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See Odynerus spinipes for literature on this species.

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See Odynerus spinipes for literature on this species. See also Olberg (1959).

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Little is known about the very rare O. simillimus. See Odynerus spinipes for literature on this species.

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Identification keys, distribution and general biology are given in Nielsen (1932), Spradbery (1973), Richards (1980), Falk (1991), and Yeo and Corbet (1995).

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See Symmorphus crassicornis for literature on this species.

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A small black solitary wasp. Identification keys are given in Yeo & Corbet (1995), Lomholdt (1984) and Richards (1980).When using Yeo & Corbet (1995) or Richards (1980), it should be noted that Crossocerus congener (Dahlbom) has recently been added to the British species list. C. congener is very similar in appearance to C. podagricus but has only been recorded on a very few occasions. Critical determinations for C. podagricus are best made using Lomholdt (1984). 

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A small black solitary wasp. Identification keys are given in Yeo & Corbet (1995), Lomholdt (1984) and Richards (1980).

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A small black solitary wasp with a yellow clypeus in both sexes. Identification keys are given in Yeo & Corbet (1995), Lomholdt (1984) and Richards (1980).

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Formerly known as C. pusillus. A small black solitary wasp. Identification keys are given in Yeo & Corbet (1995), Lomholdt (1984) and Richards (1980).