92 LECANIUM PERSICLE. 



" Us paraissent en avril. 



" Les larves resemblent aux femelles, mais un pen 

 plus etroites ; au mois d' avril elles commencent a se 

 metamorphoser, le bouclier devient plus pale et enfin 

 blancMtre. Sous cet ecusson se form la pupe oblongue, 

 d'un brun fonce; elle a des moignons d'elytres tres- 

 courts, d'un brun roux, le thorax fortement convexe et 

 1'abdomen deprime, avec une ligne mediane elevee. 

 L'etui penal est saillant." 



Ribaga (1. c.) gives a much fuller account of the 

 male, accompanied by an excellent figure, from which 

 I gather that it is of the ordinary type, the special 

 characteristics being the rather large pair of setiferous 

 tubercles on the last abdominal segment but one, and 

 the unusual swollen nature of the last two joints (9, 

 10) of the antennae. 



Habitat. Chiefly on the peach, nectarine, and rose; 

 it is rare on the vine, and has once been taken on 

 Grindelia liirsuta. In this country it is most abundant 

 under glass, and is often very destructive to the peach 

 and nectarine, and more rarely the vine. It is also 

 found on the above-named plants out of doors, but 

 always on a wall-trained tree, and generally in very 

 small numbers. The following is a list of the locali- 

 ties : Cheshire, common throughout the county ; 

 Up well, Cambs. ; Ingoldisthorpe and Barningham 

 Parva, Norfolk ; Witcombe, and Pains wick (Watkins), 

 Gloucestershire ; Tring, Herts (Rothschild) ; London 

 district (Douglas and McLachlan) ; Mortlake (Nichol- 

 son) ; Dover (Tomlin) ; Isleworth (Cockerell) ; Shirley 

 Warren (Rev. H. S. Gorham) ; Bearsted, Kent (Green) ; 

 Stratford- on- A von and district (Hodges). 



Habits. The most destructive member of the genus, 

 and a very difficult species to eradicate when once 

 established. The eggs are laid about the middle of 

 May (under glass) and the larvaa hatch about the 

 middle of June. They then disport themselves over 

 both branches and leaves (see vol. i, pp. 3, 7), where 

 thev srenerallv remain fixed, but individuals mav be 



