Report of first expedition to South America, 1913 . obviously hardly seems probable. Theimplication of Phlebotomus must therefore be regarded as wehave already intimated only as a possibility requiring clearcut experimental results for its demonstration. Neverthelessthis insect deserves further study, in connection with whichit must naturally be borne in mind that there are undoubtedlymany other insects in these zones which remain to be dis-covered, e. g., various mosquitoes (Plate xxxiv. Fig. 1). In Townsend: Insec. Inscit. Menstruus, 1913, i, 107. 174 ENTOMOLOGICAL STUDIES any case the carri
Report of first expedition to South America, 1913 . obviously hardly seems probable. Theimplication of Phlebotomus must therefore be regarded as wehave already intimated only as a possibility requiring clearcut experimental results for its demonstration. Neverthelessthis insect deserves further study, in connection with whichit must naturally be borne in mind that there are undoubtedlymany other insects in these zones which remain to be dis-covered, e. g., various mosquitoes (Plate xxxiv. Fig. 1). In Townsend: Insec. Inscit. Menstruus, 1913, i, 107. 174 ENTOMOLOGICAL STUDIES any case the carrier would seem to be a species of nocturnalhabits, for it seems probable that the disease is contractedafter sunset. At the same time as emphasized elsewhere in this report(page 160) while Oroya fever can hardly be other than insect-or tick-borne, the evidence for a similar method of transmis-sion for verruga is far less complete and rests entirely onepidemiological considerations. While these are very sug-gestive, they are by no means
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