A mass collection of Triatoma ryckmani (Hemiptera: Reduviidae) from Stenocereus eichlamii (Cactaceae) in the semiarid region of Guatemala

摘要: A population of 216 specimens Stenocereus eichlamii (Cactaceae, Subfamily Cereoideae) was surveyed for Triatoma ryckmani (vector Chagas disease) in a one hectare plot semiarid habitat Guatemala. Out 44 plants that had dead and dry sections, 24 total 103 T. . In comparison with other areas Guatemala, is well established the ecosystem (Infestation index 54.5, density = 2.3 crowding 4.3). The insects were mainly found (52.4%) portions S. 2.0 to 3.2 m above ground (X² 26.0, P< 0.00001), followed by cactus sections between 5.0 (35.9%). They less frequent 0.2 ground. considerable proportion (75.7%) no aparent blood their digestive systems. To determine presence flagellates, 43 bugs dissected, but none found. This first report on dynamics this habitat.