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The Gall Midges of St. John's Wort (Hypericum spp.), with Descriptions of two new Species

Published online by Cambridge University Press:  10 July 2009

H. F. Barnes
H. F. Barnes
Affiliation:
Rothamsted Experimeital Station.
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Extract

Characters are given whereby the gall midges attacking St. John's Wort (Hypericum), a noxious weed, may be distinguished.

Four species, Dasyneura hyperici (Bremi), D. serotina (Winnertz), Macrolabis marteli Kieffer and Zeuxidiplosis giardi (Kieffer), inhabit leaf galls in Europe.

One species, Dasyneura toweri Felt, inhabits the flowers in the U.S.A. Three species, Contarinia hyperici, sp. n., Clinodiplosis hyperici, sp. n. and Lestodiplosis (Coprodiplosis) sp., live in the unopened flowers in Europe.

Two species, Lasioptera virginica Felt and Cecidomyia ? triadenii Beutenmüller, are recorded as attacking the stems in the U.S.A. The latter is a name given merely to a gall.

Four species, Geocrypta braueri (Handlirsch), G. hypericina (Tavares) (perhaps a synonym of G. braueri), Trisopsis hyperici Tavares and Lestodiplosis (Coprodiplosis) hyperici (Tavares), live in underground galls in Europe.

Descriptions of Contarinia hyperici, sp. n. and Clinodiplosis hyperici, sp. n. are given.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 42 , Issue 4 , January 1952 , pp. 697 - 705
Copyright
Copyright © Cambridge University Press 1952

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References

Bagnall, R. S. & Harrison, J. W. H. (1922). New British Cecidomyiidae. 4.—Ent. Rec., 34, pp. 149–154.Google Scholar
Felt, E. P. (1925). Key to gall midges (a resumé of studies I—VII, Itonididae).—Bull. N.Y. St. Mus., no. 257, p. 64.Google Scholar
Wilson, F. (1943). The entomological control of St. John's Wort (Hypericum perforatum L.) with particular reference to the insect enemies of the weed in southern France.—Bull. Coun. sci. industr. Res. Aust., no. 169, 87 pp.Google Scholar