Species composition and seasonal abundance of sandflies (Diptera: Psychodidae: Phlebotominae) in coffee agroecosystems

Abstract

The composition and seasonal occurrence of sandflies were investigated in coffee agroecosystems in the Soconusco region of Chiapas, Mexico. Insect sampling was performed on three plantations located at different altitudes: Finca Guadalupe Zajú [1,000 m above sea level (a.s.l.)], Finca Argovia (613 m a.s.l.) and Teotihuacán del Valle (429 m a.s.l.). Sandflies were sampled monthly from August 2007-July 2008 using three sampling methods: Shannon traps, CDC miniature light traps and Disney traps. Sampling was conducted for 3 h during three consecutive nights, beginning at sunset. A total of 4,387 sandflies were collected during the course of the study: 2,718 individuals in Finca Guadalupe Zajú, 605 in Finca Argovia and 1,064 in Teotihuacán del Valle. The Shannon traps captured 94.3% of the total sandflies, while the CDC light traps and Disney traps captured 4.9% and 0.8%, respectively. More females than males were collected at all sites. While the number of sandflies captured was positively correlated with temperature and relative humidity, a negative correlation was observed between sandfly numbers and rainfall. Five species of sandflies were captured: Lutzomyia cruciata , Lutzomyia texana , Lutzomyia ovallesi , Lutzomyia cratifer / undulata and Brumptomyia sp. Lu. cruciata , constituting 98.8% of the total, was the most abundant species. None of the captured sandflies was infected with Leishmania spp.

Temporal distribution and behaviour of sand flies (Diptera: Psychodidae) in a cutaneous leishmaniasis focus of the Kani Tribe settlements in the Western Ghats, India

“…Picado et al (2010) studied the seasonal pattern of sand fly population in Nepal and they have observed that sand flies were positively associated with temperature and negatively associated with rainfall. In a coffee agroecosystem in Mexico, sand flies of the genus Lutzomyia showed positive correlation with temperature and negative correlation with rainfall (Jeanneth Pérez et al, 2014). However, in the present study P. argentipes, the wet zone hygroscopic species, which absorb moisture from atmospheric air were abundant during monsoon season in these settlements.…”

Effect of trapping methods on the estimation of alpha diversity of a phlebotomine sandfly assemblage in southern Mexico

“…Shannon traps were by far the most efficient sampling method in this tropical forest. Similar results were obtained in several studies in the Mexican southeastern states of Campeche (Rebollar‐Téllez et al ., ; Pech‐May et al ., , ), Yucatan (Rebollar‐Téllez et al ., ), Quintana Roo (Cruz‐Ruiz et al ., ; Sánchez‐García et al ., ; May‐Uc et al ., ) and Chiapas (Pérez et al ., ). It is important to highlight that Shannon traps were primarily developed to collect sylvan mosquitoes using a horse as a bait during an epidemic of jungle yellow fever in Mato Grosso and Rio de Janeiro, Brazil (Shannon, ), and many years later, Pérez et al .…”

Identificação Morfológica De Flebotomíneos Capturados Em Área Urbana

“…Os espécimes capturados foram sacrificados em vapores de éter (9) . Em seguida, os insetos foram armazenados em frascos plásticos contendo álcool 70% e identificados com data e local de captura (10) .…”