Galls caused by the larvae of Asphondylia 

 pimpernellse ¥. 



on 



the flower-heads of Daucus carota Linn. 

 PLATE 119. 

 Synonymy of Insect. 



Habitat of Daucus Carota. — The degenerated or wild 

 form of this plant may be found in some parts very 

 abundantly in fields, pastures, waste places, etc., com- 

 monly throughout Britain. 



The Gall is formed by the abnormal swelling of the seed. 



Position.— On the umbels. 



Manner of Growth. — Gregarious ; pubescent ; separate. 



Colour.— At first pale green, later dark green striped with 

 purple. 



Average Dimensions of a Mature Specimen. 

 Length, 5 mm.; breadth, 4 mm.; girth, 12 mm. 



May be sought during the months of August, September, 

 and October. 



The Growth is complete by the end of September. 



The Typical Condition of the gall is unilocular and 

 unilarval. 



The Larva pupates in the gall. The imago emerges during 

 October. 



These galls while growing are not conspicuous, and may 

 often be overlooked, unless a careful search is made for them. 

 They are extremely variable in size. Some are scarcely larger 

 than a normal seed, while a large one will exceed 8 mm. in 

 length. In shape they are mostly reniform ; occasionally a few 

 of a more or less globular shape may be found. They never 

 coalesce, but several may be partially joined to each other. 

 When mature they are very pretty. 



The illustration is of specimens gathered at Hastings by 

 the author. 



