Population dynamics and biting rhythm of the anthropophilic sandfly Lutzomyia cruciata (Diptera: Psychdidae) in Southeast, Mexico

Abstract

Sandflies attracted by human bait were caught in an endemic focus of localized cutaneous leishmaniasis in the state of Campeche, Mexico. Catches were carried out monthly from February 1994 to January 1995 between 18:00 and 22:00 h. Lutzomyia cruciata was the only species caught. The highest population peak of Lu. cruciata was found in March with lesser peaks in February, December 1994, and January 1995. Maximum biting rate of Lu. cruciata was found between 18:00 and 19:00 h. The host-seeking females of Lu. cruciata were directly related to levels of humidity between 88 and 100%. Low and high temperature had a negative effect upon Lu. cruciata activity. The possible role of Lu. cruciata as vector of leishmaniasis in the state of Campeche, Mexico is discussed.

Current Knowledge of Leishmania Vectors in Mexico: How Geographic Distributions of Species Relate to Transmission Areas

“…10,75 A curious variation occurs in the state of Yucatan, where case incidence is low compared with the rest of the Peninsula, although the known reservoirs are present. The proven vector Lu.…”

“…anthophora . 10,16,20,22,24,26,28,30,[43][44][45][46][47][48] For VL, we included the two known vectors, Lu. longipalpis and Lu.…”

“…Vectors and reservoir hosts may differ depending on the geographic region. [8][9][10][11] In the New World, insect vectors known to be responsible for Leishmania transmission to humans belong to the genus Lutzomyia . Although the taxonomy of sand flies has seen major changes in nomenclature after the proposal of Galati,12 throughout this report we use the name Lutzomyia ( sensu ) in a more conservative sense.…”

Eco-Epidemiological and Immunological Features of Localized Cutaneous Leishmaniasis in Southeastern Mexico: Thirty Years of Study

“…The low densities of anthropophilic sand flies species captured near the village and the abundance of Lu. olmeca females (zoophilic species) suggested the sylvatic transmission of Leishmania in the Yucatan peninsula [26,27].…”

Response of cutaneous leishmaniasis (chiclero's ulcer) to treatment with meglumine antimoniate in Southeast Mexico.

“…Garnham, 1962, is the main agent causing CL in this focus; however, L. (Viannia) braziliensis has also been isolated from a few cases. 5 [8][9][10] The clinical picture is characterized by a predominantly single, painless, ulcerated lesion, without lymphangitis or adenopathy, and when located on the ear (the most common presentation) tends to become chronic, causing destruction of the pinna and disfigurement. 1,2,11 An annual incidence rate of 5.08 per 1,000 inhabitants has been reported in the state of Campeche in the Yucatan peninsula.…”