INSECTS INFESTING THE GRAPE. 



199 



Fiff. 183. Fig. 183. — False 



Chinch Bug ; «, a 

 leaf, showing its 

 work ; 6, a pupa — 

 colors, dingy yellow, 

 red, and brown; c, 

 the adult — colors, 

 grayish-brown a n d 

 black. 



The perfect insect (Fig. 183r) is of a grayish-brown color; 

 the wing covers (hemelytra) are nearly transparent, and gen- 

 erally colorless ; the legs are yellowish, inclining to brown ; 

 length, one and one half lines— in some specimens a little 

 over. The pupa is nearly of the same color as the perfect 

 insect, excepting that the longitudinal lines are brighter ; in 

 color, red and brown ; wing-paxls visible. The larva is of a 

 brownish-yellow color. 



This plant bug is reported as feeding on the potato, cabbage, 

 etc., but has only been reported on grapevines in this State. 

 Remedies.— Use Nos. 36 and 51 ; or No. 65. (See No. 20.) 



CHAPTER CXVir 



The Yellow Mite. (Cal.) 



( Tctranych us Sp f) 



Class, Arachnida ; / p, -10. 

 Sub-class, AcARiNA ; \ ^ ^^^il^, Trombidid.e. 



[A small yellow mite infesting the branches and foliage of 

 deciduous fruit trees, grapevines and nursery stock.] 



As this species was only brought to notice last year (1882), 

 I cannot give any particulars as to its natural history. The' 

 color is immaculate primrose-yellow, excepting that the male 

 (Fig. 184, Plate 3,) has two bright minute vermillion-red spots 

 on the anterior portion of the ])odv (or on the shoulders) 

 The female (Fig. 185, Plate 3.) is about one seventieth of an 

 inch HI length ; form, ovate ; the male is smaller. 



