| Macrotrachela quadricornifera var. scutellata: whirling, focus plane on the three-lobed upper lip. (1) |
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| Macrotrachela quadricornifera var. scutellata: Head of specimen from (3) |
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| Macrotrachela quadricornifera var. scutellata: Head of specimen from (3). In the sulcus is a semispherical structure that seems to be connected to a posterior structure. (sensorry function?)(3) |
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| Macrotrachela quadricornifera var. scutellata: Head of another specimen from (4) |
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| Macrotrachela quadricornifera var. scutellata: integument of the trunk (6) |
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| Macrotrachela quadricornifera var. scutellata: upper images: foot with semicircular granulated plate on the rump segment. The pointed appendages (not the spurs!!) are also visible. Lower image: spurs. Specimen from (3) |
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| Macrotrachela quadricornifera var. scutellata: upper images: foot with semicircular granulated plate on the rump segment. The pointed appendages (not the spurs!!) are also visible. Lower image: spurs. Specimen from (5) |
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| Macrotrachela quadricornifera var. scutellata: head / corona, front view. Focus plane on the trochal discs, upper lip and rostrum. The dorsal antenna is also visible. (5) |
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| Macrotrachela quadricornifera var. scutellata: same specimen, head / corona, front view. Focus plane on the trochal discs with papillae and sensory bristles (arrowhead). On the right trochal disc (left in this perspective) is one bristle, whereas on the left trochal disc there are two bristles. (5) |
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| Macrotrachela quadricornifera var. scutellata: 2 images of the ramate trophi, cephalic view. Left: dental formula (DF): 2+2/2+1; right; 3+1/2. Ramus length 23µm |
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| more on Macrotrachela quadricornifera >>>> |
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| Location : Griendsveen, Netherlands, sphagnum pond (3); Wahner Heide, Cologne, pond (4); NSG Schwalm Nette; sphagnum ditch (5); Kersaint, Bretagne, France; Lithotelma (6) |
| Habitat: sphagnum (3); sphagnum (4); (5); Detritus (6) |
| Date: 11.05. 2017 (3); 20.05. 2017 (4); 21.12.2019 (5); 11.08.2021 (6) |
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