THE ENTOMOLOGIST. 



75 



ris. 40. 



in spite of tliis, I have described A, circnlans as a new 

 species, it is because the flies differ considerably from one 

 another, and A. burgundus appears a month 

 later. Dr. Giraud informed me that he also 

 had met with the species last described, and 

 thought it new. He thinks that each gall of 

 A. burgundus is formed on an anther, and 

 the union of several galls in an undeveloped 

 flower-bud would produce such an impres- 

 sion. It is certain that the galls of A. cir- 

 culans are generally developed on leaf-buds, 

 and further investigations will show wiiether 

 the galls of A. circulans are only to be found 

 on leaf-buds, and those of A. burgundus 

 only on flower-buds. The figure of the gall 

 of A. burgundus is from typical specimens. 



— G, L. Mayr. Gall of Andricus 



• In the 'En tomologischeZeilung' (Stettin), BURGUNcrs (of the 

 xxxi. 396, Von Schlechtendal, in his paper ragnSeclT^ '"''^ 

 on gall-flies, describes the gall of another 

 and new species as the Andricus burgundus, Gir. This is 

 another Turkey oak species, and has not occurred in Britain. 

 —E. A. Fitch. 



41. Spathegaster Giraucli, Tschek. — This small oviform 

 gall, varying in length from 2"7 to 4*5 millimetres, is deve- 

 loped in the early spring from the small 

 axillar buds (which are scarcely larger than 

 a pin's head) of the weakest, one-year old, 

 shoots of Quercus pubescens. When recent 

 it is green, more or less reddish, and gene- 

 rally thickly covered with soft, red, por- 

 rected hairs. It only consists of a thin, 

 moderately soft shell, which forms the larva- 

 cell ; the small bud-scales are situated at the 

 base of the gall. The gall-fly appears in the 

 first fortnight in May. This year, the spring 

 being late, 1 did not obtain the fly till the 

 middle of May, from fresh galls kindly sent 

 me by Director Tschek. — G. L. Mayr. 



This species — named after Dr. Giraud, from galls found 

 rather commonly near Piesling (Austria), by Tschek (18()t), 



Fig. 41. 



