APHILOTHRIX ALBOPUNCTATA. 73 



known as those of Amlrlcus -noduli, from galls under 

 the bark of twigs, and petioles also, oviposit below 

 ground on roots and root-fibres and produce compound 

 j)lurilocular galls which are not only totally different 

 in shape, texture and colour, but are not gregarious, 

 viz. Aphilothrix radicis. 



Aphilothrix albopunctata, Schlechtendal. 

 (Plate XVII.) 



Cynijjs majalis, Giraud ; C. albojmnctata, Schlch. ; Andricus 

 albopunctata, Mayr ; AphUothrix albopunctata, Acller, Liclit., Mayr, 

 Fitcli, Cameron, Mosley. 



English name of gall. — " The Spotted Bud Gall-" 



Position of gall. — lu lateral and (occasionally) terminal bnds. 



Manner of growth. — Solitary, sessile, glabrous, glossy, longi- 

 tudinally grooved. 



Colours. — Green, greenish-yellow, pale brown. 



Average dimensions of a mature specimen. — Height, 

 8 mm. ; breadth, 4 mm. ; girth, 12 mm. 



May be sought during the months of May and June. 



Growth is complete by the end of June. 



The typical condition of the gall is unilocular and unilarval. 



The larva pupates in the gall. The imago emerges during the 

 following spring. 



Parasites, Nos. 39, 49, 56, loQ, 181. Inquilines, Nos. 130, 136. 



I have found this gall, empty, but firmly attached 

 to a twig as late as September lOtli (1907). 



At C in Plate XVII is show^n a young gall emerg- 

 ing from among the leaf scales. It is rather difficult 

 to obtain a specimen in that condition. It will be 

 seen that the apex is depressed, the smooth-pointed 

 jDrojection rising from the base of the concavity. The 

 depression quickly fills up and elevates the projection. 



The sides of the young gall are longitudinally 

 furrowed ; these also disappear as the gall grows, 

 but reappear when it has attained maturity. 



This gall is subject to considerable variation in size, 

 shape, and manner of grow^th. Some illustrations are 



