603 



author to be a misprint for Doiiglasiella) was erected by MacGillivray 

 [R.A.E., A, ix, 192] with mncnarlcnsis as type, and this must now be 

 sunk to Oythezia, Bosc. ' 



Laing (F.). Aleyrodidae : Correction of generic Nomenclature. — Ent. 

 Mthly. Mag., London, no. 702, No\-ember 1922, p. 255. 



It is pointed out that Ouaintance and Baker in their " Classification 

 of the Aleyrodidae," part ii (U.S. Dept. Agr., Bur. Ent. Techn. Ser. 27, 

 pt. ii, 1914), assigned Aleurodes vaporariorum, Westw., as the type of 

 Asterochiton, Mask., while they erected the genus, Dialeurodoides with 

 Alenrodes aureus. Mask., as the type. In the " Contents and Index " 

 to the Classification, pubhshed in 1915, the authors, in the corrigenda, 

 p. xi, point out that Cockerell had in 1902 designated aureus, Mask., 

 as the type of Asterochiton, Mask., and cited pergandei, Quaint., as the 

 type of his sub-genus Trialeurodes. A. pergandei is congeneric with 

 vaporariorum, Westw. The synonymy stands, therefore, as follows : — 

 Asterochiton (Mask.), CklL, type aureus, Mask. [Dialeurodoides, Quaint, 

 and Baker, type aureus, Mask.) ; Trialeurodes, CklL, type pergandei, 

 Quaint. {Asterochiton, Quaint. & Baker, type vaporariorum, Westw.). 



Bruner (S. C). Sobre la transmision de la enfermedad del 'mosaico ' 

 6 ' rayas amarillas ' en lacanadeazucar. — Rev. Agric. Com. y Trab. 

 {Cuba), 1922, v, no. 1, pp. 11-22, 5 figs. (Abstract in Rev. App. 

 Mycol., Kew, i, no. 10, October 1922, pp. 342-343.) 



As a result of experiments in Cuba on the transmission of mosaic 

 disease of sugar-cane, infection of healthy plants was produced in a 

 low percentage of cases by Aphis maidis, but as this insect does not 

 normally attack sugar-cane in the field, it cannot be considered of much 

 importance as a vector of the disease. 



Other insects regarded as possible carriers included Kolla Jwrbida 

 {Tettigonia similis), Tettigonia sp., Draeculacephala mollipes, D. reti- 

 culata, Myndus crudus, Stenocranus {Delphax) saccharivorus, Phacio- 

 cephalus sp., Oliarus sp., Monecphora bicincta, Pseudococcus calceolariae, 

 P. sacchari, Sipha maidis, Thrips, Tarsonemus spinipes, Paratetr any chits 

 viridis, Enscelis bicolor, Liburnia sp., and Aphis setariae \cf. R.A.E., 

 A, x, 96]. Of these, only Phaciocephalus sp. is regarded as worth 

 further investigation ; the others are either proved non-carriers or 

 else their activity as transmitters is thought to be negligible. Inocu- 

 lations with juice from diseased sugar-cane have confirmed the 

 possibility of infection by this means. 



Le Moult (L.). Le Hanneton et son parasite. — Comptes rendus Acad. 

 Agric. de France [sine loco.], viii, no. 21, 1922, pp. 596-601. 

 (Abstract in Rev. App. Mycol., Kew, i, no. 10, October 1922, 

 p. 355.) 



In the course of a campaign against cockchafers in France some 

 30 years ago the author discovered the fungus, Isaria densa, which 

 was used with much success against the insects and practically exter- 

 minated them in the fields where it was employed. Cultures were 

 made of this fungus, and also of /. destructor, I. farinosa and Sporo- 

 trichum globuliferum, about 5 lb. of the cultures being mixed with 

 10 gals, of sand or soil and spread on the field before tilling, in the 

 hope of destroying also the larvae of Anisoplia austriaca, E later segetis 

 and Euxoa {Agrotis) segetum. The author believes that this method 

 is universally applicable to insect pests, such as the vine moth [Clysia 



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