341 



are being undertaken. The large European Carabid beetle, Calomyna 

 sycophanta, has been introduced into the State to destroy gipsy moth 

 caterpillars, and appears to have become established and well dis- 

 tributed. Saperda concclor, Lee, var. nnicolor, Joutel, has long been 

 known as a borer in the small stems and branches of poplar and certain 

 willows. The eggs of this beetle are laid in May in an incision in the 

 bark ; the larvae at first eat out a cavity under the bark and then 

 construct a transverse tunnel, partially girdling the twig or branch, 

 galls frequently forming at the injured points. There is only one 

 generation in a year, the insect pupating and wintering in the burrows 

 inside the twigs. A Phycitid moth, Tetralopha robusfella, Z., was 

 observed in October feeding on white pine. The larvae live in silken 

 tubes extending through a globular mass formed of excrement. The 

 life-history has not been worked out. 



Brixton (W. E.), Davis (I. W.) & Ashworth (J. T.). Suppressing 

 the Gipsy and Brown-taii Moths. — 18lh Rept. Connecticut State 

 Entomologist for 1918, Conn. Agric. Expt. Sta., New Haven, Bull, 

 no. 211, 1919, pp. 272-290, 1 fig. [Received 5th June 1919.] 



The work of previous years has been continued [see this Review, 

 »Ser. A, vi, p. 458], except that on account of scarcity of labour it has 

 been found necessary to rely more upon spraying and to curtail some- 

 what the scouting operations. During the year, seven new towns 

 have been found slightly infested and a map of the State shows the 

 areas infested by the gipsy moth [Porthetria dispar] and the brown- tail 

 moth [Nyginia phaeorrhoea^ and the areas quarantined on account of 

 these infestations. The details of work in various towns are given and 

 are summarised in a table. The brown-tail moth has been remarkably 

 .scarce during the past year, so that control measures have been unneces- 

 sary. An appeal is made for further appropriations for future work. 

 It is pointed out that extermination of these pests is extremely impro- 

 bable, if not impossible, with" the present scale of appropriations, and 

 that the successful work already accomplished would not have been 

 possible without the hearty co-operation of the Federal Bureau of 

 Entomology, which has expended in Connecticut each year an amount 

 approximating to that expended by the State. It is needless to remark 

 that the whole of the State would soon become thickly infested if 

 provision were not made for holding the pests in check. 



Britton (W. E.) & Zappe (M. P.). Record of Treatments in an 

 Attempt to control the Striped Cucumber Beetle, Diahroiica vittaiay 

 Fabr. — ISth Rept. Connecticut State Entomologist for 1918, Conn. 

 Agric. Expt. Sta., New Haven, Bull. no. 211, 1919, pp. 290-292. 

 [Received 5th June 1919.] 



Treatments in continuation of the tests made in previous years 

 [see this Revieiv, Ser. A, vi, p. 459] are summarised in a table ; of the 

 substances tested the following were effective in controlling Diabrotica 

 vittata, F., and are given in the order of their effectiveness. Lead 

 arsenate and powdered sulphur in ccjual parts dusted on both sides of 

 the leaves caused no injury and very few beetles were found after 

 treatment. Lead arsenate alone was fairly effective. Dry Bordeaux 

 mixture, where it did not wash off, seemed to prevent injury by the 



