Contents
- TITLE_SECTIONTitle Section
- CHAPTERStudies on Ephemeroptera II.—Coloburiscus humeralis (Walker); Ecology and Distribution of the Nymphs
- ILLUSTRATIONFig. 1.—Left: Map showing the location of Purau Stream, the Cass Basin and the Selwyn River relative to Christchurch ...
- ILLUSTRATIONFig. 2.—Water levels and air and water temperatures for Purau Stream, October, 1951- October, 1952.
- ILLUSTRATIONFig. 1.—View of the substratum at Station 6, Upper Selwyn River. The stones and boulders were 6in to 2ft in diameter ...
- ILLUSTRATIONFig. 2.—Typical rapid in Purau Stream from which 3,000 Coloburiscus nymphs were collected during 1951 and 1952.
- ILLUSTRATIONFig. 3.—Part of the rapid shown in Fig. 2 showing the considerable variations in the size of the bed components. Nume...
- ILLUSTRATIONFig. 4.—The substratum at Station 6 in the Lower Selwyn River which consisted of small, loosely-packed stones, numero...
- ILLUSTRATIONFig. 3.—Map of New Zealand showing locations where Coloburiscus nymphs were found. The eastern North Island and the s...