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A new species of Blatticola Schwenk, 1926 (Oxyurida, Thelastomatidae) a parasite of Anurogryllus muticus (De Geer, 1773) (Orthoptera, Gryllidae) from Argentina

By María Fernanda Achinelly and Nora B. Camino

Abstract

Blatticola cristovata n. sp. (Oxyurida, Thelastomatidae) a parasite of the cricket Anurogryllus muticus (De Geer, 1773) (Orthoptera, Gryllidae) from Argentina, is described and illustrated. This is the first species of the genus Blatticola found parasitizing cricket. This new species is characterized in females by having the cuticle annulated through the body length, the mouth opening is subtriangular and surrounded by eight cephalic papillae, the stoma is short with three pairs placed in two rows of cuticular sclerotised plates, amphids in small pore shaped, oesophagus is divided into three parts, anterior cylindrical corpus, isthmus distinct, and basal bulb valved, the nerve ring is situated around the middle of corpus, the intestine is wide broad anteriorly, oval eggs, smooth shell, with a straight side, and the other side with a band running longitudinally. Males with one pair of preanal, one pair of adanal and two pairs of postanal papillae, and the tail appendage short, conical and pointed.<br>Una nueva especie Blatticola cristovata n. sp. (Oxyurida, Thelastomatidae) parásita del grillo Anurogryllus muticus (De Geer, 1773) (Orthoptera, Gryllidae) en Argentina, se describe e ilustra. Esta es la primera especie del género Blatticola que se encontró parasitando a grillos. Esta nueva especie se caracteriza por tener las hembras la cutícula anillada a lo largo de todo el cuerpo, la abertura bucal triangular rodeada por ocho papilas cefálicas, el estoma corto con tres pares de placas esclerotizadas dispuestas en dos líneas, anfidios pequeños en forma de poro, esofago dividido en tres partes, una anterior con un corpus cilíndrico, un istmo distintivo, y un bulbo basal con valvas, el anillo nervioso situado rodeando el corpus, el intestino ensanchado anteriormente, huevos ovales, de cáscara lisa, con un lado recto y el otro con una cresta longitudinal. Macho con un par de papilas preanal, uno adanal y dos pares de papilas postanales, y apéndice caudal corto, cónico y punteagudo

Topics: Blatticola cristovata sp. n., Nematoda, taxonomia, Oxyurida, Thelastomatidae, Blatticola cristovata n. sp., Nematoda, taxonomy, Zoology, QL1-991, Science, Q, DOAJ:Zoology, DOAJ:Biology, DOAJ:Biology and Life Sciences
Publisher: Universidade de São Paulo
Year: 2007
DOI identifier: 10.1590/S0031-10492007001500001
OAI identifier: oai:doaj.org/article:4ff0d9c102e7466ba7b263ee7ab63173
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