Episyron rufipes ♀︎♂︎

Last update: 30 January 2020
SPECIES: Episyron rufipes
GENUS: EPISYRON
FAMILY: Spider wasps (POMPILIDAE)



OBSERVATION:
2020-V-202019-VIII-302019-V-282019-V-24

YEARS:
20192020

MONTHS:
JanFebMarAprMayJunJulAugSepOctNovDec


Episyron rufipes ♀︎

1. DISTRIBUTION

Episyron rufipes is a common wasp throughout the Netherlands [2].

2. BEHAVIOUR

2.1. ACTIVITY

The species is active from May to September [2,3].

2.2. DEVELOPMENT

The species produces two generations per year. Nests are made in the ground [2].
Prey consist of spiders of the genus Orb-weaver spiders (Araneidae) [2] gebruikt.

3. IDENTIFICATION

A midsized wasp: length male 6-9 mm, female 8-13 mm [2].

The characteristics of the genus Episyron are [2]:

1. Edge hindleg with crown of thorns of unequal size and unequal spacing between them

Episyron rufipes ♀︎, edge hind tibia has thorns of unequal height and separation
Episyron rufipes ♀︎, edge hind tibia has thorns of unequal height and separation

2. 2nd discoidal cel on frontwing with protrusion on proximal side

Episyron rufipes ♀︎, discoidal cel 2 with protrusion on proximal side

3. Inner eye edges bottom half diverge slightly

Episyron rufipes ♀︎, inner eye edges bottom half diverge slightly

Characteristics of the species are [4]:

Episyron rufipes ♀︎ on Giant goldenrod (Solidago gigantea)

Males

  1. Pterostigma narrow
Episyron rufipes ♂︎, pterostigma narrow

2. Temple narrower than half the width of the eye, seen from aside

Episyron rufipes ♂︎, width temple less than half the width of the half eye

3. Pubescense and scales silver colored

Females

Episyron rufipes ♀︎

1. Inneredge eye with yellow spot or stripe

Episyron rufipes ♀︎, light spot on edge inner eye
Episyron rufipes ♀︎, light spot on edge inner eye

2. Antennal segment 3 is 4,5 times long as wide

Episyron rufipes ♀︎, antennal segment 3, 4,5 times long as wide

3. Sides tergites 3 and 4 often with white spots [2]

Episyron rufipes ♀︎, side tergites 3 and 4 often with white spot

4. Clypeus, head covered with silver pubescense

Episyron rufipes ♀︎, face covered with silver pubescense

5. First tarsal member leg 1 usually with 4 teeth

6. Legs 2 and 3 red, leg 1 usually darker


References

1 Nederlands Soortenregister

2 Peeters, T.M.J., C. van Achterberg, W.R.B. Heitmans, W.F. Klein, V. Lefeber, A.J. van Loon, A.A. Mabelis, H. Nieuwen-huijsen, M. Reemer, J. de Rond, J. Smit, H.H.W. Velthuis, 2004. De wespen en mieren van Nederland (Hymenoptera: Aculeata). – Nederlandse Fauna 6. Nationaal Natuurhistorisch Museum Naturalis, Leiden, knnv Uitgeverij, Utrecht & European Invertebrate Survey – Nederland, Leiden.

3 Waarneming.nl

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