First record of Gryllophila skrjabini sergiev, 1923 and Cephalobellus magalhaesi Schwenk, 1926 (Nematoda: Thelastomatidae) parasites oF Neocurtilla claraziana Saussure, 1874 (Orthoptera: Gryllotalpidae) in Argentina

Abstract

Thelastomatidae is one of the largest families parasitizing insects, within the order Oxyurida. In this work we reported parasitism in nymphs and adults of Neocurtilla claraziana by two different thelastomatid species as a part of a field survey on agricultural pests. Nymphs and adults of this insect were isolated from grasslands of Buenos Aires State, Argentina using a tensio-active solution. The nematode species Gryllophila skrjabini Sergiev, 1923 and Cephalobellus magalhaesi Schwenk, 1926 are briefly described and measurements are given. Both nematodes are reported for the first time in Argentina with C. magalhaesi being the second isolation of this species in the world. Neocurtilla clarziana is a new host record for G. skrjabini.