Andrena, Fabricius, 1775

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 : 234

Andrena a. wildpreti differentiated from A. g. gomerensis and A. g. palmae, and A. g. gomerensis differentiated from A. g. palmae

- Andrena a. wildpreti – A. g. gomerensis: The subspecies are separated in shape PC1 plotted against shape PC2 when 18 morphometric parameters (CL, FL1, FL2, FVL, FVW, HL, HW, LPW, MSW, MTW, POD, PBAL, PSL, WL) ( Fig. 36e ). The two best ratios plotted are FL1/MSW and CL/FVL using the same morphometric parameters. The clusters of PC1/PC2 and of the best ratios are well separated.

- Andrena a. wildpreti – A. g. palmae: The subspecies are separated in shape PC1 plotted against shape PC2 when 18 morphometric parameters (CL, FL1, FL2, FVL, FVW, HL, HW, LPW, MSW, MTW, POD, PBAL, PSL, WL) ( Fig. 37f ). The two best ratios plotted are HW/OOD and FVL/OCD using the same morphometric parameters. The clusters of PC1/PC2 and of the best ratios are well separated.

- A. g. palmae and A. g. gomerensis: The subspecies are separated in shape PC1 plotted against shape PC2 when 11 morphometric parameters (BL, FL3, FVL, HL, HW, MSW, MTW, OOD, POD, PBAL, PSL) ( Fig. 37a ). The two best ratios plotted are HW/OOD and BL/POD using the same morphometric parameters. The clusters of PC1/PC2 and of the best ratios are partly separated.

Figures

Fig. 36: Shape PC1 plotted against shape PC2 and the two best plotted ratios of morphometric features: (a) Andrena a. acuta – A. g. palmae, (b) A. a. tenoensis – A. a. wildpreti, (c) A. a. tenoensis – A. g. gomerensis, (d) A. a. tenoensis – A. g. palmae, (e) A. g. gomerensis – A. a. wildpreti, (f) A. g. palmae – A. a. wildpreti.

Fig. 37: Shape PC1 plotted against shape PC2 and the two best plotted ratios of morphometric features: Andrena g. gomerensis – A. g. palmae.