Spathegasfer Taschenhergi. 6'>^ 



I repeated the experiments and again obtained SpatJie- 

 gastcr Taschenhergi galls. 



[The cherry gall is found in July on Querais sessili/Iora, O. pedun- 

 culata, and Q.pubescens. 



Inquilines. Syttergus vulgaris, S. pallicornis, in the spring of the 

 second year ; S. Tscheki, Sapholytus connatus, and Neuroterus parasiticus. 



Parasites. Syniomaspis lazulina. May and June of second year ; 

 Torymus abdominalis, in March of second year, T. elegans, T. iiicertits, 

 T. rcgius,3.TL6. Callijuome antentiatusirom March to June of second year, 

 (This last species is sometimes hyperparasitic on the Inquilines.) 

 Eurytoma nodularis, E. setigera, E. rosae, Megastignuts dorsalis, Porizon 

 claviventris, Bracon aterrimus. Orihostigvna gallarurn, Pteromalus 

 fasciculatus, P. jucundus^ Decatonia biguttata.'] 



14^^. Spathegaster Taschenbergi. Schltdl. ^ 



Gall. These dainty little galls measure 2-3 mm. in 

 length; they have a velvety rind with a rounded point 

 of a dark violet colour ; this beautiful colour is caused 

 by a peripheral layer of pigment cells, studded over 

 with short white hairs which give the velvety appearance 

 to the surface. The inner kernel of the gall is soft and 

 consists of cells containing starch granules ; these are 

 completely eaten up by the larva, so that ultimately 

 nothing is left but a thin rind. (Fig. 14^.) To rear 

 the flies the galls must be collected in the beginning of 

 May and kept in damp sand ; the flies appear in the 

 end of May or the beginning of June. 



Fly. Size 2-5 mm. long ; antennae, head, thorax 

 and abdomen black ; thorax smooth and very shining, 

 scutellum dull and not haired ; legs yellowish, only 

 trochanters black, wings long and smoked. The male 

 and female similar. 



Experimental breeding. Immediately after fecunda- 



[^ Dryophanta Taschenbergi, Mayr.] 



