FOWLER : ADDRESS TO LINCOLNSHIRE NATURALISTS. 155 
come and that they were the fortunate discoverers of its advent. 
Most of us, too, can remember the more recent scare concerning th 
season favouring its increase, or other causes which require careful 
Investigation) that its attack becomes serious. There are, unfor- 
the Hessian Fly. ong them we may mention the Frit Fly 
fritid), an insect closely alliec he Hessian F omyia 
sternal the Saddle Fly (Diflosis eguestris), first discovered as 
rit i 
: fe) S 
( Siphonophara) granaria), the Corn Sawfly (Cephus pygma@us), the 
Corn Thrips (Zhrz t least, the Wire- 
list of pests, but fortunately they never appear to attack at once, and 
even in the same localities their ravages are sporadic ; one farm, for 
wnstance, may be ravaged by wireworms in one year and little 
: n or i fi ay be 
Just’ reversed. Evidently, then, there are many problems to be 
solved—problems requiring careful examination by skilled specialists, 
but likely to repay a hundredfold the cost of their solution. i 
‘for this reason that we would ask for the appointment of a State 
Entomol 
infected district, t 
which he has ob 
(Ieerya) ; Tuin stared the proprietors in the fi until Professor 
Riley, w ; cies 
a erefore imported numbers of these insects to the infested 
icts, and on being placed on the orange trees they 
oo multiplied until they practically exterminated the ‘mealy 
