FROG FLY ; CUCKOO FLY JUMPER. 
78 
of Turnips early in the year, these maggots only went down just 
below the surface and went through their changes, and reappeared as 
beetles in about a month. 
Frog Fly; Cuckoo Fly; Jumper. Kuacanthus interruptus, Linn. 
Euacanthus interruptus. 
Cuckoo Fly, winged and in early stage, magnified ; lines showing nat. size. 
The only notes I have received throwing any light on the point 
of where the Cuckoo Flies, known also as Frog Flies or Jumpers, 
come out from to infest the Hop, are from Mr. D. Turvill, West 
Worldham, Alton, one of the neighbourhoods where these “jumpers” 
were particularly injurious in 1881. 
Writing on the 11th of June he mentions—“I discovered the 
young ‘ Cuckoos ’ first this year in the base of the plants close to the 
ground, amongst what is known as the ‘ clearings,’ or the superfluous 
vines that are neglected by the ‘ tyers,’ and allowed to trail in a bunch 
around the roots of the plant—their appearing there first gives the 
idea of their emerging from the ground.” Mr. Turvill mentions the 
Jumpers were not so prevalent as last season. 
At Detling, near Maidstone, it is also noted that there was 
scarcely any attack this year. 
