LIST OF HOMOPTEROUS INSECTS. 355 



brown ; hind-wings colourless. Length of the body H line ; of the 

 wings 2 lines. 



a. Hudson's Bay. Presented by G. Barnston, Esq. 



(5^23. Delphax vicaria, Mas. 



Fulva ; thorax tricarinatus ; pedes flavi ; aim perbreves suhfulvcc 

 apice fusc<s, ad maryinem posticum fusco maculatcB. 



Body tawny : head narrower and darker than the chest ; ridges 

 of the crown forming a triangle which is intersected by a more slight 

 ridge ; front narrow, forming with the epistoma a long spindle-shaped 

 compartment which has three yellow ridges : moulh tawny with a 

 black tip, reaching the hind-hips : fore-chest little longer than the 

 crown, with three ridges, the side pair diverging towards the hind 

 border, slightly curved : middle-chest much longer than the fore- 

 chest, with three ridges, the side pair straight, much diverging ; 

 hind border produced into an angle which is pale : abdomen ob- 

 conical, a little longer than the chest, legs pale yellow; a single 

 spine on each hind-shank : wings with an indistinct lawny tinge, 

 brown along the tips, and with a brown spot on the hind border be- 

 yond the middle; veins pale yellow. Length of the body 1 line; 

 of the wings H line. 



a. Charles Island, Galapagos. Presented by C. Darwin, Esq. 



b. Pupa ? James Island. Presented by C. Darwin, Esq. 



^^4. Delphax simulans, Mas. 



Fulva ; caputjiavo vittatum ; thorax tricarinatus ; abdominis latera 

 nigra; pedes fulvi ; femora fusca; alee limpidce, perbreves. 



Body dull dark tawny: head narrower than the chest; ridges 

 of the crown forming a triangle ; front large, forming with the eyes 

 and epistoma a triangle which has a yellow rim on each side and a 

 yellow middle stripe, the front has also two more longitudinal yellow 

 stripes which slightly converge at each end : mouth tawny, reaching 

 the hind-hips : fore-chest a little longer than the crown, rounded in 

 front, with three ridges, the side pair much diverging : the middle- 

 chest has three similar ridges, is much longer than the fore-chest, 

 and its hind border is produced into an angle: abdomen obconical, 

 longer than the chest, more or less black on each side, especially in 

 the pupa state : legs tawny ; thighs brown; a single spine on each 



