THRIPID^. 547 



In Phlo'ea 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. cortkata Drury is a peculiar 

 form, which occurs in Brazil. 



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

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

 prej-s on the larva of the Doryphora. 

 Another bug of this group, the Stiretrus 

 fimhriatus Say (Fig. 551) has similar 

 habits. 



Iti Corimelmna the wing-covers are 

 nearly covered by the scutellura, which iz 

 is wider behind than before. The body 

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

 or semicircular in shape. Corimelmna nitiduloides Wolff re- 

 sembles a Ulster beetle, and is greenish black, wiih dull honey 

 yellow antenme. Tlie species of this genus have much the 

 same form, and are usually shining bhick. C. pxilicaria Ger- 

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

 vines in Illinois. In the genus Tetyra the scutellnm covers 

 nearly the whole abdomen, but leaves the side of the wing- 

 covers exposed. The antenute 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. Tetyra viarmorata Say is 

 a variegated species, the costal margin of the 

 wing being provided with transverse fucous lines. 



The genus Scutellera is remarkable for the 

 great size of the scutellnm, whence its name is 

 derived. This piece, which is elongated trian- 

 gular, covers not only the entire abdomen, but 

 also the wings ; the antennae are five-jointed, 

 the two first joints small, the three last ones '°' 



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

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

 (Gerstaecker.) No species oiScictellera occur in America. In 

 the group or family Arthropteridoe of Fieber the scutellnm is 

 still larger than in Scutellera. 



Thripid^ (Thripsides) Fallen. This interesting group 



