174 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



3. The adult fly emerges from the gall in May. 



4. In mating, the female inserts its ovipositor into the male's 

 abdomen, the copulation lasts (in the case observed) about 37 

 minutes. 



5. The female lays the egg by squeezing it out through the penul- 

 timate segment of its ovipositor, but does not use the ovipositor to 

 make any puncture on the plant. 



6. The larva bores from the outside into the inside of the young 

 shoot, causing the growth of a gall. 



7. The transformation of the fly in the galls extends over a con- 

 siderable period, 17 a being found in the pupal stage through the 

 fall and winter, 32'/ in the early spring, 90% in mid-spring, and 

 adult in late spring. 



8. The adult beetle {MordcUistiiia un'wolor Lee.) appears in 

 June. 



9. The mating of the beetles lasts about one-half minute. 



10. The female oviposits on the surface of a gall by making a 

 very shallow hole in which to embed the broad end of the egg. 



11. The egg has an irregular outline, with an attenuately pointed 

 end. 



12. The larva gets into the gall by boring a hole on the surface. 

 When about a day old it is .5 mm. long, and when grown it is 7-8 

 mm. long, 1.9 mm. broad. 



13. The larval period lasts from July to May of the following 

 year. 



14. The pupation takes place in the latter part of May and first 

 part of June. 



15. The eggs laid are found from last part of June till first part 

 of August. 



16. The other occupants of this gall are Eurytoma gigantea 

 Walsh, Eurytoma sp., Lasioptera solidciginis O. S., Pachyopthalmus 

 signatHS Meigen, Tortrieid caterpillar, Hyduoeera sp., Lasiiis um- 

 hratiis Nyl., Ancistroeera tigris Sauss, Idolothrips armatiis Hood, 

 Geleehia sp., Halietus provauelieri, Augoehlora sp. 



