steinmann (1981). Forficula 
auricularia has been established in the San Diego area, new south- 
ern record in California, since at least the mid 1970s (specimens in 
SDNHM). 
Acknowledgements 
I thank the National Park Service, U.S. Navy, Santa Cruz Island 
Co., Vail and Vickers Co., and Santa Catalina Island Conservancy 
for permission to collect on the islands; those and the Catalina 
Island Marine Institute, Santa Barbara Museum of Natural His- 
tory, Southern California Academy of Sciences, TRW, and the 
