Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 53. (Budapest 1961)

Móczár, L.: The distribution of wild bees in the lucerne fields of Hungary (Hymenoptera, Apoidea)

Vogt. 0,86%, Bombus hortorum L. 0,66%, Halictus fasciatus Nyl. 0,53%, Andrena variabilis Sm., Halictus maculatus Sm. and Tetralonia tricincta Er. 0,41%, Halictus rubicundus Christ, and Rhophites canus Ev. 0,32%, Rhophites 5-spinosus Spin., Tetralonia hungarica Friese and Tetralonia arménien Mor. 0,29% each ; and some other 44, or a total of 68, species. Now, if we again omit the listing of partial data, and apart from summarizing the data received from the whole area of the country, we examine the frequency relations of the dominant and subdominant species of the respective areas, we arrive at the following picture : Dominant species : Eucera clypeata in 7 areas (Hanság, Corns. Fejér, Somogy, the Kiskunság, Nagykunság, and Com. Békés) ; Melitturga clavicornis in 1 area (Com. Baranya) ; Subdominant species : Melitta leporina in 8 areas (in the whole territory of the country) ; Andrena ovatula in 4 areas (Corns. Fejér, Baranya, the Kiskunság, Nagykunság) ; Andrena flavipes (Nagykunság), Halictus eurygnathus (Com. Békés), Eucera cinerea (Com. Somogy), Eucera pollinosa (Hanság), and Halictus euboeensis (Com. Békés) in one area each. Of the species (dominant and subdominant) composing the preponderant part of the stock, the following ones are the most prominent : Melitta leporina in 8 lucerne fields (in the whole area of the country) ; Eucera clypeata in 7 areas (everywhere, with the exception of Com. Baranya) ; Andrena ovatula in 4 areas (Corns. Fejér, Baranya, the Kiskunság and Nagykunság). Due to some extraneous causes, there were, unfortunately, no surveys in the Hajdúság. We may now conclude that the dominant and subdominant species were the same in 1955 as in 1954 ; the differences are hardly substantial. The survey results of 1956 The surveys of the third year of the series were done in lucerne fields similar to the former ones, namely : I. Hanság (Fertőd), 10 days between 19 July

—7 August, collector A. G i m e s i. — II. Com. Fejér (Martonvásár), 20 days, between 11 July—

21 August, collectors R. M á d y, B. Dolinka, A. G i m e s i. — III. Com. Somogy (Balatonendréd), 11 days between 10 July

—1 August, coUector L. M ó c z á r. — IV. Com. Baranya (Keresztespuszta), 7 days between 12—19 July, collectress K. D e s e ő. — V. Kiskunság (Kecskemét), 10 days between 5 — 14, July, collector L. Vas-Borosi. — VI. Com. Csongrád (Szeged), 9 days between 8 — 17 July, collector Gy. Csongor. — VII. Nagykunság (Karcag), 10 days between 19 — 31 July, collector I. Csontos. — VIII. Hajdúság (Debrecen), 11 days between 27 July—

6 August, coUector L. S z û c s, — IX. Com. Békés (Székkutas), 10 days between 7 — 16 July, collector V. Szandtn e r ; 5 days between 28 July—

2 August, coUector, R. M á d y ; (Bánkút), 14 days between 11—-25 July, collector R. M á d y, and in (Szarvas), 10 days between 4—16 August, collector S. S z ő n y. We collected 3464 specimens in 11 lucerne fields, in 127 hours between 5 July — 21 August on the summer of 1956. If the several collectings be examined in their totality, we find that the composition of the dominant and subdominant species is generally similar to those of the earlier years, but it shows a greater variation in details. As related to all lucerne fields, the dominant species is Melitta leporina Pz. 21,88% ; Subdominants : Eucera clypeata Er. 18,76%, and Andrena ovatula K. 17,99% ; other species : Bombus lapidarius L. 4,68%, Halictus eurygnathus Bliithg. 4,53%, Eucera pollinosa Smith. 4,42%, Bombus terrestris L. 4,16%,, Melitturga clavicornis Latr. 3,03%, Eucera cinerea Lep. 2,77%, Eucera nitidiventris Mocs. 2,69%, Rhophites canus Ev. 1,96%, Halictus rubicundus Christ. 1,36%, Halictus calceatus Scop. 1,24%, Rhophites