1901 ENTOMOLOGICAL SOCIETY. 27 



appeared in great numbers, about the same time there also appeared three species of Chalcis flies, 

 the larger species appeared first and numbered fifteen specimens in all ; then followed two other 

 species much smaller in size of which there were forty-five specimens of one, and twenty-three 

 of the other. No more of them making their appearance, after a few days, the jar was put to 

 one side and overlooked for a time ; however, on the 11th of August, other prisoners were ob- 

 served the majority of them being dead but in two or three instances they were alive ; 

 these proved to be Hyperaspis four males and seven females of prvba and one female of signata. 



When examining the canes on the sixth inst. in Mr. Arnott's garden, it was noticed that 

 some of them presented a peculiar appearance from the ground upwards, as if they were covered 

 with a white fungus, upon close inspection they were seen to be scale insects of a species un- 

 known to the writer, samples of which are herewith presented. 



Since presenting the foregoing rei)ort Dr. Fletcher has very kindly obtained the names of 

 the parasites, etc. 



The small white scale above referred to, found on the blackberry, is the Rose scale {Aula- 

 caspls rosct, Bouche, sometimes called Diaspis roste). Dr. Fletcher remarks that, this is a very 

 bad pest. 



The jjarasitic tlies have been identified at Washington, D.C., as follows : No. 1, Encyrtus 

 (Coniys) fusms. How. No. 2, Aphycus annuUpes, Ashm. No. 3, Blastothrix sp. 



The following additional species were obtained from the blackberry canes sent from Tren- 

 ton to Ottawa. No. 4, Microterys, sp. male. No. 5, Coccophagus flavoscutellum, Ashm. No. 7, 

 Ev.stodius .nintliotlwrax, Ashm. Dr. Fletcher says of this last, "a Mymarid described 15 years 

 ago in Can. Ent. vol. 19, 1887, p. 193. This is an exceedingly minute creature which Mr. 

 Guignard found in sorting out the material " and as reported by Mr. Ashmead, " it is the second 

 specimen seen." 



The fungus found infesting the Lecanium Prof. Roland Thaxter says "is evidently an im- 

 mature Cordiceps of some sort, I thought at first G. clamdata, but the conidia are not those of 

 that species." 



Division No. 4. — Hamilton District. — By James Johnston, Bartonville. 



We have had two very troublesome insects in this district this season, the Hessian fly 

 {Cecidomyia destntctor Say.) and the potato beetle {Doryphora 10-lineata Say). 



The work of the Hessian fly was so great as to entirely ruin whole fields of wheat. I 

 have seen fields that looked well and promising last fall and in the early spring so badly ruined 

 as to render them not worthy of being harvested. The early sewn fields were where the flies 

 seemed to work the most destruction. The folks on this farm were so discouraged that they 

 have sown rye instead of wheat this fall as a means of checking them. 



About the beginning of June the general complaint was about the ravages of the potato 

 beetles amongst the tomato plants. During my experience this has been a record year for these 

 pests. One morning in early June four of us started to put out tomato plants where no beetles 

 were to be seen, but after dinner they were so numerous on the plants set out that we had to 

 leave ofi' planting and turn to hand-picking the beetles. We found from one to thirty-seven on 

 individual plants, so that an idea can be formed of our task A going over 18,000 plants, a task 

 that had to be repeated for several days. If they would show themselves our work would not 

 be so extensive, but the plagued things hide themselves away under lumps of earth when not 

 feeding, so that it is necessarj' to be daily on the lookout for them. 



The following are the only insects new to this district that I have to report for this year : — 



As early as February a specimen of Anthreiuis scrophnldrlae, Linn., was brought to me 

 from a neighbor's house and later on I came across several. 



