Harper P. P., Harper F., 1982: Mayfly communities in a Laurentian watershed (Insecta: Ephemeroptera). 13 pp.
50
2
MSG 59379
Hefti D., Tomka I., 1986: Notes on two mayfly species belonging to the Ecdyonurus helveticus-group (Ephemeroptera, Heptageniidae). 9 pp. Mitt. Schweiz. entomol. Ges. 59(3-4): 379-387.
50
2
MSG 59369
Hefti D., Tomka I., Zurwerra A., 1986: Ecdyonurus parahelveticus n. sp., a new species belonging to the Ecdyonurus helveticus-group (Ephemeroptera, Heptageniidae). 9 pp. Mitt. Schweiz. entomol. Ges. 59(3-4): 369-377.
50
2
NBE 50113
Hess M., Heckes U., 2001: Beitrag zur Wasserinsektenfauna der Bäche und Quellen im Stadtgebiet München (Ephemeroptera, Plecoptera, Heteroptera, Coleoptera, Trichoptera u.a.). 15 pp. Nachrichtenblatt der Bayerischen Entomologen 50(4): 113-127.
95
4
71598
Hirvenoja M., 1964: Studien über die Wasserinsekten in Riihimäki (Südfinnland). IV. Ephemeroptera, Odonata, Hemiptera, Lepidoptera und Coleoptera. 29 pp.
250
10
PAE 84150
Hogue J. N., Hawkins C. P., 2008: Notes on the distribution of the mayfly Caudatella edmundsi (Allen, 1959) (Ephemeroptera: Ephemerellidae). 5 pp. Pan-pacific entomologist 84(2): 150-154.
50
2
SYS 08383
Hubbard M. D., 1983: Ephemeroptera of Sri Lanka: Ephemeridae. 10 pp. Systematic Entomology 8(4): 383-392.
95
4
72052
Humpesch U. H., 1980: Effect of temperature on the hatching time of parthenogenetic eggs of five Ecdyonurus spp. And two Rhithrogena spp. (Ephemeroptera) from Austrian streams and English rivers and lakes. 11 pp.
95
4
72053
Humpesch U. H., Elliott J. M., 1980: Effect of temperature on the hatching time of eggs of three Rhithrogena spp. (Ephemeroptera) from Austrian streams and an English streams and river. 19 pp.