The black fly of citrus and other subtropical plants . same year Ritchie (34)states that the entire island[Jamaica] is becoming gener-ally involved. In an un-published report of Novem-ber, 1917, in the bureau files,Harold Morrison gives an ac-count of the black fly inJamaica and Cuba, and forthe first time called attentionto the fact that this insectwas established in the CanalZone and the adjoining partsof the Republic of Panama,having been found by him oncitrus and mango trees inCristobal, Ancon, and Balboain the former place and inColon and Panama in the lat-ter, in August of th
The black fly of citrus and other subtropical plants . same year Ritchie (34)states that the entire island[Jamaica] is becoming gener-ally involved. In an un-published report of Novem-ber, 1917, in the bureau files,Harold Morrison gives an ac-count of the black fly inJamaica and Cuba, and forthe first time called attentionto the fact that this insectwas established in the CanalZone and the adjoining partsof the Republic of Panama,having been found by him oncitrus and mango trees inCristobal, Ancon, and Balboain the former place and inColon and Panama in the lat-ter, in August of that the early part of 1918 M. Mann, of the Bureauof Entomology, found thepest in the vicinity of Santi-ago de Cuba, thereby estab-lishing a new Cuban distribu-tion record. In his explora-tions of the British West THE BLACK FLY OF CITRUS. Indies in 1918, Morrison did not find this pest in Barbados, Grenada,Tobago, Trinidad, or British Guiana. The British entomologists ofthese regions are fully acquainted with this insect and are carefully. Fig. 2.—Distribution of the black fly in the West Indies. watching for it. Therefore it is safe to assume that the black flydoes not occur there at the present time. In his trip to the VirginIslands in 1917, Morrison did not find it at any places visited by him
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