Andrena catula, WARNCKE, 1968

Kratochwil, Anselm & I, Canary, 2020, Revision of the Andrena wollastoni group (Hymenoptera, Anthophila, Andrenidae) from the Madeira Archipelago and the Canary Islands: upgrading of three former subspecies and a description of three new subspecies, Linzer biologische Beiträge 52 (1), pp. 161-244 : 227-229

Andrena catula differentiated from A. dourada , A. gomerensis , A. lineolata , A. tiaretta , and A. wollastoni

- Andrena catula – A. dourada : The species are separated in the space spanned by shape PC1 and shape PC2 when using 13 morphometric parameters (BL, FL1, FL3, FVL, FVW, HL, HW, MSW, MTW, OCD, OOD, PBAL, and WL) ( Fig. 33a ). The two best ratios plotted are PBAL/PSL and FVW/OOD (using the same morphometric parameters). The cluster of PC1/PC2 and the clusters of the best ratios are clearly separated.

- Andrena catula – A. gomerensis : The species are separated in the space spanned by shape PC1 and shape PC2 when using 15 morphometric parameters (BL, CL, FL1, FL2, FL3, HL, HW, LPW, MSW, MTW, OCD, OOD, POD, and PSL) ( Fig. 33b ). The two best ratios plotted are BL/MTW and BL/LPW (using the same morphometric parameters). The cluster of PC1/PC2 and the clusters of the best ratios are clearly separated.

- Andrena catula – A. lineolata : The species are separated in the space spanned by shape PC1 and shape PC2 when using 18 morphometric parameters (CL, FL1, FL2, FVL, FVW, HL, HW, LPW, MSW, MTW, POD, PBAL, PSL, and WL) ( Fig. 33c ). The two best ratios plotted are FVW/HL and LPW/POD (using the same morphometric parameters). The cluster of PC1/PC2 and the clusters of the best ratios are clearly separated.

- Andrena catula – A. tiaretta : The species are separated in the space spanned by shape PC1 and shape PC2 when using 14 morphometric parameters (CLP, FL1, FL2, FVL, FVW, HL, HW, LPW, MSW, MTW, POD, PBAL, PSL, and WL) ( Fig. 33d ). The two best ratios plotted are FVL/HW and FVW/HW (using the same morphometric para -

meters). The cluster of PC1/PC2 and the clusters of the best ratios are clearly separated.

- Andrena catula – A. wollastoni : The species are separated in the space spanned by shape PC1 plotted against shape PC2 when using 13 morphometric parameters (BL, FL1, FL2, FL3, HL, HW, MSW, MTW, OOD, POD, PSL, and WL) ( Fig. 33e ). The two best ratios plotted are MTW/POD and FL3/WL (using the same morphometric parameters). The cluster of PC1/PC2 and the clusters of the best ratios are clearly separated.

Figures

Fig. 33: Shape PC1 plotted against shape PC2 and the two best plotted ratios of morphometric features: (a) A. catula – A. dourada, (b) A. catula – A. gomerensis, (c) A. catula – A. lineolata, (d) A. catula – A. tiaretta, (e) A. catula – A. wollastoni, and (f) A. dourada – A. gomerensis.