. Entomology for medical officers. Insect pests; Insects as carriers of disease. paxp. Fig. 77—Xenopsylla cheopis. Fio. 78.—Hoplopsyllui anomal'us. Genus Hoplopsyllus, Baker (Fig. 78). This North- American genus is distinguished from Pulex by the presence of a comb of teeth on the hind edge of the pronotum. One species, H. anomalus. Baker, has been found on the rat; it is distinguished by having about nine teeth in its pronotal comb. Genus Ctenocephalus, Kolenati (Fig. 79). The common cat and dog fleas, which are also found on rats and attack man, are the best known species. The teeth of the h


. Entomology for medical officers. Insect pests; Insects as carriers of disease. paxp. Fig. 77—Xenopsylla cheopis. Fio. 78.—Hoplopsyllui anomal'us. Genus Hoplopsyllus, Baker (Fig. 78). This North- American genus is distinguished from Pulex by the presence of a comb of teeth on the hind edge of the pronotum. One species, H. anomalus. Baker, has been found on the rat; it is distinguished by having about nine teeth in its pronotal comb. Genus Ctenocephalus, Kolenati (Fig. 79). The common cat and dog fleas, which are also found on rats and attack man, are the best known species. The teeth of the head- comb in these species are in a longitudinal row on the lower edge of the head. They are cosmopolitan. a^t. anr antgroove. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Alcock, A. (Alfred), 1859-1933. London, Gurney & Jackson


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