MAŠOVÁ, Šárka, Ondřej KOŠULIČ and Chaowalit SONGSANGCHOTE. Unexpected visitor: mermithid nematode (Mermithidae, Nematoda) – surprised host: Bark Spider, Caerostris sumatrana (Araneae, Araneidae). In PROGRAMME & ABSTRACTS - 29th EUROPEAN CONGRESS OF ARACHNOLOGY. 2015.
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Basic information
Original name Unexpected visitor: mermithid nematode (Mermithidae, Nematoda) – surprised host: Bark Spider, Caerostris sumatrana (Araneae, Araneidae)
Authors MAŠOVÁ, Šárka (203 Czech Republic, guarantor, belonging to the institution), Ondřej KOŠULIČ (203 Czech Republic) and Chaowalit SONGSANGCHOTE (764 Thailand).
Edition PROGRAMME & ABSTRACTS - 29th EUROPEAN CONGRESS OF ARACHNOLOGY, 2015.
Other information
Original language English
Type of outcome Conference abstract
Field of Study 10600 1.6 Biological sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/15:00095791
Organization unit Faculty of Science
Keywords in English Nematoda; Mermithidae ; dipterocarp forest; Bark Spider
Changed by Changed by: RNDr. Šárka Mašová, Ph.D., učo 106026. Changed: 26/3/2018 11:55.
Abstract
A new record of a parasitic nematode from the family Mermithidae (Nematoda) parasitising a female Bark Spider, Caerostris sumatrana Strand, 1915 (Araneae: Araneidae) from the Phethaburi province (Ban Lat district) in the southern part of Central Thailand is described. The host spider belongs to the orb-web guild, occurring in shrubs and trees of lowland dipterocarp forests. Specific identification was impossible because morphological identification of mermithids to genus and species mainly requires adult male samples (2 molts after emergence) (Poinar 1985, Allard and Robertson 2003) and only a subadult developmental stage was available. The nematode was extremely long in respect to its spider host, length was about 28 cm, brownish in colour, slightly transparent at tapered rounded ends. Probably, it belongs to the genus Aranimermis Poinar & Beton, 1986 on the basis of the characteristics: presence of six cephalic papillae in one plane, amphids located near to the lateral cephalic papillae, mouth opening terminal and postparasitic juvenile without tail appendages. This finding is among the first records of a mermithid parasite from an orb web spider species living in higher vegetation in Southeast Asia and the first record of nematode parasitism in the host species of genus Caerostris Thorell, 1868.
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