ENTOMOLOGY. 149 



The following: recommendatious are made: A few Lawrence trees 

 should be planted as a i)artial protection for the other varieties, and 

 where possible the infested pears should be picked oft" and destroyed. 

 If the attack is general the soil should be cultivated and rolled not later 

 than the last week in May, and about the middle of June 1,000 lbs, of 

 kainit to the acre should be applied over the full extent of the ground 

 covered by the branches. In August crimson clover shonld be sown to 

 use up the surplus potash, and the crop turned under deeply early the 

 next spring. 



Report on an investigation of bee diseases, R. Helms {Agl. Gaz. 

 N. 8. ir., 5 [1804), pt. 4, pp. 256-306). — A report on an investigation of 

 bee paralysis and depilating disease. The symptoms of the diseases 

 are described and experiments for prevention and cure detailed. Dis- 

 infecting the stands and hives by heat is advised. In the case of bee 

 paralysis the bees are purged by means of mixing tincture of podophyl- 

 lum with the honey fed them (1 fluid oz. to C lbs. of food). The hives 

 are then closed for several hours, after which the bees are excited by 

 spraying with diluted oil of cinnamon and driven from the hives into 

 the 0}>en air. Every tliird or fourth day thereafter si)raying is to be 

 done with a one half per cent solution of carbolic acid. The depilating 

 disease is considered due to Bacillus gaytoni. iS'o remedy is suggested. 

 Both diseases are probably contagious. 



Beeswax moths, A. S. Olliff [Agl. Gaz. N. S. W., 5 {1894), pt. 4, 

 pp. 353-255, pJ. 1). — Descriptions are given of the larvse of Galleria 

 meUonella and Achrcca grisella, feeding on honeycomb and wax debris 

 in the bottom of hives. Cleanliness is advised, taking out the frames 

 and jarring the larvse from them, and fumigating badly infested hives 

 with sulphur or burning them. 



Vegetal parasitism among insects, F. M. Webster {pp. 19, />/.s. .9, 

 figs. 2; reprint from Jour. Columhvs Horf. Soc, 1894, Apr.). — Original 

 and compiled information concerning entomogenous fungi, chiefly the 

 Corclijceps group, and the Untomophthorea'. Especial mention is made 

 of Cordyceps melolontliK on white grubs {Laehnosterna spp.), Isaria spp. 

 on Haelena dcvasfatrix and Nephelodes riaJans, Entontophfhora spha'vo- 

 sperma on Fhytonomus punctatus and Ficrifi rapa\iiu outdoor attack of 

 Empnsa rnusca' on Musca domesiica and Oscinis sp., Empusa pachyr- 

 rhinw on Pachyrrhina sp., E. aidicw on SpiJoHoma virginica, E. Jassi 

 on BiedroccphalmmoJlipes, and Sporotrichnm glohidiferum on the chinch 

 bug {Blissus leucopterus). A classified list of 7 genera and 91 species 

 of fungi is given, with the insect hosts, from all parts of the world. 



Parasitic mimicry, A. Girard {Ann. Soc. Ent. France, 1894, I, pp. 

 124-128). — Certain insect hosts, infested by parasites, finally assume 

 forms which by their mimicry of other objects protect the parasites 

 during the pupa state. The larva of Xylophasia rurea when attacked 

 by Rhogas nigricornis shortly quits the leaves upon which it feeds and 

 attaches itself to trees near the ground or on the ground itself, where 



