124 ENTOMOLOGICAL NEWS [Mar., '14 



while meadows and swamps have been either drained or flood- 

 ed and the original fauna thus wholly or partly destroyed. 



In 1891 I commenced to specialize on the Diptera in con- 

 nection with my work, on the collections representing the local 

 fauna for the Museum of the Wagner Free Institute of 

 Science of Philadelphia, of which I was then curator. As the 

 labels used for the species found in Pennsylvania were only 

 those of the counties adjacent to Philadelphia, and as much 

 of the material has been scattered, it seems desirable to state 

 for the benefit of future workers the exact localities where 

 most of the collecting was done. My note book covering the 

 period from May 30, 1891, to June 25, 1895, represents some 

 fifty-four local collecting trips in the vicinity of Philadelphia. 



"Phila." stands for all of Philadelphia County. One 

 of the favorite collecting trips was to Fairmount Park, back of 

 George's Hill, along a small brook called "George's Run," 

 thence under the railroad bridge to an old pasture field (now 

 entirely built over), thence to the woods in front of the Epis- 

 copal Home, to Belmont Avenue, then across the fields around 

 Belmont Mansion and down the walks leading to the Columbia 

 railroad bridge and from there home, via Strawberry Man- 

 sion. Another trip was to Chamonix, opposite the "Falls" and 

 also home via Belmont and Columbia Bridge. This was be- 

 fore the electric line was built through the Park. Some col- 

 lecting was also done along the Wissahickon. 



I can only mention a few of the many interesting species 

 captured in the twenty-seven collecting trips made to Fair- 

 mount Park. The types of Leptogaster atridorsalis (July 14), 

 Dolichopus reflectus (May 30), D. gracilis (August 4), and 

 Chilosia \prima (September 4), were taken near George's Hill, 

 and Callicera johnsoni near Strawberry Mansion, May 7. The 

 latter was collected by Mr. C. T. Greene. 



The label "Montg. Co." is an abbreviation for Montgomery 

 County. The greater portion of the material marked thus was 

 collected on eight different trips to a piece of woods about one 

 mile east of Edgehill, near the old ore washer. These open 

 woods were a favorite place for many of the rarer Syrphidae 



