Chalarus argenteus Coe, 1966
publication ID |
https://doi.org/ 10.5281/zenodo.184950 |
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https://doi.org/10.5281/zenodo.5622198 |
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https://treatment.plazi.org/id/367D87D6-FFD3-8D65-FF78-FCBAFD0EE7E0 |
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Plazi |
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Chalarus argenteus Coe, 1966 |
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Chalarus argenteus Coe, 1966 View in CoL
Chalarus argenteus Coe, 1966: 156 View in CoL .
Diagnosis: Male unknown. Female with frontal facets moderately enlarged (J92 Fig. 2 View FIGURES 1 – 6 A); frons at narrowest point 1.2–1.5 times diameter of largest frontal facet; flagellum dark brown; legs entirely dark brown; pulvilli of all legs of same size, shorter than distitarsus; hairs on femora light to mid brown in holo- and paratype; hairs on thorax and abdomen mid to dark brown; posterior/posterodorsal hair fringe on mid femora ( Fig. 79 View FIGURES 79 – 80 ); hind femur with apical hairs of pdsr extending as far as apex; abdominal tergites dark brown; ovipositor as in Figs 65–66 View FIGURES 63 – 75 . No DNA barcode could be obtained.
Annotations: The holotype and the paratype of C. argenteus were obtained for study, as was the only reared specimen (ex. Typhlocyba quercus ) mentioned in Jervis (1992). The abdomen of the holotype was removed in order to enable a detailed study of the shape of the ovipositor ( Fig. 66 View FIGURES 63 – 75 ). Unfortunately, the ovipositor suffered deformation in this process but its shape is still discernible. In the past, the ovipositor of the paratype was dissected and placed in canada balsam. Today, the embedding medium is partly chipped off and the ovipositor lost. Based on adult morphology, C. argenteus strongly resembles C. spurius but normally has a slightly shorter and straighter tergite 9 (ovipositor’s piercer), a slightly narrower frons and a slightly longer, paler and more strongly curved posterior/posterodorsal hair fringe on mid femora (compare Figs 79–80 View FIGURES 79 – 80 ). Jervis (1992 & in litt.) provides convincing larval/pupal evidence for an independence of the taxon by comparing the shape of the mandibles of second instar larva of C. argenteus and C. spurius (J92 Figs 38 View FIGURES 34 – 48 E & Q–R) and the posterior spiracular plate of fully grown larva/puparium (J92 Figs 40 View FIGURES 34 – 48 B & 42E). Both features clearly differ from each other — note that the upper margin of the posterior spiracular plate of C. argenteus is partly covered with debris and hence not clearly visible.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Chalarus argenteus Coe, 1966
Kehlmaier, Christian & Assmann, Thorsten 2008 |
Chalarus argenteus
Coe 1966: 156 |