Dark-winged blood bee


Dark-winged blood bee ♂︎ (Sphecodes gibbus) on Giant goldenrod (Solidago gigantea)

1. DISTRIBUTION

Sphecodes gibbus is a less common wasp in the Netherlands and is found mostly in the south and middle of the country [5].

2. BEHAVIOUR

2.1. ACTIVITY

The species is active from end March to September [2,4,5], with a peak for females eind of July and for males beginning of August [4].

Females overwinter [2].

2.2. DEVELOPMENT

Bloodbees are cleptoparasites [6] on especially HALICTUS and LASIOGLOSSUM bees [2,6].

3. IDENTIFICATION

The wasp is small, female 7 – 13 mm, male 7 – 12 mm [2].

The characteristics of the species are:

1. Antenna segments in the tip covered for 1/3 maximum with felt-like pubescence, and anntenna knobbly [3]

Dark-winged blood bee ♂︎ (Sphecodes gibbus), antenna segments in tip less than 1/3 covered with felt-like pubescense

2. Antenna segments from segement 4 1,5x longer than wide [4]
3. Antenna segment 4 2x longer than wide [4]

Dark-winged blood bee ♂︎ (Sphecodes gibbus), antenna segment 4 2x longer than wide

4. Area behind ocelli punctuated [3]

5. Vertex with glossy spaces between punctiation [4]

6. Back widely punctuated, diameter at least as wide as one punctiation [4]

Dark-winged blood bee ♂︎ (Sphecodes gibbus), area behind ocelli punctuated, back spaceously punctuated

6. Tegites I to III more densely punctuated [4]

Dark-winged blood bee ♂︎ (Sphecodes gibbus) on Giant goldenrod (Solidago gigantea)

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