Moraria brevipes

Moraria brevipes (Sars, 1863)

(Figs 10–11)

Lo cat io n, eco lo g y. Moraria brevipes was found in peatbog surrounding dystrophic lakes in Wigry National Park (Suchar I, Suchar Wielki) and in a peatbog near Lake Gorbacz (Grodek -Michalowo Basin). Males and females occurred in relatively high abundances.

G e n e r a l d i s t r i b u t i o n a n d b i o l o g y. Widespread in Poland (Błędzki 2004), and occurs almost throughout Europe. Associated mainly with sphagnous swamps. The species has been encountered in the littoral of stagnant water bodies with silty bottoms and in springs where it often shows developmental aberrancies. Absent from the tundra zone (Borutzky 1952).

D i s t i n g u i s h i n g f e a t u r e s. Length without caudal setae 0.55 – 0.63 mm. Caudal rami elongate, tapering terminally (Fig. 8). Dorsal surface of caudal rami with longitudinal ridge (Fig. 9). First and second segment of exopodites of P1 − P4 without seta on inner margin.