haltica: Haltica flea beetles

In shipunov: Miscellaneous Functions from Alexey Shipunov

Haltica flea beetles

Description

Lubischew data (1962, pp. 460–461, table 2): 39 Haltica flea beetles specimens which belong to two cryptic species.

Sources of specimens:

Haltica oleracea:

1, 2, 3, 4, 6: Western Europe (Germany, France, Italy); 5: Leningrad; 7, 8: Perm; 11, 12: Kiev; 15, 16: Middle Volga (Kuibyshev); 17: Orel district, Middle Russia; 9, 10: Northern Caucasus; 13, 14, 18, 19: Transcaucasia (Delizhan, Akstafa).

H. carduorum:

6: Northern Russia (Elabuga); 1, 5, 9, 10, 11, 12, 14, 16, 20: Middle Russia (Penza, Orel, Voronezh districts); 3, 4, 17; Northern Caucasus; 2, 15, 18, 19: Black Sea Coast of the Caucasus; 13: Transcaucasia (Armenia); 7, 8: Middle Asia (Schachriziabs).

Usage

haltica

Format

These data frame contains the following columns:

Species

Species epithet

No

Number of sample (see below)

x5

The distance of the transverse groove from the posterior border of the prothorax, in microns

x14

The length of the elytram, in 0.01 mm

x17

The length of the second antennal joint, in microns

x18

The length of the third antennal joint, in microns

Source

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

Examples

plot(prcomp(haltica[, -(1:2)])$x[, 1:2], col=haltica$Species)

haltica.qj <- Classproj(haltica[, -(1:2)], haltica$Species, method="QJ")
plot(haltica.qj$proj, col=haltica$Species)
text(haltica.qj$centers, levels(haltica$Species), col=1:2)

shipunov documentation built on Feb. 16, 2023, 9:05 p.m.