ECONOMIC ZOOLOGY — ENTOMOLOGY. 857 



The tryphonine ichnenmonid Exenterus lophyri is said to be a powerful 

 enemy of this sawfly. Out of 60 cocoons containing larvfe July 13, 30 were 

 found to be parasitized, this representing 35 per cent of 85 cocoons examined. 

 Two other ichneumonids, namely, Phygadeuon {Ma-strus) neodiprioni and 

 P. (Batliymetis) patulus, were I'eared but were not seen in the field and are 

 thought to be of inconsequential importance. Several species of tachinids were 

 found in the infested locality, the most common of which was Euphorocera 

 claripenrbis. This species emerged July 1 and 8 from 2 larvae which spun up 

 June 11. An undetermined bombyliid emerged July 25 from a cocoon collected 

 July 8. 



Other natural enemies mentioned are chipmunks (Eutamias pallidus), the 

 mountain pine grosbeak {Pinicola enucleator montana), and western tanager 

 (Ptraiiga ludoviciana). A bacterial disease caused the death of many of the 

 larvae. 



No practical means of artificial control has been suggested. It is pointed out 

 that burning over the grass and fallen needles in the fall would control but 

 partially as this species spins its cocoons chiefly in the ground where it would 

 be out of reach of the fire. Observations indicate, however, that the outbreak 

 is being brought under control by the natural enemies. The author considers 

 it probable that the affected area will not be further extended and that the 

 injury will distinctly abate in intensity during the next season or two. 



Some new species of reared ichneumon flies, H. L. Viebeck (Proc. V. S. Nat. 

 Mus., 39 {1911), pp. JfOl-JfOS). — Eleven genera and as many species are de- 

 scribed as new to science, namely: Meteorus loxostcgei, bred from Loxostege 

 sticticalls, at Rocky Ford, Colo. ; Schizoprymnus phillipsi, bred from timothy, 

 at Richmond, Ind. ; Chelonus shoshoneanoruni, probably parasitic on Argy- 

 rcsthia sp., at Colorado Springs, Colo. ; Apanteles hctheli, parasitic on Argy- 

 resthia sp., at Colorado Springs, Colo. ; Microgaster comptanw, bred from 

 AticyJis comptana, at Rocky Ford, Colo. ; Heterospilus mordellistenw, parasitic 

 on Mordellistena ustulata, at Wilmington, Ohio; Limnerium (Horogenes) dis- 

 coocellellw, bred from Gelechia discoocellellw ; Extenterus lophyri, reared from 

 Lophyrus townsendi, at Crawford, Nebr. ; Phygadeuon {Mnoplex) argew, reared 

 from the cocoon of a species of (Hylotoma) Arge, at Marietta, Ohio; Phy- 

 gadeuon (Polytribax) pallescens, reared from the chrj'salis of Hyphantria, and 

 of Eitdamus (Epargyrcus) tityrus at Castle Rock, Fa.; and Mesochorus per- 

 niciosus, bred from Loxostege sticticalis, at Rocky Ford, Colo., and probably a 

 hyperparasite of Apanteles Ucviceps. 



Notes on some parasites of Agrotis segetum, N. Kuedjumov {Russ. Ent. 

 O'bozr., 11 {1911), No. 1, pp. 48-53). — The parasites noted are Oophthora sem- 

 tlidis, Gonia capitata, and Cnephalia sp. 



On tlie parasitic Hymenoptera collected by Mr. A. J. T. Janse, Transvaal, 

 P. Cameron {Ann. Transvaal 2Iiis., 2 {1911), No. 4, pp. 173-217). — This paper 

 presents descriptions of a large number of new genera and species of parasitic 

 Hymenoptera, together with records of the hosts of a number. 



Contributions to the knowledge of the Chalcididfe of Italy, L. Mast {Bol. 

 Lai). Zool. Gen. e Agr. R. Scuola Sup. Agr. Portici, 4 {1910), pp. 3-37, 'figs. 29; 

 5 {1911), pp. 140-171, figs. 11). — In continuation of 2 papers previously noted 

 (E. S. R., 22, p. 760), the third paper of the series includes descriptions of 6 

 new species, and the fourth of a new genus (Merisoides) and 6 new species of 

 chalcidid parasites. 



Contributions to the knowledge of the parasites of the olive fly, F. Sil- 

 vestbi (Bol. Lab. Zool. Gen. c Agr. R. Scuola Sup. Agr. Portici, 4 {1910), pp. 

 295-306, figs. 6). — Accounts are presented by G. Martelli on the biology of 



