•27G HEUIPTEEA-HOMOPTEEA. 



Family TETTIGONIDiE. 



The Hop Frog-fly (Euacanthus interruptus). 



" Jumpers," as these insects are called in the hop-gardens, 

 sometimes do much harm to the hops. When hadly attacked 

 the leaves turn yellow and die off. These jumping bugs are 

 provided with four ample wings when adult, and are gaUy 

 coloured with brown, yellow, and sometimes red. The larva 

 and pupa are green and yellow. In all stages this insect is 

 very variable in colour. Their exuviae are often found sticking 

 on to the hop-leaves. Just as in Calocoris (p. 278), they suck 

 out the sap of the leaf and bine, especially in hot dry weather. 

 It is especially upon badly tilled land and stony and light soils 

 that " Jumpers " are troublesome. The damage manifests itself 

 in June by the yellowness of the leaves, their curled appear- 

 ance, and the stopping of the leading shoots revolving. The 

 abolition of poles has materially checked this pest. Jarring is 

 one remedy we can employ when adults are present, but tobacco 

 wash can safely be used on hops, and this kills the larvas and 

 nymph.T. 



Bugs (Heteroptera). 



The second sub-order of Hemiptera are the Bugs. They are 

 united together by the fact that the first pair of wings have 

 their bases leathery, the outer portion being membranous (hemi- 

 elytra). Many of these insects are injurious to plants, and 

 some to man, but some are carnivorous (Nemocoris), and are 

 thus beneficial. The Heteroptera have an incomplete meta- 

 morphosis like the Homoptera, the larv.B being apterous, the 

 pup;e having little bud-like wings. They have a long, sharp, 

 jointed rostrum by which they puncture plant-tissues and draw 

 out the sap. Often a distinct scar is left behind where their 

 beak has been inserted, or the tissue may split. The Common 

 Bed-bug (C'iiiie.c Jcctulariiix) belongs to this group, introduced 



