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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 97, No. 1, 2002, pp. 53-59
Bioline Code: oc02009
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 97, No. 1, 2002, pp. 53-59

 en Species Diversity and Flagellate Infections in the Sand Fly Fauna near Porto Grande, State of Amapá, Brazil (Diptera: Psychodidae. Kinetoplastida: Trypanosomatidae)
Rui A Freitas; Roberto D Naiff & Toby V Barrett

Abstract

Forty-six species of Lutzomyia check for this species in other resources and one species of Brumptomyia check for this species in other resources were identified among 20,008 sand flies collected in central Amapá. L. squamiventris maripaensis check for this species in other resources , L. infraspinosa check for this species in other resources , L. umbratilis check for this species in other resources and L. ubiquitalis check for this species in other resources accounted for 66% of the specimens caught in light traps, and L. umbratilis was the commonest of the 16 species found on tree bases. Seven species of Lutzomyia including L. umbratilis were collected in a plantation of Caribbean pine. Sixty out of 511 female sand flies dissected were positive for flagellates. Among the sand flies from which Leishmania check for this species in other resources was isolated, promastigotes were observed in the salivary glands and foregut of 13 out of 21 females scored as having very heavy infections in the remainder of the gut, reinforcing the idea that salivary gland invasion may be part of the normal life cycle of Leishmania in nature. Salivary gland infections were detected in specimens of L. umbratilis, L. whitmani check for this species in other resources and L. spathotrichia check for this species in other resources . Parasites isolated from L. umbratilis, L. whitmani and also from one specimen of L. dendrophyla containing the remains of a bloodmeal, were compatible with Le. guyanensis by morphology and behaviour in hamsters.

Keywords
Phlebotominae, diversity, distribution, Leishmania, salivary glands, Amapá, Brazil

 
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