REPORT OF THE DIRECTOR I9II 57 



Summary of the Food Habits of American Gall Midges ; A Generic 

 Synopsis of the Itonidae ; Hosts and Galls of American Gall Midges, 

 and New Species of Itonidae. His more important publications, 

 forty-four in number, are listed in his report, which also contains 

 detailed accounts, with special reference to control measures, of 

 most of the injurious species mentioned above. 



Collections. There has been a continued increase in the State 

 collections. Most of the additions the past year have resulted from 

 collections by the Entomologist's staff, some of the most desirable 

 having been reared. Extremely large series of Miastor and Oli- 

 garces were obtained in this manner and will be available for 

 exchange later. Specimens illustrating the habits and work of 

 insects are being collected at every opportunity, since they are par- 

 ticularly valuable for economic and exhibition purposes. There have 

 been substantial additions to the gall midges or Itonidae and they 

 are now in very satisfactory condition. The pinned specimens were 

 rearranged by Miss Hartman and this, in connection with the 

 numerous microscopic slides, and the large assemblage of galls and 

 other biological material, will prove invaluable to subsequent workers, 

 especially as the collection includes a very large number of types. 



The classification of the diversified material in the Museum and 

 that daily coming to hand is necessarily slow and is a work which 

 must extend over years. There is need of more assistance in carry- 

 ing on the large amount of labor involved in the amassing of a thor- 

 oughly representative collection necessary for the maintenance of an 

 adequate exhibit in the enlarged quarters afforded by the Educa- 

 tion Building. 



Three additions have been made to the series of plant groups 

 designed for the exhibition of insects in their natural environment in 

 the new quarters. These will add greatly to the attractiveness and 

 pedagogical value of the enlarged exhibit collections now in 

 preparation. 



Assistant Entomologist Young has rearranged and identified the 

 Muscidae, the species belonging to the coleopterous genera Tele- 

 phorus and Podabrus, and has done considerable work on the snap- 

 ping beetles or Elateridae, the parasitic flies, the Tachinidae, and a 

 group of parasitic wasps, the Braconidae. 



Miss Hartman has made nearly five hundred microscopical prep- 

 arations of various species, mostly gall midges and scale insects, 

 rearranged the pinned collection of scale insects and prepared a 



