Uma nova espécie de Mononchus (Nematoda, Mononchidae)

Updated taxonomy and new insights into the evolutionary relationships of the genus Sporonchulus Cobb, 1917 (Nematoda, Mononchida) after the study of two Vietnamese species

“…Especially relevant is the variation observed in buccal cavity length (18-34 µm), an unusually wide range in mononchid species. Actually, Vietnamese specimens display 26-28 µm long buccal cavity, totally comparable or with appreciably overlapping ranges to those reported for Afrotropical (Mulvey and Jensen 1967;Chaves and Geraert 1977) and Indomalayan (Mulvey 1963;Mohandas and Prabhoo 1979;Jairajpuri and Khan 1982;Loof 2006) populations, but they differ from some South American specimens (Carvalho 1951;Chaves 1990), 25-33 vs 18-23 µm, indeed a remarkable difference that might be the result of a biogeographical pattern with two tentative species or subspecies. Nevertheless, a doubt persists over the true identity of several of these populations, which should be resolved before proposing any taxonomical change.…”

“…Sporonchulus ibitiensis (Carvalho, 1951) Andrássy, 1958 Mononchus ibitiensis Carvalho, 1951. Syn. Sporonchuloides ibitiensis (Carvalho, 1951) Mohandas & Prabhoo, 1982. Material examined. Four females from one location, in good state of preservation.…”

“…The occurrence of Sporonchulus in Vietnam is not reported so far. Nevertheless, a population of Sporonchulus ibitiensis (Carvalho, 1951) Andrássy, 1958 was collected in the course of a general nematological survey conducted to explore the mononchid diversity of natural enclaves of the country, and fresh specimens were therefore available for sequencing. Besides, the revision of the material previously identified as Actus conoidus Dhanachand, Romoni & Pramodini, 2006by Vu (2017 has revealed that it belongs to S. vagabundus Jairajpuri, 1971.…”

Nota sôbre o gênero Mononchus de nematódeos predadores

“…Bastian, 1865, do Estado de S. Paulo, graças principalmente aos trabalhos de CARVALHO (1951CARVALHO ( , 1953CARVALHO ( , 1955CARVALHO ( , 1956CARVALHO ( , 1956a, vem sendo paulatinamente conhecida. Os estudos deste autor trouxeram ao conhecimento da ciência quatro interessantes e boas espé-cies: M. ibitiensis Carvalho, 1951;M.…”

Contribuição ao conhecimento dos nematódeos do solo de algumas regiões do estado de São Paulo

“…proviniente do Itatiaia, numa altitude de 2,500 m. Espécie de hábito� nematófagos conhecidos. Carvalho, 1951. Espécie nematófaga, constatada na Estação Experim�ntal de Monte Alegre do Sul, pertencente ao Instituto Agron6mico de Campinas, ao redor de raízes de cenoura.…”