Myrmeconema neotropicum n. g., n. sp., a new tetradonematid nematode parasitising South American populations of Cephalotes atratus (Hymenoptera: Formicidae), with the discovery of an apparent parasite-induced host morph.
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CONTRIBUTORS:
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JOURNAL:
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YEAR:
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2008
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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nematode, parasite, taxonomy, description
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DISCIPLINE:
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Biology
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HTTP:
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LANGUAGE:
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English
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PUB ID:
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103-434-911
(Last edited on
2007/11/26 06:43:12 US/Mountain)
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SPONSOR(S):
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ABSTRACT:
A new genus and species of tetradonematid nematode, Myrmeconema neotropicum n. g., n. sp. (Mermithida: Tetradonematidae) is described from larval, pupal and adult stages of Cephalotes atratus L. (Hymenoptera: Formicidae) in Peru and Panama. Diagnostic characters of the new genus include: males and females subequal in size, cuticle with minute annulations; 6 cephalic papillae; stylet present in all stages; stichocytes absent; trophosome degenerate; three penetration glands; gonads paired and opposite; vulva in mid-body region; single spicule; genital papillae absent; adult tails rounded; infective juveniles molt once in egg; and the adults of both sexes remain in the host throughout their development. As the female nematodes mature inside the worker ants, the host gasters change colour from black to red.
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