LECANIUM PERSIOE, VAR. COEYLI. 95 



Adult female after parturition (fig. 9 b) usually more 

 or less hemispherical, but quite a number of specimens 

 are elongate -ovate, as in L. persicde. Colour bright 

 reddish-brown or chestnut-brown, with blackish, 

 suffused, transverse lines ; the latter are sometimes 

 retained for an indefinite period, but are often entirely 

 absent in cabinet specimens. Sculpture and ana- 

 tomical characters as in the typical L. persicds. 



Long, 3-5 mm. ; wide, 2'50 3 mm. 



Larva (fig. 10) not differing from the type. 



This variety may be recognised from typical L. per- 

 sicx by its usually short ovate and more or less hemi- 

 spherical form, and the very distinct transverse black 

 bands. It is also much more constant in size than the 

 type, and the old adults are of a rather brighter 

 reddish -brown. 



Habitat. Very common and sometimes injurious 

 to the three kinds of cultivated currant (Ribes spp.) 

 and the gooseberry ; it is also very common on Goto- 

 neaster microphylla, Ribes sanguineum, and Cytisus 

 scoparius, but rare on raspberry (Rubns idseus), Clematis 

 spp., Gratcegm oxyacantha, G. pyracantha, and Phila- 

 delphus sp. Mr. Douglas sent it to me on a species of 

 Casuaria, a genus belonging to the Coniferas, and Mr. 

 Nicholson has found it at the Royal Gardens, Kew, on 

 Wistaria ckinensis and Neillia sp. I cannot find that 

 it has been recorded from Scotland or Ireland, but it 

 has a wide distribution in England ; and I have found 

 it common in Denbighshire and Flintshire in North 

 Wales. 



Since the time of Signoret this coccid has been 

 referred to by nearly all coccidologists as Lecanium 

 rib-is. Fitch; but as Fitch's description is quite inade- 

 quate and his types are apparently lost, it is impossible 

 to say what he had before him. 



Dr. Sulc, of Bohemia, who has seen Signoret's 

 examples of Lecanium coryli, Linn., informs me that 

 they are identical with Lecania found on Gorylus and 

 other plants in Bohemia. Dr. Sulc has been good 



