PROCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 943 



very marked — those patches which have been painted on regularly 

 for a long time proving much more attractive than new patches. Cold,, 

 windy, or moonlight nights are usually less productive. 



The Andres-Maire trap, used for the control of Agrotis ypsilon in 

 India is a special form of sugaring, which otherwise seems scarcely to 

 have been tried in India, although it seems worth a trial in suitable 

 localities. 



Attraction by sight may be used for the capture of some insects, 

 such as some butterflies which normally fly high up out of reach. Hebo- 

 mpia glaucifpe, for example, may be attracted by pinning a roughly- 

 coloiu'ed paper model in a convenient situation below the trees afiected 

 by this butterfly and, as soon as a specimen has been caught in this 

 way, it may be substituted for the paper model in order to attract further 

 examples. 



Some years ago. Dr. H. G. Knaggs described in the Entomologist 

 (Vol. XX\7, pp. 1.54-157, 180-182, 207-210 (1893)) a working model 

 of an artificial decoy butterfly, of which the main idea can be grasped 

 from the two figures reproduced here. (Plate 146, figs. 1, 2). An 

 imitation butterfly, or the wings of a real one, is glued on to two 

 pieces of card cut roughly to the shape of the wings and these cards 

 are worked up and down by pulling on strings attached to a piece oi 

 watch-spring fastened under each card, so that an imitation of a 

 butterfly's action in opening and shutting its wings when at rest is 

 thus secured. The model is fastened to a screw which can be seciu-ed 

 into a wooden stake driven into the ground in any convenient situation. 

 Any butterflies attracted may either be caught in an ordinary net 

 or the decoy may be supplemented by a spring net, on the lines of a 

 bird-catching net, worked by a second string from the same distance as 

 the decoy. 



Light exercises a very powerful attraction in the case of many night- 

 flying insects, a fact which fs only too well-known to all dwellers in 

 India, and which may be taken advantage of to increase the collection. 

 Many insects, which fly in to the ordinary house lights, will form welcome 

 additions to the collection and special methods can be adopted to 

 increase these numbers by the use of a powerful lamp with a white 

 screen placed behind it in order to increase its attractive power and to 

 provide a suitable resting-place for the insects so attracted. Or an 

 unused room may be used as a trap, a light being left burning in it all 

 night and suitable precautions taken to exclude toads, bats and other 

 insectivorous animals. 



Special light-traps, which can be placed anywhere, may also be 

 used. Some of these require the attention of the collector and some 



