136 biological si'mvkv of 



Lampyridae 



The Fireflies or Lightning Bugs 



Looking under loose bark will take them on dark days but 

 sweeping and beating is the better method. June and July arc 

 the best months. After a very dry May in both 1943 and 1944 

 this family were very abundant, while in 194."), after a very 

 wet May, they were exceedingly scarce. 



Lucidota Laporte 



L. atra (Fab.) (6971). On trees in shady woods. Bar Har- 

 bor; X. E. Harbor; Echo Lake, June 16-July. Common. 



L. cobrusca (Linn.) (6975). Station F17, June 13; Section 

 13 sweeping low herbage. A common and widely distributed 

 form with considerable size variation. Found after frost 

 under bark of trees. 



L. corrusca var. autumnalis (Melsh.) (6975a). Same as 

 above in every respect. 



L. corrusca Linn. var. lacustris (LeC.) (6975b). This form 

 is not common. Outlet Eagle Lake sweeping Solid a go, Aug. 

 25. 



L. nigricans (Say) (6978). Penikese on grass, July 3; S. 

 W. Harbor ; Bar Harbor, July 20-Aug. 10. 



L. dkcipiexs (Harr.) (6979). Penikese on grass, July 3-15. 



Pyractomena Leconte 



P. angulata (Say) (6984). Common June and July and 



taken by sweeping. 

 P. horealis (Rand.) (6985). Long Pond, June 28; Corfield 



on grass at night, Aug. 17. 



Photinis Lacordaire 



1*. ardens (Lec.) (6990). Common, June through August. 



Photiris Leconte 



P. pennsylvanica (DeG.) (7013). Common in July and 

 taken by sweeping bushes. 



