Leishmaniasis In The Sudan Republic. 28. Anatomical Studies On Phlebotomus Orientalis Parrot And P. Papatasi Scopoli (Diptera: Psychodidae)1

Abstract

Phlebotomus papatasi and P. orientalis were studied to provide an up to date morphology of sandflies and to compare the morphology of representatives of cutaneous and visceral leishmaniasis vector groups. Descriptions of the external anatomy of the head, mouthparts, thorax, abodomen and genitalia are given. It is concluded that the principal genital claspers of the male are parameres, and appropriate designations of other genital structures are made. The musculature of head and mouthparts are described and mechanics of feeding discussed. The alimentary canal of P. Papatasi and P. orientalis differ significantly. In the latter, the anterior midgut is more voluminous and the cardia less clearly differentiated. These differences may be related to the respective vector roles of these 2 species. In addition to the alimentary canal, descriptions are given of the reproductive and nervous systems. The conditions necessary for leishmaniasis transmission in the laboratory and the possible significance of a full crop to this transmission are discussed.