Abstract
Five species of the genus Bryophaenocladius Thienemann described by Brundin (1947), B. aestivus, B. flexidens, B. in-constans, B. propinquus and B. scanicus, are redescribed. Lectotypes of 5. aestivus and B. flexidens are designated. Bryophaenocladiusis one of the largest genera of the subfamily Orthocladiinae. The genus is distributed worldwide, with the possible exception of Australasia. To date, more than 100 species have been recorded from all over the world (Ashe 1983; Ashe & Cranston 1990; Chaudhuri et al. 2001; Freeman & Cranston 1980; Liu & Wang 2005; Sasa & Kikuchi 1995; Spies & Reiss 1996; Wang 2000; Wang et al. 2001, 2004, 2006; Yamamoto 2004; Saether & Spies 2004). The genus is difficult to delimit since there are exceptions for nearlyall diagnostic characters. A typical Bryophaenocladius has strong and decumbent acrostichals beginning close to antepronotum; wing membrane without setae, but with coarse punctation visible at 40x magnification, squama with one to several setae; tibial spurs strongly developed, with well developed, but not divergent lateral denticles; hind tibial comb well developed; sensilla chaetica absent; tergite IX distinctive, with strongly pigmented, semi-circular band running around posterior margin; anal pointprojecting from setose area, large, semicircular to triangular; virga consisting of simple spines; gonostylus often distinctly broadened; strong megaseta.
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