8 NEW YORK STATE MUSEUM 



efficient enemies of these pests. The entomologist would emphasize 

 once more the grave danger of bringing either one or both of these 

 pests into the State on nursery stock originating in the infested 

 area, and would call attention to the great desirability of promptly 

 exterminating any isolated colonies which might be found in the 

 near future. 



House fly. The popular interest in the control of this pest 

 has continued and bids fair to result in important and far-reaching 

 sanitary changes. The demand for information along these lines 

 speedily exhausted the edition of Museum Bulletin 129 on the 

 Control of Household Insects and necessitated its republication in 

 an extended and revised form as Museum Bulletin 136 entitled: 

 The Control of Flies and Other Household Insects. The entomo- 

 logist has been called upon to give a number of popular lectures 

 upon this insect and has made personal examinations of conditions 

 in several localities, giving special attention to situations favorable 

 for the production of flies in cities and villages. 



Gall midges. Our studies of this extensive and interesting 

 group have been continued and the results are now in manuscript. 

 This publication will describe fully some 800 species, 441 having 

 been reared. The tabulation of midge galls, made with the assist- 

 ance of Miss Hartman, shows that we know some 538 species 

 representing 44 genera and living at the expense of some 177 plant 

 genera referable to 66 plant families. In addition to the above, 

 there are some 5 species reared from unknown plants and 11 

 species belonging to 3 genera known to be zoophagous. 



A number of new species have been reared during the year. 

 Miss Cora H. Clarke of Boston, Mass. has continued collecting 

 and forwarding to us excellent series of galls from which we were 

 able to rear several previously unknown species. The care of this 

 material has devolved largely upon assistant D. B. Young and 

 Miss Hartman. The latter has also made a large number of micro- 

 scopic mounts of these fragile forms. 



Miscellaneous. The entomologist spent nearly six weeks in 

 Europe, giving special attention to museum methods, shade and 

 forest tree insects and the gall midges. Collections were studied in 

 the following institutions: British Museum of Natural History, 

 London; the Universities of Oxford and Cambridge; the Tropical 

 School of Medicine, Liverpool; the zoological gardens at Antwerp; 

 the Royal Museum of Natural History at Brussels; the botanical 

 gardens of Ghent; Museum of Natural Historv and also the ento- 



