144 



SiHLER ( — ). Die Gespinstmotte, Hypoiiomenta enonyinellus, und ihre 

 Tatigkeit als Papiermacherin. [H. euonymellus and its Work as 

 a Paper Maker. ^ — Jahrcsber. Ver. f. vaterl. Naturk. i. Wiirttem- 

 berg, Ixxvi, 1920, Sitz.-Ber., pp. 24-27. 



Stehli ( — ). Die Gespinstmotten. [The Web Moths.] — /Cosmos, 1921, 

 p. 25. (Abstract in Ccntralbl. Bakt. Paras. Infekt , Jena, lite 

 Abt., Iv, no. 14-20, 18th January 1922, p. 421.) 



In cases of severe infestation by Hyponoineuta euonymellus the web 

 in which the entire tree is wrapped resembles paper and does not 

 tear easily. Hymenopterous parasites and the Tachinid, Pvosopodes 

 fugax, are important enemies of this moth, and the destruction of 

 the webs entails that of P. fugax, which is a parasite of the second 

 generation of the vine moths [Clysia ambiguella, Hb., and Polychrosis 

 botrana, Schiff.] [R.A.E., A, v, 97]. In vine-growing districts the 

 planting of Euonymus should be encouraged. 



Faber (F.), Fischer (G.) & Kalt (B.). Die biologische Bedeutung 

 des Rapsglanzkafers fiir Raps, Riibsen und Senf. [The biological 

 Importance of the Rape Weevil on Rape, Turnip and Mustard.] 

 —Landw. Jahrb., 1920, pp, 681-701, 5 figs , 1 plate. (Abstract 

 in Centralbl. Bakt. Paras. Infekt., Jena, lite Abt., Iv, no. 14-20, 

 18th January 1922, p. 452.) 



The authors' investigations show that the larvae of the rape weevil 

 [Meligethes aeneus, F.] only favour the fertilisation of plants inasmuch 

 as they distribute the pollen when moving about. The adults, both 

 of the first (hibernated) and second generations, may favour self- 

 fertilisation. On the other hand, the adults of the second generation 

 injure the reproductive organs, especially when' they appear at the 

 time that the chief blossoming period of Cruciferous plants occurs. 



Urban (C). Die Nahrungspflanzen der Ceuthorrhynchus. [The Food- 

 plants of Ceuthorrhynchus. ^ — Ent. Blatter, Berlin, xvii, no. 1-3, 

 30th March 1921, pp. 19-22. [Received 17th January 1922.] 



The food-plants of over 100 species of Ceuthorrhynchus and a few 

 other weevils are given in this paper. 



Eggers (H.). Seltene und neue palaarktische Borkenkafer. [Rare 



and New Palaearctic Bark-beetles. 1 — Ent. Bldtlcr, Berlin, xvii, 



no. 1-3, 30th March 1921, pp. 39-43, 1 fig. [Received 17th 

 January 1922.] 



Cryphalus pini , sp. n., is described from Kiaochowin Pinus densifiora ; 

 it somewhat resembles C. redikorzevi {R.A.E., A, v, 511]. Ips 

 tridentatus, sp. n., from the Taurus, is related to /. erosus, Woll. 



Though pines are common in Gemiany, Ips longicollis, Gyll., is 

 known to the author only from Alsace and Silesia. The reason for 

 this pecuUar distribution lies in the fact that infestation is apparently- 

 confined to large, standing trunks that have begun to die. /. longicollis 

 has never been found in small trunks or in those lying on the ground, 

 even where such timber is abundant and infested by /. sexdentatus, 

 I. proximus, I. laricis and /. acuminatus. In German forests such 

 large, valuable timber is not allowed to die gradually, so that conditions 

 favourable to /. longicollis are not created. 



