Form described by Langton, 1991
Diagnosis
The following species are apparently indistinguishable as pupae:
Thienemanniella clavicornis (Kieffer).
Thienemanniella flavescens (Edwards).
Thienemanniella obscura Brundin.
Form keys out at Page 600: Orthocladiinae 12 Thienemanniella of the Text Key.