Department of Zoology, University College, Trivandrum-695 034, Kerala, (India).
1Present address: Central Plantation Crops Research Institute, Kayangulam-690 533, Kerala, (India).
An electrical aspirator handy to use has been fabricated for damage-free field collection of the lace bug, Stephanitis typica Dist. (Heteroptera: Tingidae). It consists of a 12 V motor holding a fan on the shaft housed in a plastic cylinder with a narrow mouth which is connected to a collection tUbe through a rubber stopper. The motor is operated by two 9 V batteries. Aspirator works on the principle that whenever there is a pressure difference in a system, the air flows from the region of higher pressure to the lower pressure region, thus creating a force of suction.
