J. Birket-Smith

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1. All Eriocraniidae other than the nearctic Acanthopteroctetes are considered to constitute a single genus, Eriocrania. 6 species of the genus are investigated, viz. subpurpurella, unimaculella, sparrmannella haworthi, sangii and semipurpurella. 2. Segment IX is for the greater part freely exposed behind the pregenital segments. Ventrally its frontal edge(More)
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