203 



Amendment No. 13 (No. 1 of 1922) to the Regulations mider the 

 Destructive Insect and Pest Act. — Canada Dcpt. Agric, Ent. 

 Branch, Ottaim, 14th February 1922. [1 p., MS.j 



By an Order in Council passed on 7th February 1922, the following 

 are added to Section 18 of the Regulations under the Destructive 

 Insect and Pest Act : — Popillia japonica, Newm. (Japanese beetle) ; 

 EpilacJma cornipta, Muls. (Mexican bean beetle) ; Cylas formicarius, F. 

 (sweet potato weevil) ; Stilpnotia salicis, L. (satin moth) ; and Eriop/iyes 

 ribis, Nal., E. avellanae, Nal., and E. vermiformis, Nal. (hazelnut 

 blister mites). 



Fahringer (J). Beitrage zur Kenntnis der Lebensweise einiger 

 Chalcididen. [Contributions to the Knowledge of the Habits of 

 some Chalcids.] — Zeitschr. wiss. Insektenbiol., Berlin, xvi, 

 no. 11-12, 1921, pp. 228-235, 3 figs., & xvii, no. 1-2, 15th 

 January 1922, pp. 7-13. 



These are the first two portions of a paper on Chalcid parasites 

 issued as a result of breeding experiments. The species dealt with 

 are chiefly parasites of Cynipids. 



Ahlberg (O.). Zur Identitatsfrage von Trichothrips pint, Halid. 

 [On the Identity of T. pini, Halid.] — Ent. Tidskr., Stockholm, 

 xhi, no. 2, 1921, pp. 107-111, 3 figs. [Received 13th February 

 1922.] 



Phloeothrips pini, Hal., has been accepted for many years as distinct 

 from Trichothrips ulmi, ¥., but the author gives reasons for treating 

 it as nothing more than a larger form of T. ulmi. T. ulmi, F., therefore 

 has the following synonyms :— fungi , Zett., pini, Hal., aptera, Duf., 

 and parvipennis, Rent. 



T. tdmi is known only from Sweden, Germany, Finland and 

 England. In Sweden it is one of the commonest bark thrips, being 

 found in numbers under bark in late summer and in autumn. 

 Only winged females occur in summer, and these appear to reproduce 

 parthenogenetically. 



Spessivtseff (P.). Beitrag zur Kenntnis der Borkenkaferfauna 

 Schwedens. [A Contribution to the Knowledge of the Bark Beetle 

 Fauna of Sweden.] — Ent. Tidskr., Stockholm, xlii, no. 3-4, 1921, 

 pp. 219-223. [Received 13th February 1922.] 

 Pityophthorus trdgdrdhi, sp. n., is described from specimens taken 

 in July 1921 from crown branches of fallen spruces in North Sweden. 

 Both the mother galleries and those of the larvae are very superficial 

 and do not touch the sapwood, but the pupal chambers leave unmis- 

 takable, though shallow, traces in it. 



Examples of Ips duplicatus, Sahib., from pine and spruce in August 

 1921, were females engaged in oviposition and in mining stems felled 

 in June ; /. typographus occurred close by. As the spring had been 

 early and warm they probably belonged to the second generation. 

 It is improbable that they resulted from an accidental importation 

 from Finland or Russia. I. duplicatus is very rare in western Europe ; 

 in eastern Europe it almost always occurs together with /. typo- 

 graphus, replacing /. amitintis, Eich. In North Russia /. duplicatus 

 has often been confused with /. typographus ; the differences between 

 the two species are described. 



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