ECONOMIC ZOOLOGY — ENTOMOLOGY. 559 



T'jton emerjrliiK the adult Itoetli's lu'jjiii to attack f^rowiiif; parts of the vine 

 altove till' Kronnd. souuMinu's tlu' fraiiu'work of the loaf tissues beiiiy left, luak- 

 iiijr a skelotonizetl effect, though often the entire substance is eaten away. The 

 bi-etle also ^ou^es out stri[)S of bark of the tender shoots in the same nianner 

 that it works on the leaves. The berry itself does not escape attacks, as in 

 July berries may be seen that are quite oiten or jroufrcd out on one side and the 

 jrrowth interfcrtHl with as a result of attacks of these beetles in May or June. 

 The beetles may continue to feed feu- a niniith or more. After feedinj: a couple 

 of weeks ran layinj: conunences. 



As the pup:e are found at a depth of 4 to 8 in. below the surface and as any 

 disturbance of the cell in which they are resting will generally prove fatal, 

 many may be destroyed by deep cultivation for a radius of 2 to 3 ft. about the 

 base of the vine. In experiments beetles were killed in from 2 to 'i days on 

 leaves sprayed with lead arsenate in the strength of 5 lbs. to 50 gal. of water. 

 One lb. of I'aris green to 75 gal. of water also gave good results. The spraying 

 should be done during the last of April or the first of May and apjilled mostly 

 from above, as it is on the upper surface of the leaves and the shoots that most 

 of the feeding is done. As the beetles are very readily jarred from the vine 

 into crude petroleum or otherwise captured, this offers one of the most satis- 

 factory means of control. A vine-hopper cage that has been used successfully 

 in one locality is described. A bibliography is appended. 



The effect of sulphur in vineyards upon earwig-s and spiders, E. Molz 

 (.1//.'/. Wriiihiiii II. Krllcnr., 20 ilHOS). .Vo.s. /, /*/*. ',-.0,- ,?, /;/). 2'i-29). — The 

 re|>eated u.se of sulphur in vineyards destroys a considerable ))ercentage of the 

 earwigs. The sul|)hur is not jioisonous to these insects but causes death by 

 stippping up the tracheal system. Moreover the oxidation products of sulphur 

 act as strong repellants in driving away earwigs. Sulphur appears to have no 

 efl'<H-t uixtn spiders. 



Biological studies on bark beetles, C. Hennings (Xaturw. Ztschr. Forst u. 

 Ltnithr., (j (HHJS), Xo. //, pp. 209-229). — The author presents biological and 

 economic notes on a number of important beetles including Hj/lcsiiiiis crciiatus, 

 II. fni.rhii, Ips (j/pofpaphiifi, I. acinniniitiis. and /. ciirridrns. 



On some Assam Sal (Shorea robusta) insect pests, E. P. Sterbino ( [Iii- 

 <liiin\, I'ttnst liiil. II, pp. IH-\-li(!, pis. S). — The insect ju'sts of Sliorcd robusta 

 an- discussed in detail, the pests being classified according to the part of the tree 

 to which they do damage. In the case of each forest pest, notes are also given 

 on tlieir predaceons and parasitic enemies. The more important species con- 

 sidered in the bull(>tin are Iloploccnnnhi/.r spinicoruis, Dhildf/cs piiitpcr. PhUtitsi- 

 uiis nmjnr, and sjK'cies of Xyleborus, Tomicus, (iryllus. and I.yniantria. 



The development of diptera in the brood chambers of Myelophilus pini- 

 perda, H. Ki.iim; USfilin. Hut. Ztschr.. ')2 {1901). \i,. .?. pp. 1091 hi). — 

 Minlitpliiliis piiiiprnlii is a beetle which makes its burrows between the bark and 

 the cambium of weakened sitecimens of J'iiiiis sytrcstris. In studying the in- 

 juries caustHl by this insect the author found that at least 3 species of tlies 

 <pdte commonly Itreed in these galleries. These si)ecies are Mcdctcrus ohsciinis. 

 SHfirn «»/////.>(. and LnnclKra raf/iiiittis. It is not determined whether these Hies 

 live in a parasitic or some other relation to the beetle. 



Chionaspis euonymi. L. F.mhiikron (Hut. I/ch.v. Snr. ('int. .\(/r. llorl. ct 

 .inliiii. .Vice. ',,s (I90S). \i,. ,{. pp. 7.7_7,S) .— The Jai)anese euouynuis is badly 

 InfestiHl witli CUiotnispiH vnonyiiii. A brief account is given of the life history 

 of this insect and suitable inscctici<le treatment is recommended. 



Injury to Ampelopsis quinquefolia by Spilosoma lupricipeda. E. .Moi-z 

 (Ztxrin: I'fliinznikrauk., tH (I90S), \o. 2, pp. 92-9.'i. fiffs. »M.— The author ob- 

 served that the \'irginia creeper is freipiently injured to a serious extent by the 



