110 OYNIPS GEMM2E. 



the base of the radial cell, and the outer side of the 

 areolet, which are black and incrassated. 

 Long 1 ; alar exp. 3 lines." 

 What this species may be I know not. 



Cynips gembo: ? 

 PL IV, fig. 2 (after Ormerod) ; PI. XVII, fig. 7. 



Cynips gemmea, Giraud, Verh. z.-b. Ges. Wien, 1859, 372; 

 Mayr, Eichengallen, xxxiii, fig. 43. 



Miss Ormerod (E. M. M., xii, 197) relates finding a 

 gall at Isleworth which may be this little-known 

 species. She says, " The gall is about a quarter of 

 an inch in diameter, irregularly spherical, about two- 

 thirds of it above the upper surface of the leaf thickly 

 beset with spines, for the most part simple, but in 

 some cases branched. The colour yellowish-green 

 with a mixture of rose, especially ou the spines. 

 Internally the gall is single-chambered, with a hard 

 woody wall, about a quarter of the diameter of the 

 gall in thickness." 



Miss Ormerod alludes to the resemblance of these 

 galls to the descriptions of Giraud and to the figures 

 of Mayr. Gemmae is very little known, and the maker 

 not at all. I am indebted for a few specimens to 

 Prof. Mayr, and I figure them on PI. XVII, fig. 7, 

 to show their resemblance to those figured by Miss 

 Ormerod. 



There are also the acorn galls found by myself in 

 Clydesdale, from which, however, I only reared 

 Synergi. The acorns were about half the ordinary 

 size, apparently not distorted outwardly, and the two 

 Synergi lived in oval cells. Eothera (Ent., xi, p. 206) 

 states that he found at Ollerton a thin, shelly, uni- 

 locular gall lying loosely within the acorn case, and 

 coutaining a large, fat, white, maudibulate larva, 

 closely resembling that of G. Kollari. 



