Acrodactyla quadrisculpta (Gravenhorst, 1820)

Miller, Jeremy A., Belgers, J. Dick M., Beentjes, Kevin K., Zwakhals, Kees & van Helsdingen, Peter, 2013, Spider hosts (Arachnida, Araneae) and wasp parasitoids (Insecta, Hymenoptera, Ichneumonidae, Ephialtini) matched using DNA barcodes, Biodiversity Data Journal 1, pp. 992-992 : 992

Rank: Species Type of treatment: Redescription or species observation extant Habitat: terrestrial Parasite of: Tetragnatha montana Simon, 1874 Root classification: 8

Acrodactyla quadrisculpta (Gravenhorst, 1820)

Materials

Type status: Other material Occurrence: catalogNumber: RMNH.INS.593867 ; recordedBy: J. Dick M. Belgers; individualCount: 1; sex: female; associatedOccurrences: RMNH.ARA.14127; associatedSequences: http://www.boldsystems.org/index.php/Public_RecordView?processid=PWSH001-13; Taxon: genus: Acrodactyla; specificEpithet: quadrisculpta; scientificNameAuthorship: (Gravenhorst, 1820); Location: country: Netherlands; stateProvince: Gelderland; locality: Wageningen, Blauwe Kamer ; decimalLatitude: 51.943995; decimalLongitude: 5.61874; coordinateUncertaintyInMeters: 30; Event: samplingProtocol: found (by beating) on fijnspar (Norway Spruce, Picea abies); eventDate: 04/17/2012; Record Level: institutionCode: RMNH; basisOfRecord: specimen

Type status: Other material Occurrence: catalogNumber: RMNH.INS.593868 ; recordedBy: J. Dick M. Belgers; individualCount: 1; sex: male; associatedOccurrences: RMNH.ARA.14128; associatedSequences: http://www.boldsystems.org/index.php/Public_RecordView?processid=PWSH002-13; Taxon: genus: Acrodactyla; specificEpithet: quadrisculpta; scientificNameAuthorship: (Gravenhorst, 1820); Location: country: Netherlands; stateProvince: Gelderland; locality: Wageningen, Blauwe Kamer ; decimalLatitude: 51.943995; decimalLongitude: 5.61874; coordinateUncertaintyInMeters: 30; Event: samplingProtocol: found (by beating) on fijnspar (Norway Spruce, Picea abies); eventDate: 04/19/2012; Record Level: institutionCode: RMNH; basisOfRecord: specimen

Type status: Other material Occurrence: recordedBy: J. Dick M. Belgers; individualCount: 1; sex: male; associatedOccurrences: RMNH.ARA.14129; Taxon: genus: Acrodactyla; specificEpithet: quadrisculpta; scientificNameAuthorship: (Gravenhorst, 1820); Location: country: Netherlands; stateProvince: Gelderland; locality: Wageningen, Blauwe Kamer ; decimalLatitude: 51.943995; decimalLongitude: 5.61874; coordinateUncertaintyInMeters: 30; Event: samplingProtocol: found (by beating) on fijnspar (Norway Spruce, Picea abies); eventDate: 04/19/2012; Record Level: institutionCode: KZPC; basisOfRecord: specimen

Notes

Shaw (2006) notes the possibility of some confusion in the literature concerning this parasitoid and the morphologically similar Acrodactyla carinator (Aubert, 1965). Errors in identification of the parasitoid and/or host may be obscuring the true host specificity of these wasps in some parts of their distribution.

Adult wasps were identified as Acrodactyla quadrisculpta (Figs 4, 8) by an experienced ichneumonid taxonomist based on morphological characteristics with reference to the taxonomic literature. DNA barcodes derived from two adult specimens (RMNH.INS.593867 and RMNH.INS.593868) plus the larval exuvium (Fig. 7) were used to query the BOLD database; no match was found. The barcode sequence from the larval exuvium was identical to that of the adult (RMNH.INS.593868) except that the last 9 bases on the 3' end were not sequenced. A subsequent Blast search of NCBI's GenBank found sequences identified as Acrodactyla quadrisculptata among the closest matches. However, the closest matching sequences scored only 93% similarity, lower than expected for most conspecific DNA barcodes. Of the 12 sequences with this similarity score, three were identified as Acrodactyla quadrisculpta ; the remaining sequences were less precisely identified but the taxonomic information was not in conflict with Acrodactyla quadrisculpta . Most if not all of the closest matching DNA barcode sequences were derived from specimens collected in Manitoba, Canada. The resolution of these facts might lie in a high genetic diversity within this widespread species, or taxonomic error at some level. One specimen of Acrodactyla quadrisculpta was not sequenced and remains in the personal collection of Kees Zwakhals (KZPC).