Orthocladius glabripennis Goetghebuer, 1921

Bruno Rossaro & Carlotta Casalegno, 2001, Description of the pupal exuviae of some species belonging to Orthocladius s. str. van der Wulp, 1874 (Diptera: Chironomidae: Orthocladiinae), with a new key to species of West Palaearctic region, Zootaxa 7, pp. 1-20 : 5-6

Orthocladius glabripennis Goetghebuer, 1921

O. glabripennis Goetghebuer, 1921

O. atripluma Kieffer, 1923 ( Langton & Cranston 1991)

O. mitisi Goetghebuer, 1938 ( Langton & Cranston 1991)

Orthocladius Pe 5 Langton, 1984 ( Langton 1991: 188; Langton & Cranston 1991)

DESCRIPTION. Similar to O. marchettii , except for light colour of all abdominal segments. Median points band not well separated from the posterior band and of similar size and shape. Apical setae on anal lobes straight, anal lobes always without (never with reduced or colourless) apical taeniate extensions of cuticle.

COMMENTS. The species can be separated from O. marchettii thanks to the colour of abdomen, its area of distribution (CENTRAL EUROPE, BELGIUM, GREAT BRITAIN, HUNGARY) and its ecology ( O. glabripennis is restricted to lentic waters, O. marchetti lives in running waters). O. glabripennis never has any apical extension of cuticle on anal lobes; specimens with small and colourless taeniate extensions of cuticle ( Cranston & Langton 1991) should belong to other species ( O. ticinoi for example).