Identification keys and general biology are given in Morgan (1984) and Falk (1991). Previously known as C. helleni Linsenmaier, 1959. Kunz (1994) considers C. bicolor Lepeletier, 1805 and C. illigeri to be the same species. Morgan (1984) separates these two names, with C. bicolor only known from Jersey.
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Submitted by Anonymous on
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A small, black solitary wasp. Identification keys are given in Lomholt (1984), Richards (1980) and Yeo & Corbet (1995).
Submitted by Anonymous on
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A small, stem nesting solitary wasp. Identification keys are given in Lomholdt (1984) (as R. nigrinum), Richards (1980) and Yeo & Corbet (1995).
Submitted by Anonymous on
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Identification keys and general biology of this species, (also known as C. pallipes Lepeletier, 1805), are given in Morgan (1984) and Falk (1991).
Submitted by Anonymous on
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This is by far the more common species of Stigmus in Britain.
Submitted by Anonymous on
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A small, ground-nesting red and black solitary wasp. Identification keys are given in Richards (1980), Lomholt (1984) and Yeo & Corbet (1995).
Submitted by Anonymous on
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Gayubo & Felton (2000) provide an identification key to the six European Nitela species, as well as detailed descriptions. Felton (1987) keyed the two British species, misidentifying N. lucens as N. spinolae.
Submitted by Anonymous on
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A species closely related to Passaloecus insignis, from which it is separable only with difficulty.
Submitted by Anonymous on
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Probably the most common British species of Passaloecus, at least in the south.