552 



HEMIPTEKA. 



fied cheap petroleum, mixed with 1,000 parts of water. It 



can be introduced into holes and cracks in houses, and sprin- 



^ kled on plants. The cracks of bedsteads may be 



filled with mercur}^ ; and benzine will also effectually 



dislodge them, as well as boiling water. The benzine 



ma}' be applied by means of a surgical instrument 



Fig. 55(i. called the Atomizer. 



In 8yHis the head is small, compressed laterally, and the 

 fore legs are raptorial, thus allying the genus with Reduvius. 

 8yvt\s (Phymata) erosa Fabr. (Fig. 556) has swollen fore legs, 

 and a deep groove on the head ; it is useful in devouring 

 Aphides. 



^?^#* 



^^i^M- 



Fis:. 557. 



In TinQis the beak reaches to the end of the breast, and the 

 «>/e legs are simple, the thorax and wing-covers are spread 

 out leaf-like, and the species are of small size. T. Jiyalma 

 Heri-ich-Schaeffer is abundant on the willow. T. Jnjstricellus 

 Richter (Fig. 557, upper and under side, magnified twenty 

 diameters) is a Ceylonese species. It "sticks close to the 

 under side of the Bringall leaf, and there undergoes all its 

 changes, from the larval to the perfect state. The larvte are 

 black." (Science-Gossip, p. S4, 38G9.) 



