Polymorphism, inter-population and inter-specific variation in Nyssomyia intermedia (Lutz & Neiva) and Nyssomyia neivai (Pinto) (Diptera, Psychodidae, Phlebotominae)

Abstract

ABSTRACT. Polymorphism, inter-population and inter-specific variation in Nyssomyia intermedia (Lutz & Neiva) and Nyssomyia neivai (Pinto) (Diptera, Psychodidae, Phlebotominae). Nyssomyia intermedia (Lutz & Neiva) and Nyssomyia neivai (Pinto) are morphologically very close and both present great variation in some structures. The objective of this study is a description of the variation among the females of these species in populations from the States of Minas Gerais and São Paulo. The morphological structures studied were the number of horizontal teeth in the cibarium and the number of rings and the shape of the terminal knob of the spermathecae. The spermatheca rings are significantly more numerous in N. intermedia than in N. neivai and the simple shape of the terminal knob predominated in both species. Regarding the cibarium, eight to eleven teeth have been found in both species, with up to twelve teeth in the latter. The number of horizontal teeth and the shape of the terminal knob of the spermathecae were variable throughout the populations of both species and all structures were polymorphic in the populations studied.

Comparative study of the phlebotomine sand fly species (Diptera: Psychodidae: Phlebotominae) of the genera Nyssomyia Barretto, 1962, Bichromomyia Artemiev, 1991, and Migonemyia Galati, 1995, vectors of American cutaneous leishmaniasis in Brazil

“…neivai was similar while the number of rings in most of the specimens of the first species was higher compared to the second group. The findings in our study are in agreement with those of Marcondes (1996) and Andrade Filho et al (2006), who demonstrated that the number of spermathecae rings is higher in Ny. intermedia than in Ny.…”

“…neivai and Ny. intermedia populations conducted by Andrade Filho et al (2006) showed, in corroboration with our findings, that the number of teeth in the cibarium varies among different populations so that it cannot be considered an appropriate feature in determining species discrimination.…”

“…neivai. The differences in sizes of the common duct were highlighted by Marcondes (1996) and Andrade Filho et al (2006) as an important feature in distinguishing Ny. intermedia from Ny.…”

Nyssomyia intermedia (Lutz & Neiva) and Nyssomyia neivai (Pinto) (Diptera, Psychodidae, Phlebotominae) in a sympatric area: seasonal and nocturnal hourly rhythm in black and white modified Shannon traps

“…neivai (Pinto, 1926) are morphologically very similar (Andrade-Filho et al 2006), so much so that Ny. neivai has been proposed as a junior synonym of Ny.…”

Ocorrência de Nyssomyia intermedia (Lutz & Neiva) (Diptera: Psychodidae) e fauna associada, no Paraná

“…Por essa razão, não raro, uma determinada espécie, após estudos mais detalhados, distingue-se em mais de um táxon (Marcondes 1998). Exemplos dessa natureza são os complexos identifi cados de Lutzomyia longipalpis (Lutz & Neiva) (Lanzaro et al 1993), Nyssomyia whitmani (Antunes & Coutinho) (Ready et al 1997) e Nyssomyia intermedia (Lutz & Neiva) (Marcondes 1996, 1997, Andrade-Filho et al 2006. Marcondes (1996Marcondes ( , 1997 As coletas de fl ebotomíneos foram realizadas em todas as localidades com armadilhas elétricas luminosas do tipo Falcão (modifi cada), entre as 18:00h e 6:00h, distribuídas em varanda de residência, galinheiro, chiqueiro, bananal, mata, túnel, toca de tatu, gruta e fendas de rocha, e apenas em Morretes, Guaraqueçaba, Paranaguá e Matinhos, com armadilha de Shannon, também com atrativo luminoso, instalada em mata das18:00h às 21:00h.…”