ENTOMOLOGY

256 SANITARY ENTOMOLOGY.fl. macmatus Theobald is a common carrier in India and the MalayStates, its relation to this organism being shown by Staunton •.fl. macmipalpis indiensis Theobald a common carrier in NorthwestTerai, India, was proven 0. carner by Stephens and Christophers whodemonstrated zygotes.A. maculipentni8 Meigen is the common malaria carrier in Europe,proven by many autho:rs since Grassi.•A. minimus aconitu8 Donitz and ~ s.ynonyms albiro8tri8 Theobal3,cohccsus Donitz, and formosaensis I ':I:{fuzuki, has been shown to be a· carrierof malaria in Malaysia and India. Staunton proved the carriage ofthis organism by a.lbirostris and Tsuzuki by formosaensis I.A. pseudopwnctipfNllTl,is Theobald (franciscani8 McCracken) wasproven 0. carrier in Panama by Darling (1910) who found zygotes in hisexperimental mosquitoes.A. punctipennis Say was first proven 0. carrier of this organismin Louisiana by King (1916) who found 20 per cent of his experimentalmosquitoes infected, and later Mitzmain (1917) corroborated this byfinding 27 per cent of his experimental mosquitoes infected.A. quadrimacmatus Say was first proven a carrier of this organismin the United States by T4ayer (1900), and later corroborated by Woldertin 1901, and Hirshberg (1904), and finally by I{ing (1916) whofound 23 per cent of his mosquitoes, fed on a certain case, infected.A. rossii Giles was shown by Stephens and Christophers to be a carrierin India, but not commonly.A. sinensis Wiedemann of Southeastern Asia was recorded as 0. carrierby Christophers (1916).A. tarsimacmatus Goeldi was found by Darling (1910) in Panamat~ be infected in 100 per cent of his experiments with this organism.A. theobaldi Giles was shown to be a carrier in India by Stephensand Christophers, who demonstrated zygotes in the experimental mosquitoes.A. turkhudi Liston was shown to be a carrier in India by Stephensand Christophers, who demonstrated zygotes in the experimental mosquitoes.A. umbro8us Theobald was shown to be a carrier in the MalayStates by Staunton, who demonstrated zygotes in the experimental mosquitoes.For American students of aestivo-autumnal or subtertian malaria; thefollowing species are therefore of importance-albimanus, arggrotarsi8,crucians, pseudopunctipennis, pwnctipennis, quadrimacmatus, and tarsimacmatus.For those of our troops who go abroad the other specieslisted above are of greater importance.QUARTAN MALARIA.-This type of .malaria is caused by Plas-