106 



very satisfaetoiy results. It has been found that the time of boiling 

 can be shortened somewhat and the quantit} 7 of lime lessened without 

 impairing the effectiveness of the mixture. There is still a demand, 

 however, for a mixture that can be prepared and applied easily with- 

 out boiling. In a small way the potassium sulphide and lime mixture 

 fulfills these requirements, but it is altogether too expensive for use 

 on a large scale. The potassium sulphide is simply dissolved in water 

 and the lime slaked in separate barrels, and when all lumps have dis- 

 appeared put the two liquids together and sulphides of lime are formed. 

 The proportions used in our experiments were 20 pounds potassium 

 sulphide, 20 pounds lime to 40 gallons of water. 



Eulecanium armeniacum Craw, is becoming quite common in Con- 

 necticut, and is found on a variety of trees. Not only fruit trees are 

 attacked, but white ash trees from the woodlands of Windsor were 

 quite badly infested, and it has been received on ash from West Corn- 

 wall. E. tidipifercz Cook, occurs on Liriodendron, both native and 

 on cultivated grounds. Clvionaspis pinifolice, Fitch has been found 

 several tinies in various parts of the State on Pinus strobus and 

 P. mughus. 



Serious injury to onion fields has been caused by the onion thrips 

 (Thrips tabaci Lindeman), a 3-acre field having been destroyed near 

 New Haven. 



As has already been reported (see Second Report of Connecticut 

 State Entomologist for 1902, p. 174, and Canadian Entomologist, Vol. 

 XXXV, p. 188), the twelve-spotted asparagus beetle ( Crioceris 12-punc- 

 tata Linn.) has been taken a number of times in Connecticut, and 

 may now be considered as having become established here, though it 

 is not as yet very abundant. The larvae and adults of the common 

 asparagus beetle {Crioceris asparagi JArm.) were killed by spraying 

 the plants on the station grounds June 3 with arsenate of lead, 1^ 

 pounds in 20 gallons of water. This adheres to the slender foliage 

 and stems better than most insecticides. 



The elm leaf beetle ( Galerucella luteola Mull. ) did less damage to 

 shade trees than for several years. 



The tent caterpillar (Clisiocampa americana Harr.) was abundant 

 throughout the central and northern portion of the State. The larvae 

 appeared very early (about April 1). 



During August the larvae of Cingilia catenaria were numerous at 

 Terryville and devoured the leaves of sweet fern, huckleberry, 

 sumac, scrub oak, and other low-growing plants. These pupated 

 during the latter part of August, and the adults appeared nearly a 

 month later. These were also very abundant. 



There are good reasons for believing that the Chinese mantid ( Teno- 

 dera [Paratenodera] sinensis Saus.) has been introduced into Con- 

 necticut directly from Japan and has become established here. Egg 



