ECONOMIC ZOOLOGY — ENTOMOLOGY. 755 



moth, wliich lias .since been desciibetl as Plorltoryclis tsugrm^if^, was found in 

 some niinibcrs on Japanese hemlock. A scale insect, similar in size and appear- 

 ance to the San Jose scale, but wliich ajtpears to be nndescribed. was also found 

 on Japanese hemlock. .Mention is made of the possibility that the European 

 red-tail (Da.sycliira pudihunda), n moth widely distributed in continental Eu- 

 rope and. parts of Asia which frequently defoliates entire forest areas and is 

 recofjnized as a first-class pest, ranking with the gipsy and brown-tail moths, 

 has obtained a slight foothold in this country. This moth, which was first 

 collected in Bergen County, N. Y., in IDOS, was also taken in 1000, but was not 

 met with during the inspections of 1010. It is a general feeiler on deciduous 

 trees of all kinds but favors the beech. Mention is also made of the collection 

 of a European coccinellid in one nursery. Among the other insects mentioned 

 are the shot hole borer, which was the source of considerable Injury to peach 

 trees; the grape-berry moth, which was unusually injurious; the pear psylla; 

 and the pear midge, of which there was quite an unexpecte<l recrudescense. A 

 slight infestation of Lawrence pears by the pear midge i-esulted in their matur- 

 ing in a twisted and deformed shape. In the opinion of the author the San 

 Jose scale is on decline so far as its destructiveness is concerned. 



The strawberry weevil was the source of considerable injury in Cumberland. 

 County and some sections of Cape May County. Observations and experiments 

 with the peach borer and plum curculio are reported. Among the apple insects 

 mentioned are the apple leafhopper, codling moth, yellow-necked caterpillar, 

 and green apple worm (.Ay///i« sp. ). 



Shade and forest insects, the occurrence of which is mentioned, include the 

 elm leaf beetle: elm plant louse; white-marked tussock moth; maple false scale 

 (Pseudococcus accris) ; cottony maple scale; tulip soft scale (Lccamum tiiHp- 

 ifera) ; a leaf beetle {Lina scripta) on poplar, which was unusually destructive 

 in nurseries and defoliated many of the smaller trees; the hickory bark beetle; 

 bronze birch borer (Agriluft anxitis) ; two-striped chestnut borer (A. hilinratus) ; 

 giant root borer (Prianus laticoUis) ; golden oak scale (AsterQlecanium quercir 

 K.'oIa) ; periodical cicada ; Chermes on conifers; etc. 



Brief notes are also presenteil on the several insects injurious to field crops. 

 Root maggot observations, by E. L. Dickerson (pp. 353-358), are incorporated 

 in the report. Root maggots were found during the year to develop in wild 

 radishes, thus indicating the desirability of keeping these plants in check. All 

 the specimens reared to adults from wild radishes were Pieris brassicw. Indica- 

 tions point to the fact that while some of the flies live through the winter and 

 oviposit in the spring, hibernation may take place in any of the larval or in the 

 pupal stage. The Chinese mantid (Tenodera sinensis) was found at several 

 points in the State where it had been introduced. 



Under the heading of insecticides, analyses made of the brands of arsenate 

 of lead offered for sale in the State are reported. A brief account is also given 

 of tests of atomic sulphur, arsenate of iron, blackleaf 40, Nico-sul, and soluble 

 oils, including vacuum oil, Carbolene, Scalecide, U-neek mixture. Spray-on Scale- 

 off, and soluble parafl^n. 



[Sixth annual report of the department of entomology and zoology], 

 C. J. S. Bethune {Ontario Agr. Col. and Expt. Farm Rpt. 1911, pp. 25-^3). — 

 The author mentions the occurrence in the Thunder Bay district of an army 

 of black cutworms, which devoured vegetation of all kinds and completely 

 destroyed the crops attacked ; the serious infestation of grain bins by the saw- 

 toothed grain beetle {Silvaniis surinamensis) ; the work of the predaceous bugs 

 Perillus hiocvlatus and P. claudus, which in both adult and nymph stages feed 

 upon the eggs, larvse, and mature forms of the Colorado potato beetle and in 

 67421°— No. 8—13 5 



