RESUMO
Klossnema viguerasi n. sp. (Nematoda: Oxyuridomorpha: Hystrignathidae) is described from the passalid beetle Antillanax pertyi (Kaup, 1869), endemic to Cuba. The females of K. viguerasi n. sp. are morphologically similar but slightly longer than K. repentina Cordeiro Artigas, 1983 (1.143 mm vs. 1.000 mm). Both species differ in that K. viguerasi n. sp. has a longer procorpus (139 µm vs. 110 µm), isthmus (39 µm vs. 24 µm), and tail length (28 µm vs. 21 µm). The distance from the vulva to the anterior end is also longer in the new species (0.748 mm vs. 0.650 mm). The males of K. viguerasi n. sp. are larger than K. repentina (0.980 mm vs. 0.800 mm), but their isthmus is shorter (38 µm vs. 48 µm). New features of the cephalic end of both sexes, and copulatory papillae pattern of the males were observed by SEM and the generic diagnosis is emended in order to include such features. The phylogeny of K. viguerasi n. sp. is inferred by the analysis of the D2-D3 domains of the 28S rDNA and the 18S rDNA. This constitutes the first record of the genus Klossnema for the Cuban archipelago and the West Indies.
Assuntos
Besouros , Nematoides , Oxyurida , Animais , Cuba , Feminino , Masculino , FilogeniaRESUMO
Lepidonema magnum Morffe García, 2010 (Nematoda: Oxyuridomorpha: Hystrignathidae) is redescribed and illustrated with the aid of SEM. New features of the cephalic end and genital tract of the females were observed. New locality records are given. The phylogenetic position of the species is inferred on the basis of the D2-D3 segment of the 28S LSU rDNA and 18S SSU rDNA. L. magnum forms a monophyletic clade formed by other hystrignathids: Coynema poeyi (Coy, García Álvarez, 1993), two species of Longior Travassos Kloss, 1958 and two Hystrignathus Leidy, 1850.
Assuntos
Besouros , Nematoides , Animais , Cuba , DNA Ribossômico , Feminino , FilogeniaRESUMO
Coynema poeyi (Coy, García Álvarez, 1993) (Oxyuridomorpha: Hystrignathidae) is redescribed and illustrated with the aid of SEM. New features of the cephalic end of both sexes and copulatory papillae pattern of the males were observed and the generic diagnosis is emended in order to include such features. New locality records are given. The phylogenetic position of the species is inferred on the basis of the D2-D3 segment of the LSU rDNA. C. poeyi is located basal in a monophyletic clade formed by other hystrignathids: two species of Longior Travassos Kloss, 1958 and Hystrignathus sp.
Assuntos
Besouros , Filogenia , Animais , Cuba , Feminino , Masculino , OxyuridaRESUMO
The status of Longior alius García Coy, 1994 (Nematoda: Thelastomatoidea: Hystrignathidae) is discussed on the basis of new material obtained from its type host Antillanax pertyi (Kaup, 1869) (Coleoptera: Passalidae) from Limonar, Guantánamo province, Cuba, near the type locality. Based on morphological and molecular studies L. alius is considered synonymous with L. longior Morffe García, 2011. L. longior and L. similis Morffe, García Ventosa, 2009 are redescribed and illustrated with the aid of SEM. New locality records for both species are given. The conspecificity of females and males of both species is supported by comparison of the D2-D3 segment of the 28S LSU rDNA. The inter-specific differences and phylogenetic position of L. longior and L. similis are discussed.