Nemurella pictetii (Klapálek, 1900)

Judson, Sarah W. & Nelson, C. Riley, 2012, 3541, Zootaxa 3541, pp. 1-118 : 32

Nemurella pictetii (Klapálek, 1900)

SYNONYMY

Nemoura pictetii Klapálek, 1900

Nemurella pictetii Illies, 1955

TYPE LOCALITY: Bohemia .

DIAGNOSIS: The cercal segments of the male are long and touch at their apices ( Fig. 164, 165), forming a triangle around the epiproct and the thin, long paraprocts ( Fig. 166). The male epiproct is triangular from dorsal view, somewhat similar to the general shape of Aphinemura standfussi ( Fig. 160). From the lateral view, the epiproct is clearly bifurcated, the ventral and lateral sclerites coming to a junction where a dark sclerotized region crosses the width of the epiproct at a diagonal. Sternum 7 of the female has a central lobe which protrudes between the two sclerotized vaginal lobes of sternum 8 ( Fig. 167). The nymphs have four distinctly longer hairs on the abdominal tergites ( Fig. 149) and long hairs on the distal half of the femur. Late instar males nymphs exhibit external paraprocts. Early instars can be distinguished by their proportionally long cerci and long hairs on the basal antennal segments. In all instars, tarsal segments one and three are equal in length ( Fig. 148).

DISTRIBUTION—Global: Trans-Palearctic— Regional: AOB— Aimag: KhG.

DISCUSSION: The biology and ecology of this species is well known in Europe (Zwick 2004). Depending on elevation, this species has variable voltinism (Wolf & Zwick 1989). It is more common than other Nemouridae in springs, percolating groundwater, and other low flow habitats. Though relatively ubiquitous in Europe, it has been noted to be sensitive to pollution (Zwick 2004).