THE FEEDING HABITS OF SCORPION-FLIES. 321 



tibiae. However, the differences are better taken point by 

 point, thus : — 



grcBcana. 

 Femora and tibige weak. 



Both white and black scales on 



legs. 

 Scales strongly toothed. 

 Spurs cone-shaped, not thick. 

 Femora concave on upper edge. 



Tibias not strongly haired. 



italica. 

 Femora and tibias much broader, 



but less strongly scaled. 

 Scales on legs all black. 



Scales weakly toothed. 

 Spurs ninepin-shaped, thick. 

 Femora somewhat regularly club- 

 shaped. 

 Tibiae weakly haired. 



In the legs, alpina and gracaria resemble each other, but in 

 alpina the femora and tibise are even weaker than in grcecaria, 

 although the scales are a trifle broader. 



I shall now close my paper by giving a list of the localities 

 whence the various forms I have described were received :— 

 I, zonaria. Central Europe. 



var. britannica. England, 

 var. rossica. Ural Mountains, 

 var. obscura. England. 

 /. alpina. Switzerland, Tyrol. 

 I. italica. N. Italy. 



var. fiorentina. Florence, Modena. 

 var. carniolica. Carniola. 

 I. grcBcaria. Greece. 



var. istrianus. Carniola. 



THE FEEDING HABITS OF SCORPION-FLIES 

 (PANOPiPID^). 



By F. W. & H. Campion. 



During the present year we made a few experiments with the 

 object of discovering, for our own satisfaction, the kind of food 

 consumed by scorpion-ilie^ in their adult condition. At Ickenham, 

 Middlesex, we obtained a living pair of Panorpa communis on May 

 19th, and placed them in separate glass-bottomed boxes. At 

 7 p.m. on the following day a live Aphid and a small live Muscid 

 were introduced into the box containing the male Panorpa, and a 

 live Aphid and a small dead Muscid into that holding the female. 

 The next day, May 21st, the female was observed to be feeding 

 on the dead Muscid. The male did not interfere at all with the 

 living insects in its own box, but feeding soon took place when 

 the dead Muscid, previously fed upon by the female, was offered 

 to it. By nightfall on May 21st both the Panorpa were in a 

 moribund condition, and were therefore killed off. 



