Triatoma nitida check for this species in other resources - Chagas disease - geographic distribution - altitudinal distribution - morphometrics - Guatemala"/>
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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 98, No. 1, 2003, pp. 37-43
Bioline Code: oc03036
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 98, No. 1, 2003, pp. 37-43

 en Geographic Distribution and Morphometric Differentiation of Triatoma nitida check for this species in other resources Usinger 1939 (Hemiptera: Reduviidae: Triatominae) in Guatemala
Carlota Monroy; Dulce María Bustamante; Antonieta Rodas; Regina Rosales; Mildred Mejía & Yuichiro Tabaru

Abstract

Triatoma nitida check for this species in other resources was found in 14 (0.4%) out of 3,726 houses located in six departments across Guatemala, which were surveyed from 1994 to 1998 by the man-hour collection method. Compared to previous information, the distribution of T. nitida in Guatemala has increased from five to nine departments; the species is present in mild climates at altitudes from 960 to 1,500 m. Fourteen percent of the intradomestic T. nitida were infected with Trypanosoma cruzi check for this species in other resources . The species was often found in conjunction with other triatomines (T. dimidiata and Rhodnius prolixus check for this species in other resources ). The domestic and peridomestic presence of T. nitida in Guatemala was rare, but occasionally this species was colonizing human-made constructions. T. nitida appears to have a low importance as Chagas disease vector in Guatemala, as indicated by its scarce presence in the domestic habitats and defecation patterns. However, it clearly has potential to become a Chagas vector so we recommend an on-going study of the intradomestic presence of T. nitida following the control programs in Guatemala.

Morphometric analysis of 47 T. nitida males from three localities showed quantitative differences between the populations, which indicates that geographic distance is an important factor in the structuring of T. nitida populations.

Keywords
Triatoma nitida check for this species in other resources - Chagas disease - geographic distribution - altitudinal distribution - morphometrics - Guatemala

 
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