FNZ 46 - Nesameletidae (Insecta : Ephemeroptera) - Methods and Conventions
Hitchings, TR; Staniczek, AH 2003. Nesameletidae (Insecta: Ephemeroptera). Fauna of New Zealand 46, 72 pages.
(
ISSN 0111-5383 (print),
;
no.
46.
ISBN 0-478-09349-7 (print),
).
Published 14 May 2003
ZooBank: http://zoobank.org/References/BAB59AE7-4C0F-4901-A54C-76CA14D8B3A2
Materials, methods, and conventions
Larvae and winged stages of Nesameletus were collected throughout New Zealand including Stewart Island by many collectors. To associate larvae with the respective imagos, older instar larvae were usually kept in rearing cages in their native waters until they emerged. Specimens, including type-species, have been stored in 80% ethanol.
SEM. Larval material used for scanning electron microscopy was gained from late instar larvae. Dissected mouthparts, legs, and eggs were dehydrated through a stepwise immersion in ethanol and acetone, and then dried by critical point drying. The mounted material was coated with a 20 nm Au/Pd layer and examined with a Cambridge Stereoscan 250 MK 2 scanning electron microscope at 10 kV.
Light microscopy. Material used for drawings was dissected, mounted on microscopic slides, embedded in Euparal, and viewed under a regular light microscope at 100- 400x magnitude.
Dimensions. For the imagos and larvae of each species, a range of body lengths and their means (in parentheses), and lengths of fore- and hindwings, are given. Length ratios of foreleg segments (femur : tibia : tarsomeres 1-5) are based on length of tibia (absolute measurement in mm, in parentheses).
Collecting sites are grouped into regions of New Zealand using the system proposed by Crosby et al. (1976, 1998). Each region has been allocated a two-letter code as follows: AK - Auckland; BP - Bay of Plenty; BR - Buller; CL - Coromandel; CO - Central Otago; DN - Dunedin; FD - Fiordland; GB - Gisborne; HB - Hawkes Bay; KA - Kaikoura; MB - Marlborough; MC - Mid Canterbury; MK - McKenzie; NC - North Canterbury; ND - Northland; NN - Nelson; OL - Otago Lakes; RI - Rangitikei; SC - South Canterbury; SD - Marlborough Sounds; SI - Stewart Island; SL - Southland; TK - Taranaki; TO - Taupo; WA - Wairarapa; WD - Westland; WI - Wanganui; WN - Wellington; WO - Waikato.
Abbreviations in site descriptions: Br - Bridge, Ck - Creek, L - Lake, R - River, Ra - Range, Stm - Stream, Trib - Tributary.
Map references and altitudes are given in metric coordinates from the map series NZMS 260. The first group of 5 figures gives the east-west grid coordinate to the nearest 100 metres. The second group of 5 figures gives the north-south grid coordinate similarly. The final group of 1 or more figures gives the height above mean sea level in metres. Information relating these grid references to the Canterbury Museum mayfly database is given elsewhere (Hitchings 2001). The equivalent latitude and longitude coordinates are provided in Appendix 2.
Collections Where stated, material examined is held at the following locations:
AMNZ Auckland Institute and Museum, Auckland, New Zealand
BMNH The Natural History Museum, London, U.K.
FAMU Florida A&M University, Tallahassee, Florida, U.S.A.
IMHC I.M. Henderson private collection, Massey University, Palmerston North, New Zealand.
MONZ Museum of New Zealand Te Papa Tongarewa, Wellington, New Zealand
NMNH National Museum of Natural History, Washington D.C., U.S.A.
NZAC New Zealand Arthropod Collection, Landcare Research, Auckland, New Zealand
OMNZ Otago Museum, Dunedin, New Zealand
SMNS Staatliches Museum fūr Naturkunde, Stuttgart, Germany
Otherwise it is deposited at:
CMNZ Canterbury Museum, Christchurch, New Zealand
Collectors: ACH, A. C. Harris; ACM, A. C. Maturin; ADH, A. D. Huryn; AGM, A. G. McFarlane; AHS, A. H. Staniczek; ALM, A. C. McLellan; ARM, A. R. Mackintosh; B&H, B. & H. Patrick; BHP, B. H. Patrick; BJS, B. J. Smith; BML, B. M. Lyford; CHE, C. Herd; DRT, D. R. Towns; EDW, E. Edwards; GCP, G. C. Penney; GHO, G. Holmes; GWG, G. W. Gibbs; H&C, T. R. Hitchings & W. J. Crawford; H&G, T. R. Hitchings & M. T. Gillies; H&H, T. R. Hitchings & G. Holmes; H&Q, T. R. Hitchings & P. J. Quinn; IDM, I. D. McLellan; IMH, I. M. Henderson; J&B, J. B. Ward & B. J. Smith; J&G, J. B. & G. M. Ward; J&S, J. B. Ward & S. J. Morris; JBJ, J. B. Ward, B. H. Patrick & J. S. Dugdale; JBW, J. B. Ward; JGP, J. G. Penniket; JRJ, J. R. Jackson; JSH, J. S. Harding; KAW, K. A. J. Wise; KFO, K. J. Fox; KSH, K. Shearer; L&J, L. Chadderton & J. Harding; LJS, L. J. Seear; LOG, R. Logan; M&H, K. R. McSweeney & T. R. Hitchings; MAP, M. A. Provis; MTG, M. T. Gillies; MWH, M. W. Hitchings; O&C, O. J. & C. Flint; PHI, D. Phibbs; PHN, P. H. Norrie; PLE, P. T. Leaf; PMJ, P. M. Johns; RLP, R. L. C. Pilgrim; RSA, R. A. Savill; SJM, S. J. Morris; T&B, T. R. Hitchings & B. J. Smith; TRH, T. R. Hitchings; WJC, W. J. Crawford.
Terminology: Commonly used names for some of the external features of a mayfly adult are given in Fig. 1 and for the larva in Fig. 5. Wings are described according to the terminology of Edmunds and Traver (1954) (Fig. 2, 3), labia according to Snodgrass (1935) (Fig. 48-58). Names of larval mouthparts are given in Fig. 6 and for the larval leg in Fig. 4. Egg terminology is based on Koss & Edmunds (1974). The term groundplan is used herein sensu Hennig (1950) and refers to the entire character set of the last common stem species of a monophyletic taxon.