co prawda tyczy się to much ale zacytuję (
http://www.zobodat.at/stable/pdf/LBB_00 ... 7-0515.pdf):
"The syrup trap used in this study is well known method, used by gardeners to capture
wasps and hornets. The similar type of trap (with wine solution as attractant) was used
for capturing of beetles (ALLEMAND & ABERLENC 1991).
This trap with beer as attractant was used by MÁCA (1973) for capturing of Drosophilidae.
The syrup trap as described below (or similar method) is a new method for collecting
Heleomyzidae or Lauxaniidae".
dalej:
"The trap was a standard pet bottle of 1,5-2 l volume filled with commercial syrup diluted
1:5 by water, with 3 to 5 small pieces of cut fruit (usually apples). A fermentation
process behaved as attractant. The trap was hung from a branch of a tree ca. 1,5 m above
the ground. The only trap was installed on each locality, it was recover every two weeks
and the bait was replaced".
literatura:
ALLEMAND R. & H.P. ABERLENC (1991): Une methode efficace d’échantillonnage de
l´entomofaune des froidansons: le piege atractif aérien. (An efficient trapping method for
sampling insect populations in tree canopies: The aerial attractive trap.). — Mitt. schweiz.
ent. Ges. 64: 293-305.
MÁCA J. (1973): Odchyt druhů čeledi Drosophilidae na návnadu a jeho výsledky. — In:
DIRLBEK K. (ed.), Metody používané při studiu hospodářsky důležitých dvoukřídlých.
Ústav věd.-tech. informací ministerstva zemědělství, Publikace 131., Praha: 58-62.