ERRATA
P.7 line 11 from bottom, follow not Follow.
P. 24, last line couplet 5 , spacing between words lacking.
P.44. Figure text should be:
Figures.47-50. Orthocladius (Euorthocladius) annellae sp. n.,, male imago, 47: head, 48: thorax, 49: wing, 50: hypopygium.