| Macrotrachela plicata var. plicata, dorsal view; focus on the upper lip. The cuticula is conspicuously folded lengthwise. |
| |
 |
| Macrotrachela plicata plicata, dorsal view with focal plane on the rump, which is broadened in characteristic manner. The anal segment is folded in typical manner as well. |
| |
 |
| Macrotrachela plicata plicata; ligula in the sulcus (arrowhead). Another species with a ligula in the sulcus is Macrotrachela nana ligulata, but this species has different upper lip. |
 |
| Macrotrachela plicata plicata; ligula in the sulcus of another specimen (white arrow) (nature reserve Heiliges Meer, 17.04. 2012) |
 |
| Macrotrachela plicata plicata; ligula in the sulcus of another specimen (arrowhead) (nature reserve Heiliges Meer, 17.04. 2012) crop of above image. |
|
|
| Macrotrachela plicata plicata, left image: focus on two-lobed (triangles) upper lip with Y-shaped notch (arrowhead). Right image: foot with spurs and 3 toes (Heiliges Meer (4.2012)) |
| |
 |
| Macrotrachela plicata plicata, trophi with dental formula 2/2 |
| |
 |
| Macrotrachela plicata var. plicata, specimen from (2). |
| |
| |
| |
 |
| Macrotrachela plicata var. plicata, crop of the above image showing the head with upper lip. (2) |
|
|
| Macrotrachela plicata var. plicata, upper row: two aspects of the head with rostrum, different focus planes. Lower images: left: head with rostrum lamella (2). Right: rostrum of specimen from (3). Further description see below. |
 |
| Macrotrachela plicata plicata, head with rostrum and rostrum lamella; three different aspects (excerpt from video of a creeping specimen). Left: the arrowheads point to some conspicuous cavities in the rostrum. Middle: the arrowheads point to some granular structures which might have some function in attaching the specimen to the substrate while creeping. (3) |
| |
 |
| Macrotrachela plicata plicata; another specimen, contracted (26.05.2013) |
| |
 |
| Macrotrachela cf plicata; a specimen with conspicuous hair- like structures on the integument. |
| |
| Differential diagnosis: Macrotrachela plicata hirundinella has a different shaped anal segment. |
| Location: Haspelmoor, Bavaria, Sphagnum-bog (1); NSG Heiliges Meer, Erdfallsee, Sphagnum (2); St.Ulrich, Pillersee, Tirol, Austria (3) |
| Habitat: Sphagnum (1,2); litter (3) |
| Date: 22.09.2012 (1); 08.07.2014 (3) |
|
|
