EPHEMEROPTERA OF THE WORLD
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Here are two different databases: (1) "EPHEMEROPTERA OF THE WORLD" — a catalogue of literature about each mayfly taxon; (2) "PHYLOGENY OF EPHEMEROPTERA" — the most recent phylogenetic classification of supra-species mayfly taxa. These databases are connected by numerous links, but at the same time are independent and can be used separately one from another.

The catalogue "EPHEMEROPTERA OF THE WORLD" contains all references about all mayfly taxa (subspecies, species, subgenera, genera, subtribes, tribes, subfamilies, families, superfamilies, infraorders, suborders, orders, non-ranking taxa and informal taxa) established since year 1758 till now. Each file of this catalogue is titled as "EPHEMEROPTERA OF THE WORLD". All information of this catalogue is objective — i.e. does not depend upon the compillator's opinion about phylogeny, classification and/or nomenclature of mayflies. Here classifications, suggested by all authors in all their publications, are cited as equally available; all taxa names are given in that senses and spellings, as in each of these publications. I this respect the catalogue "Ephemeroptera of the World" differs from  other taxonomic catalogues, where one classification is given as basic and "correct", while all taxa names, which contradict this basic classification, are given as invalid synonyms.

The catalogue contains a separate file for each species-group name, each genus-group name and each non-typified name. 

ALPHABETIC INDICES

All species-group names are listed in an alphabetic index, which is divided into 26 files from "a" to "z"; to open these files, press an underlined small letter ( a  ,  b  , etc.) at the top of each file (see top of this page). A yellow button at the left from each taxon name links it with a corresponding file of the catalogue "Ephemeroptera of the World". 

All supra-species names (genus-group names, typified names and non-typified names) are listed in an alphabetic index; to open this file, press Gen. at the top of each file (see top of this page). To find a family-group name, press a yellow button at the left of its type-genus name in the index of supra-species names.

Species-group names

In all cases, where a species name is given without citation of a certain publication, it is given as a the primary binomen — at first the species name (species epithet) with its original ending, than its original generic name in square brackets; if authorship is given, it is written after the species name and before the generic name. This allows to make species names objective, i.e. independent from opinions of these or that authors about systematic position of these species and about ranks (generic, subgeneric or other) of taxa, to which these species belong. 

For each species-group name — i.e. name of species and/or subspecies — there is a separate file, which contains one or two tables:

1) A table for informal supra-species taxa, if present  (with brown head);

2) A single table for species, subspecies and informal infra-species names (with yellow head). This table contains all citations of this species-group name, each in a separate line. All citations are given in chronological order, independently of species binomina. Each citation, occupying one line, contains the following fields: 

 sources:  — author, year and sometimes pages of the cited publication. 

 subjects:  — stages of development which are described, figured and/or discussed in the cited publication, etc. (for symbols used here see arbithrary signs); by gray colour here can be given brief data on geographical distribution, taken from the cited publication (independently, if they are correct or not); if there is only a gray geographical name without other symbols, it means that the publication contains either only data about distribution in this country, or only a list of specimens collected.

 valid names:  — that binomen which the author of the cited publication regarded to be correct; if the cited publication does not contain a certain unique binomen accepted by the author, here is indicated systematic position of this species or status of this species name, as it was proposed in the cited publication; below the binomen, there can be indicated informal taxon to which it belongs (by gray colour); if the species is designated as the the type of a generic name, it is also indicated under the binomen; if the name is regarded to be a junior synonym, in the field “valid name” there is given its older synonym, with a link to the corresponding file. If the field "valid names" is yellow, all underlined words are links to corresponding files of the same catalogue "Ephemeroptera of the World"; if this field is blue, an underlined word is a link to the corresponding file of the "Phylogeny of Ephemeroptera" (see below). 

 invalid synonyms:  — that species names which the author of the cited publication regarded to be junior or invalid synonyms. The field "invalid synonyms" is always gray, and underlined words are always links to the same catalogue "Ephemeroptera of the World"; here only the first citation of each synonymous species name is linked.

Genus-group and family-group names

In the alphabetic index of supra-species names, typified names are given in a universal form (i.e. neither ranking, nor hierarchical): each generic name is given with its original ending and supplied with "/g" (if it was used as genus-group name only) or "/fg" (if it was used as genus and family-group name). For each generic name there is a separate file, which contains references of all typified names formed from this generic name — genus-group names (i.e. names of subgenera and genera), family-group names (i.e. names of subtribes, tribes, subfamilies, families, superfamilies, etc.), ranking names of higher taxa and hierarchical non-ranking typified names; in the same file there is also a list of species names which somebody used in combination with this generic name. Such file contains one or several tables — a separate table for each taxon name. These tables are arranged in the following order: 

1) One or several tables for hierarchical non-ranking names, if present (with violet head) — from the highest (accompanied with number "f1" and/or "g1") to the lowest (accompanied with larger numbers). These tables contain the same fields as the tables on ranking names (see below), but the field "valid name(s)" is not yellow, but violet; if the field "valid names" is violet, all underlined words are links to corresponding files of the same catalogue "Ephemeroptera of the World"; if this field is blue, an underlined word is a link to the corresponding file of the "Phylogeny of Ephemeroptera" (see below).

2) One table for supra-generic informal taxa, if present (with brown head).

3) One or several tables for ranking names (with yellow head) — from the highest (order or lower) to the lowest (genus or subgenus). Each table contains the most important citations of this taxon name, each in a separate line. In each table all citations are given in chronological order. Each citation, occupying one line, contains the following fields:

 sources:  — author, year and sometimes pages of the cited publication. 

 subjects:  — stages of development which are described, figured and/or discussed in the cited publication, etc. (for symbols used here see arbitrary signs).

 valid name(s):  — name in that spelling which the author of the cited publication regarded to be correct. If the field "valid names" is yellow, all underlined words are links to corresponding files of the same catalogue "Ephemeroptera of the World"; if this field is blue, an underlined word is a link to the corresponding file of the "Phylogeny of Ephemeroptera" (see below). 

 invalid synonyms:  — that taxa names which the author of the cited publication regarded to be junior or invalid synonyms. The field "invalid synonyms" is always gray, and underlined words are always links to the same catalogue "Ephemeroptera of the World"; here only the first citation of each synonymous genus-group name is linked.

 higher taxon:  — that taxon to which the author of publication attributed the taxon under consideration. The field "higher taxon" is always red, and underlined words are always links to the same catalogue "Ephemeroptera of the World"; here only the first citation of each genus-group name is linked.

 subordinated taxa:  — that taxa which the author of publication regarded to be directly subordinated to the taxon under consideration. The field "subordinated taxa" is always green. In this field names are not linked, but all their links are contained in the alphabetic list of genus-group names (see below). 

4) taxa subordinated to ...  — An alphabetic list of genus-group names of subordinated taxa, if present. In a common alphabetic order here are listed all genus-group names belonging to taxa which these or that authors regarded to be subordinated to any taxa with ranking names given in the table(s) above (some of hese taxa are listed in green fields "subordinated taxa"). 

5) binomina: — A list of species names in alphabetic order. Here species names are given in the universal form, with species epithets in their original spelling, but not as in combination with this generic name. At the right of each species name there is a yellow button which links it with a corresponding species-group file (where, besides other information, all spellings of this species name are given — see above). At the right of each species name there is a symbol, which approximately indicates georgaphical region, where the species is distributed  (see arbitrary signs). Besides objective information (written by black), for some species names there can be given by gray a subjective information about most generally accepted modern systematic position; this information is not necessary here, but can be helpful. 

6) A table of species reported in literature as indeterminate; underlined words link it with corresponding files of the same catalogue "Ephemeroptera of the World".

 sources:  — author, year and sometimes pages of the cited publication. 

 subjects:  — stages of development which are described, figured and/or discussed in the cited publication, etc. (for symbols used here see arbitrary signs).

 actual arbitrary names:  — arbitrary name which is used in the cited publication.

 synonymous arbitrary names:  — name(s) which are mentioned in the cited publication as synonymous.

 valid names:  — name(s) which were subsequently regarded by these or that authors as valid for the arbitrary name under consideration. The field "valid names" is yellow, and underlined words are links to corresponding files of the same catalogue "Ephemeroptera of the World". This table does not give information about publications where the correspondence with the valid names was suggested; this information is contained in the files linked with the valid names.

Non-typified names

For each non-typified name there is a separate file with a single table, which contains the most important citations of this taxon name and has the same fields as in the tables for genus/family-group names (see above).

Homonyms

Homonyms are given in the same file, being separated by black horizontal lines (unlike gray horizontal lines, which separate tables belonging to the same name).

PRESENT CONDITION

Now the catalogue "Ephemeroptera of the World" contains all published taxa names with citations of all taxonomic literature; citations of faunistic and ecological literature are fare not complete.

STRUCTURE AND STANDARDS OF THE DATABASE 
"EPHEMEROPTERA OF THE WORLD"

LINKS:

All links inside the database are given directly to the file, but not through the address of the website and not through the root catalogue of computer. All files belonging to the database EPHEMEROPTERA OF THE WORLD, locate in one directory Eph-spp, so each link inside this database contains only the filename. 

For example, link from Ephemera vulgata to the file ))Ephemera.htm (the file about Ephemera, Ephemeridae, etc.) is <a href="))Ephemera.htm">. 

Link to the symbol of (male imago) is <img border="0" src="_imago-male.gif" width="14" height="14">.

FONTS:

Font face: all over the database, there is used only default font [which is visible as "Times"]; this means that <font face= or face must not be present anywhere. 

Font size is also default [which is visible as 3(12)], except for the following cases only:

in title of each file font size is 4(14)

if there are page numbers or other symbols added after a date of publication, they have font size 1(8).

Font colour is also default [visible as black], except for the following cases only:

geographical names in field subjects are Gray;

names of informal taxa added under species names in field valid names are also Gray.

Font style. All species-group names and genus-group names (except for cases where they are supplied by "/fg" or "/g") are written in Italics. In titles they are written in bold Italics. For other words and punctuation marks neither Italics, nor bold Italics are used (see ICZN Appendix B6); particularly, if a genus-group name is enclosed into brackets, the brackets are written in regular style.

SPELLING:

In the title of each file the taxon name is written in the universal form: 

For species-group name: (1) Species name by bold italics, with its original ending, but in other respects corrected according to the modern ICZN — i.e. without capitals, hyphen, apostrophe and other rejected symbols if they were present in the original spelling. (2) Author's surname and year of publication, without comma and any other mark between them; if there are several authors, all surnames are separated by ampersands; if authorship of the name differs from authorship of the publication, both authorships are given, with the authorship of publication in round brackets after "in" — for example: Lugo-Ortiz & McCafferty (in Lugo-Ortiz & McCafferty & Waltz) 1994. (3) Original generic name by Italics, in square brackets.

For supra-species name: (1) Generic name by regular bold, font colour default; (2) directly after it — /fg or /g (depending if there are available family-group names, or not).

In the tables taxa names are written in that spelling, which was used in the cited publications: binomina are as in the cited publications; ending of species name is as in the cited publication (independently if it is now regarded to be grammatically correct or not); capitals, hyphen, apostrophe and other symbols are as in the cited publication (even if they are rejected by the modern ICZN). That letters in taxon name, which now can be regarded as wrong or questionable, can be underlined, to show that this is the spelling in cited publication, but not a modern misprint. 

Fonts in the tables do not correspond to the cited publication, but are standard for this database: names of species-group and genus-group are always in Italics (not bold Italics); other symbols, including brackets, are in Regular font; first letter of genus-group names and names of higher taxa are capital, other letters are small (small capitals are not used in these tables).

Authorship is everywhere written without comma and with ampersand(s), that can be different from the cited publication.

Abbreviations indicating nomenclatural and taxonomic changes also do not correspond to the cited publication, but are standard for this database: 

subsp.n. — subspecies novum, new subspecies, n.subsp., etc.

sp.n. — species novum, new species, n.sp., etc.

subgen.n. — subgenus novum, new subsgenus, n.subgen., etc.

gen.n. — genus novum, new genus, n.gen., etc.

gen.sp.n. — new species in new genus.

tr.n. — tribus novum, new tribe, etc.

fam.n. — familia nova, new family, n.fam., etc.

nom.n. — nomen novum, new name, etc.

syn.n. — synonym novum, new synonym, n.syn., etc.

comb.n. — combinatio nova, new combination, n.comb., etc.

gen.comb.n. — new combination connected with new genus.

nom.comb.n. — new combination connected with new generic name.

All these abbreviations are written by regular bold, without space after comma.

Opinions about misidentification are given in the following manner:

PARAGRAPHS:

In files for species and subspecies names:

In tables for species and subspecies names:

In tables for informal taxa:

In files for genus-group and family-group names:

In tables for genus-group and family-group names and tables for informal taxa:

In tables for indetermined species:

In lists of binomina:

TABLE PROPERTIES:

In files for species and subspecies names:

In files for genus-group and family-group names:

In each table the last line is empty, but keeps paragraph formatting characteristic for each field (see above); this allows easily add new lines copying the last one.

FILENAMES 

All filenames are written by small letters, only first letter in a generic name is capital (in filenames used on web, case of letters is important; some Windows programs change case of letters in filenames, and this should be corrected!).

Name of a species-file begins with ), than follows species epithet in its original spelling, than its original generic name in round brackets (not in square brackets, unlike spelling in title!), than extension htm. For example: )sulphurea(Ephemera).htm (see ). Filename always consists of two words only: subgeneric name is always omitted; in a name originally given to subspecis, species name is omitted. 

Name of a genus- and family-group-name file begins with )), than follows generic name, than extension htm. For example: ))Heptagenia.htm (see )