547 



550. 



In P/tloea the body is much flattened, and expanded laterally 

 into leaf-like flaps. The antennae are three-jointed, the first 

 joint of which is longest. P. corticata Drury is a peculiar 

 form, which occurs in Brazil. 



Anna spinom Dallas (Fig. 550, b ; a, beak, seen from be- 

 neath ; c, beak of Euschistus punctipes Say) is useful since it 

 preys on the larva of the Doryphora. fl 



Another bug of this group, the Stiretrux 

 Jinihridtus Say (Fig. 551) has similar 

 habits. 



In Thi/reocoris the wing-covers are 

 nearly covered by the scutellum, which 

 is wider behind than before. The body- 

 is short and transverse, being broader than long, and scale-like 

 or semicircular in shape. 77///m>ror/.s' luxteroirtcx Harris re- 

 sembles a Hister beetle, and is greenish black, with dull honey 

 yellow antennae. The species of (Jnrimekvnd are of much the 

 same form, and usually shining black. (1. pulintriu (iennar, 

 according to Riley, injures strawberry-vines and grape-vines in 

 Illinois. In the genus 7W//w the scutellum covers nearly the 

 whole abdomen, but leaves the side of the wing-covers exposed. 

 The antenna? are slender; the first joint is longer than the 

 second, the third being the shortest, and the fifth is twice 

 as long as the fourth. 7V///m iininn<>rtn Say is a variegated 

 species, the costal margin of the whig being 

 provided with transverse fuscous lines. 



The genus Scutellera is remarkable for the 

 great size of the scutellum, whence its name is 

 derived. This piece, which is elongated trian- 

 gular, covers not only the entire abdomen, but 

 also the wings ; the antenna? are five-jointed, 

 the two first joints small, the three last ones 

 long, quite large. The species arc adorned with gay metallic 

 colors, and are especially abundant in the Island of Sunda. 

 (Gerstaecker.) Scutellera virfrlfpnurtata Say is piceous, with 

 green impressed punctures. It is seven-twentieths of an inch 

 long, and is found in Florida. 



551. 



THRIPIDJE (Thripsides) Fallen. This 



interesting group 



