chaetocnema dataset

Chaetocnema flea beetles

Lubischew data (1962, pp. 465--468, tables 4--6): 74 Chaetocnema flea beetles specimens which belong to three cryptic species.

Sources of specimens:

Chaetocnema concinna Marsh:

1-6 Environs of Uljianovsk; 7 Khvalynsk, the Volga; 8-9 Perm; 10-14 Environs of Leningrad; 15-17 The Ukraine; 18 Ashkhabad, Turkmenistan; 19-21 France.

Ch. heikertintgeri Lubis.:

1-8 Environs of Uljianovsk; 9 Khvalynsk; 10-14 Perm; 15-17 Environs of Leningrad; 18-20 The Ukraine; 21 Ustj-Zilma; 22 Gagra, Abkhazia; 23-27 Ussuri district; 28-29 Yakutsk district; 30 Khabarovsk; 31 Germany.

Ch. heptapotamnica Lubis.:

1-18 Environs of Lake Issyk-Kul, Kirghizia; 19 Alma-ata, Kazachstan; 20-22 Environs of Frunze, Kirghizia.

chaetocnema

Format

These data frame contains the following columns:

• Species: Species epithet
• No: Number of sample (see below)
• x10: Width of the first joint of the first tarsus (the sum of measurements for both tarsi), in microns
• x12: The same for the second joint
• x14: The maximal width of the aedeagus in the fore-part, in microns
• x18: The front angle of the aedeagus, 1 unit = 7.5 degrees
• x40: The maximal width of the head between the external edges of the eyes, in 0.01 mm
• x48: The aedeagus width from the side, in microns

Source

Lubischew A.A. 1962. On the use of discriminant functions in taxonomy. Biometrics. 18:455--477.