4<J-_> NOTES OX LACHNOSTERNA. 



were on persimmon, while, as ou the previous occasion, neither sumach 

 nor blackberry yielded anything. 



On the way to our collecting ground we picked out of a fountain: 

 L. hornii, 1 9 ; L. gibbosa, 1 6 . 



June 9.— Rock Creek Valley. Mr. Schwarz, Mr. Al wood, and my- 

 self. 



The results are poor. />. affinis, 1 $ ; L. inversa, I $ , 5 9 ; L. tristis, 

 1 9 ; L. hirtivuUi, 8 $ , 17 9 : 7.. fraterna, 2 9 ; Z. micans, 7 3,09^ 

 L.arcuata, G 3 , 25 9. 



The night was one in every respect favorable, the location so far as 

 trees are concerned could not be better, but the sod is poor, grass thin, 

 and indeed very little true grass at all. This seems to point strongly 

 to the reason why the Department grounds proved such an excellent 



locality. 



Persimmon seems a favorite here. On my pear trees a very few 

 arcuata were found. Siuce our last Virginia trip, the electric light fauna 

 has changed. The species of Lachnosterna are now generally replaced 

 by Chalepus and Ligyrus, while Diplotaxisis not rare. 



The nights from the 10th to the 13th, inclusive, were cold and windy, 

 and nothing but a few arcuata and hirticula, and an occasional inrersa r 

 ventured out. 



At this point the notes cease. From this time to the end of the 

 month almost every moment of my time, both day and evening, was 

 taken up in work on the exhibit collection for the Cincinnati Exposi- 

 tion, three months' work being crowded into three weeks. One other 

 trip to the Department grouuds was made by Mr. Schwarz and myself, 

 developing nothing new. Into my window at Lanier Heights a few 

 specimens found their way, attracted by the light, but they were not 

 numerous. 



On June 30, I left for Cincinnati, returning about the 10th of July. 

 Mr. Schwarz and myself then made another trip to the Department of 

 Agriculture grounds, turning up a few specimens of gracilis only. This 

 species was new to me, not having been seen at all before I left. 



Mr. Ulke, who continued collecting at the electric lights, reports the 

 first arrival of ephilida and gracilis on July 17, the former rarely, the 

 latter abundantly. On July 19 the last fraterna was taken at light- 

 On August one specimen each of quercus and gracilis appeared, and 

 on August 8 one specimen of ephilida. This closes the record. 



Mr. Ulke also took L. marginalis, L. rillifrons, aud L. balia at light; 

 we found none in beating. 



This record gives approximately the local material at hand, all of 

 which was carefully studied in the preparation of this paper. In the 

 form of a list the following were taken in and around the city of Wash- 

 ington during the season of 1888, as set out above: 



Lachnosterna ephilida Say. Lachnosterna gibbosa Burm. 



gracilis Burm. affinis Lee. 



