HEMIPTERA. 211 



yet to be discovered. Something can be done by burning in au- 

 tumn all rubbish about fields, in fence-corners, and in other places 

 where the bugs have congregated to pass the winter. The march- 

 ing of the spring brood into new fields has been stopped by means 

 of ditches, as is done with the Army-worm. Some farmers have ac- 

 complished the same purpose by making a line of gas-tar on the 

 ground ; the bugs will not pass such a line, but it is necessary to re- 

 place it frequently. In some cases kerosene emulsion can be used 

 to advantage. 



Family XXXI. BERYTID^:.* 



The Berytidce consists of a small number of species, which on 

 account of their attenuated forms are very striking in appear- 

 ance. The body is long and narrow ; the legs and antennae are also 

 long and extremely slender. There is a transverse incision in the 

 vertex in front of the ocelli. The antennae are four-jointed, elbowed 

 at the base of the second segment, and with the tip of the first seg- 

 ment enlarged. The rostrum is four-jointed ; and the membrane 

 of the wing-covers is furnished with a very few veins. 



Only two genera are catalogued from 

 the United States, each represented by a 

 single species, Jdlysus spinosus and Neides 

 muticus. These can be separated as follows: 



In Jdlysus (Fig. 181) neither thecorium 

 nor the venter is punctate ; and the ver- 

 tex is not furnished with a prominent 

 spinous process extending cephalad. 

 There is, however, a small spine on the 

 scutellum, and one on each side of the 

 thorax in front of the coxa. /. spinosus 

 measures about 8 mm. (0.31 in.) in length. 



In Neides the corium and venter are 

 strongly punctate; the vertex is furnished FlG ^.-jaiytuss finals. 

 with a prominent spinous process extend- 

 ing cephalad. This genus lacks the spines of the scutellum and 

 thorax characteristic of the preceding genus. 



* Berytidse, Berytus : firjpvroS, Greek name of Beyrout. 



