60 



THE ENTOMOLOGIST. 



following days. The pair figured — male, 3rd July ; female, 

 5lb ; the other two, a n)ale and female, on the 2nd and 8th 

 respectively. These latter were dark, but not so strongly- 

 marked as the former. I may add the parent female was 

 darker than the ordinary type. — B. IV. Neave ; 5, Hujhhary 

 Grange, Highbury Park, N., Fehniary 3, 1876." — Edward 

 Newman. 



Descriptions of Odk-galh. Translated from Dr. G. L. M Ayr's 

 'Die Alilteleuropaischen Eichengallen ' by E. A. Fitch, Esq. 



(CoutinueJ from p. 43.) 



ri". 38. 



Gall of ANHPacus inflatok (aiul section of the same). 



38. Andricus injlator, Hart. — This gall appears like a ter- 

 minal swelling of the young shoots of Qiiercus pedunculata, 

 and is clothed with leaves like any other twig. Its develop- 

 ment is undoubtedly caused by the gall-fly laying its egg in 

 the axis of the terminal bud. When the bud is developed 

 in the spring, the top of the axil part ren)ains white, its 

 periphery being but little ])revented from development with 

 the leaves; an elongate cavity is exhibited, in a longitudinal 

 section, at the lower part of which lies the small egg-shaped 

 inner gall, like an egg in a cup of corresponding din)ensions; 

 the cavity is covered with a thin skin at the top. In June 

 the fly breaks through the upper end of the inner gall and 

 the top membrane. The empty gall continues growing until 

 the autumn, and from its axillary buds several twigs are 

 developed in the course of this and the next year. Professor 

 Schenck calls the C. axillaris described by Hartig a variety of 

 this species. Schenck has bred the fly, and found it identical 



