Acta Zoologica Academiae Scientiarum Hungaricae

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mines

tremulae Z

mines

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Species Localityos collectingDate os collecting

20 Oct. I953 1231

20 Sept. I954 2214

25 Sept. I9S22 III 2529

Loranthus Normasa, BP.

8 Oct. 19541432

23 June 195416 Aug. 195426 July I95568

71261

28 Iuno 195612 31Filipendula

27 Sept. 1954288

20 Oct. 195313 9

27 Oct. I95412015

16 Oct. 195228 9

Fragaria Setur

21 Aug. 1954209

18 Aug. 1954412

ΙΙ Oct. I95426 10

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Species calityos collectingDate os collecting

checlud

ι Food plant

23 Sept. I9564

Sanguisorba Romaisurdo,

2 July I95633

I 6 Aug. I95621

Ι2 Oct. I95228 2

Ι2 Oct. I95315

pinnata

Zugliget. BP. 4 Sept. 1956841

22 Sept. I954511

6 Oct. I95025 182

I6 Oct. Ι9525622 26

27 Sept. 19542019

27 Oct. 1952 168 I

I 6 Aug. I95260591

Hypericum

acutum

I0 Oct. I9561542

18 Aug. 195418 112

pubescens hemargyrella ΚOLL. Normala, BP.

12 June Ι9542682

I June 1953 122

9 June 19542996

26 July 195527 1610 June 1957 31

5 June 195613 IT

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28 June 195663

29 Sept. I956612mpuIus tremula splendidissimeIIa Η. CH.

sed, istand10 Oct. 195612 16

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Apari hom the Lithocolletis and Septicula species, I have reared ichneumon fites also Dom Other mining Lepido Ptera, but, With the exception Os One, I do not dispose of exact data and notes. My sole numerical data refer to the

by the rearing of mining mollis. First of ait, most Lithocolletis species suffer much Dom ichneumon fites; their stock-inhibiting effecis is best demonstrated by the faci that almost 40x of the examined III 8 mines were infected by them. The parasites of LithocoIIetis species belong preponderantly to the Chalcidids ; I found Braconids only in the case of SO me seW Species. There WaS, howeVer, a Strong Braconid infection among L. comparella Z., L. froelichiella Z., and L. hleemannella F. Otherwise, Ι found Braconids in the mines of onlyL. Iantanella SCHRK., L. salicicornelia SORII., and a L. species son MaIusin. With regard to ali other species, Ι found Only Chalcidids, helice the parasites of Lithocolletis come o ut of mostly Chalcidid species Whilst Braconids hec omebut rarely important inhibitors of Lithocolletis.

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It is also very instructive to study the specific number of ichneumonflies Dom any given Lithocolletis species. The rearings Os severat authors resulted in most interesting data. It waS found , namely, that so me of the Lithocolletis species are parasitiZed by numerOUS ichneumon sties. Thus, as also

to take into consideration the faci that, of the Braconids, I did not preserve ali specimens especialty in earlier times) and also that the majority of the animais were identisied but to a generic levet. Be as it may, it is stili instructive that I succedod to receive but three Chalcidid species both Dom Leucoptera Iotella SΤΤ., and PDIIocnistis xenia ΗΕ R., though Ι reared a large number of

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Achrysocharis ovulorum RATZB. : Nepticula Ap. ex Quercus 2. Febr. 1954.