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Subgenus Vellandrena Pisanty subgen. nov. Type species: Andrena bassana Warncke, 1969, designated here. Description. Small to medium-sized bees (8–12.5 mm). Integument dark, male clypeus dark to partly yellow (Figs. 100–101). Head 1.2 times broader than long (Figs. 94, 100, 101). Mandible bidentate, normally developed in both sexes (Figs. 94, 100). Condylar lamella of female mandible weakly developed. Galea shagreened, punctation sparse and very weak, apex more or less rounded. Maxillary palpus extending beyond galea, six-segmented, segment 2 longest, 1.3 times longer than 1. Glossa short, 2.7 times longer than broad, very slightly extending beyond galea. Labial palpus slightly longer than glossa, four-segmented (Figs. 94, 100). Subgenal coronet present, coronet teeth limited to inner margin of paramandibular process. Labral process triangular in female (Fig. 94), narrow and bidentate in male (Fig. 110). Clypeus, mesonotum, scutellum, metanotum and terga mostly smooth, densely and strongly punctured in female (Figs. 89–94), partly shagreened and more weakly, sparsely punctured in male (Figs. 100–105). Clypeus 1.7 times broader than long, in females almost completely flat (Fig. 94), in males weakly protuberant, flattened medially (Figs. 100–101). Malar space absent. Inner margins of compound eyes parallel-sided in females (Fig. 94), converging below in males (Figs. 100–101). Facial foveae broad throughout, almost rectangular, separated from compound eye by smooth linear area, fovea width equals 0.65 times antennocular distance (Figs. 89, 91, 94). Distance of fovea from lateral ocellus about 1.1 ocellar diameters. Female flagellomere 1 longer than 2+3, shorter than 2+3+4 (Fig. 94), male flagellomere 1 as long as 2+3 or slightly shorter (Figs. 100–101). Genal area weakly broadened, especially in males, 1–1.3 times as broad as compound eye. Vertex well-developed, ocelloccipital distance 1.7–2.4 ocellar diameters (Figs. 89, 91, 102–103). Preoccipital ridge moderately carinate dorsally, rounded laterally. Dorsolateral ... |