. The Entomologist's record and journal of variation . l from the illustration in the Observerss Book ofButterflies. — Miss Janet Weir, c/o The Editor, The Ento-mologists Record and Journal of Variation. A New Trap for Carrion Flies 219 By Y. Z. Erzinclioglu* In studies of the faunal succession of Diptera and otherinsects on animal corpses it has usually been the method toapproach the corpse stealthily, and then sweep the flies witha net. This method is not very satisfactory, for two , it is impossible to collect all the flies present as manyspecies are very wary and will easily
. The Entomologist's record and journal of variation . l from the illustration in the Observerss Book ofButterflies. — Miss Janet Weir, c/o The Editor, The Ento-mologists Record and Journal of Variation. A New Trap for Carrion Flies 219 By Y. Z. Erzinclioglu* In studies of the faunal succession of Diptera and otherinsects on animal corpses it has usually been the method toapproach the corpse stealthily, and then sweep the flies witha net. This method is not very satisfactory, for two , it is impossible to collect all the flies present as manyspecies are very wary and will easily avoid capture. Secondly,the net will only sample those flies present on the corpse atthe time it is approached: many individuals will have visitedthe corpse and left it earlier in the day. For these reasons,I have devised a trap which will collect the great majority offlies visiting a corpse. This trap is intended primarily for usewith larger corpses as there are already in existence traps foruse with smaller corpses and carrion bait (Dear, 1978).. The trap is essentially a wooden frame 75cm long x 45cmwide X 35cm high. On both broad sides there are 2cm wideslits extending for almost the whole length of the sides. Theslits are 5cm above the ground. The top of the trap is coveredwith fine muslin which is nailed down along most of its lengthexcept for one end where it is fastened by bands to a row ofhooks (see figure). The trap is placed over the corpse and theflies enter it through the slits and become trapped inside. Inorder to collect the flies, the flap of muslin on one side isunhooked and turned back. The smaller flies can then bepootered with a blow-pooter. (The use of the blow-pooter isessential for hygienic reasons). The larger flies can be caughtwith jars and assorted tubes. An important feature of thistrap is that no knock-down agent is necessary. In the smallertraps ammonia vapour is used as it is said not to taint thebait. However, the use of knock-down agents is b
Size: 2035px × 1227px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherslsn, booksubjectin
