Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Fleas found on mammals in San Diego County, California.

Abstract

As part of vector-borne diseases surveillance activities, fleas were collected from sylvatic and domestic mammals at 46 different localities throughout San Diego County, California, USA, from April 1991 through December 1992. 24 flea species (12 121 specimens) were collected from 26 of the 32 host taxa (2397 specimens) examined. 10 of these species have not been reported previously in the literature as occurring in San Diego County. A review of unpublished flea surveys of this county yielded 2 additional species, Orchopeas leucopus and Pulex irritans, which were not found during the present survey. 13 of the 26 flea species occurring in San Diego County have been implicated as disease vectors. Oropsylla montana, the primary plague vector in the western USA, comprised 62% of the specimens collected during this survey. Other abundant species collected were Hoplopsyllus anomalus, Orchopeas sexdentatus, Echidnophaga gallinacea, Malareus telchinus, Leptopsylla segnis and Anomiopsyllus nudatus. Well-represented hosts in this survey included Spermophilus beecheyi nudipes, Neotoma fuscipes macrotis, N. lepida, Peromyscus californicus insignis, P. eremicus fraterculus and P. maniculatus gambelii.