Cephalobellus lobulata n. sp. (Oxyurida: Thelastomatidae) a parasite of Neocurtilla claraziana Saussure (Orthoptera: Gryllotalpidae) from Argentina

Cephalobellus lobulata n. sp. (Oxyurida: Thelastomatidae) a parasite of the mole cricket Neocurtilla claraziana Saussure (Orthoptera: Gryllotalpidae) found in Argentina is described and illustrated. It is characterized by a short buccal cavity armed with three teeth, a striated cuticle with the first annule wide with four lobes and the second annule divided in twelve lobes. The male have three pairs of preanal papillae and two pairs of postanal papillae.

Binema bonaerensis n. sp. (Oxyurida: Thelastomatidae) parasite of Neocurtilla claraziana Saussure (Orthoptera: Gryllotalpidae) in Argentina

The nematode Binema bonaerenses n. sp. (Osyurida: Thelastomatidae) is described from the intestine of the mole cricket of Neocurtilla claraziana Saussure (Orthoptera: Gryllotalpidae) from Buenos Aires Province, Argentina. It is distinguished mainly by having a conical tail; three sclerotized arches in the buccal cavity ; an excretory pore inmediately posterior to the base of the esophagus and the presence of five pairs of male genital papillae with one pair preanal and four pairs postanal.

Ocorrencia de nematoides parasitas em conocephalus (orthoptera; tettigoniidae) / Ocurrence of nematodes parasites in conocephalus (orthoptera; tettigoniidae)

Os gafanhotos do gênero Conocephalus, segundo hospedeiro intermediário de Eurytrema coelomaticum (Trematoda: Dicroceiliide) no Brasil, foram capturados de pastagens e dissecados no laboratório. Nematóides parasitas foram encontrados na cavidade celomática dos insetos e foram indetificados como pertenecentes á familia Mermithidae. Estes nematóides podemos ser uma importante ferramenta para o controle biológicos destes insetos na naturaleza