13G INSECTS APFECTU^G THE ORANGE. 



inches long, exclusive of its members; it is very liesivy, clninsy, an«l 

 slow in its movements. 



There is bat a single brood; after deimsiting its eggs, in September 

 antl October, the insect disappears and is not seen again nntil the yonng 

 come out of the ground in the following spring. 



Absence of enemies. — The Lubber (irasshoi)perhas no known enemies. 

 Predaceons animals cannot be induced to feed upou it, aiul doubtless 

 its juices have an acrid and disagreeiible flavor. Its sluggish habits, 

 taken in connection with its conspicuous coloration, show that it has 

 little need of concealment, and that it does not fear attacks of enemies. 

 The eggs are probably preyed upon by some species of Bee fly (Bomby- 

 Uid(c), but if such an enemy exists it remains as yet undiscovered. 



Remedy. — So large an<l conspicuous an insect is not likely ever to 

 I)rove an alarming pest, and hardly requires elaborate directions for its 

 management. If care is taken to destroy the young broods by tramp- 

 ling upon them when they appear in early sumnuM-, and before they 

 have scattered, there will be an end to anxiety from this source for the 

 seasou, and with a little pains taken at the proper time for two or three 

 successive seasons a farm may be entirely rid of these 'hoppers, even if 

 previously much infested by them. 



OTHER LOCUSTS {Acridii(](v). 



The various species of Acridiiibe, grasshoi)pers, as they are com- 

 mouly called, nibble the leaves of orange trees, but do serious injury 

 only where weeds are allowed to grow up around the trees. From their 

 size and voracity the species of the genus Acridium, of which three are 

 found in Floiida, are most injurious. They are large insects, 2 or 2i 

 inches long, and are very active, jumping and Hying to great distances. 



In Aeridium obseurum Burui. the general color is olive green, with 

 fuscous (lots and a yellow stripe from the head to the tip of the (dosed 

 wings. The wing-covers are chocolate brown. 



Acridium americanum Scud. (Fig. 55) is very similar, but the general 



Fio. 55. — Acridium amerieainim. (After Riley. ) 



color is reddish-brown and the wing-covers are marked with large 

 brownish si)ots. 



Acridium alataceum Harr. is dull bro'wnish-vellow in color, and the 



