70 BRITISH CICAD.E. 



Stiroma borealis, Sahib. 



Bitropis borealis, Sahib. 

 Delphax moesta, Flor. 

 Ditropls moesta, Fieb., G. D. t. 8, fig. 18. 

 Stiroma mcesta, Scott ; Fieb., C. E. pt. iv. 92. 

 ,, borealis, Edw. pt. i. 94. 



The Brachypterous female is in appearance very like 

 that of S, alhomarginata, but it is more obtuse in the 

 shape of the abdomen. Colour ochreous, with white 

 carina. The py gofer of the female is of a shape 

 widely oval, or a long trapezium. The styles of the 

 male are ensiform. The lateral plates of the female 

 nearly straight, and white in colour. 



My diagnosis is from a foreign specimen named by 

 M. Lethierry, and in Mr. Mason's cabinet. I have 

 taken Mr. Edwards' synonymy for this species. 



Stiroma affinis, Fieb. Plate XIX., fig. 3. 



Stiroma affinis, Fieb., G. D. t. 8, fig. 18 ; C. E. pt.iv. 



96 ; Edw. pt. i. 95. 

 Stiroma nasalis, Douglas. 



Brachelytrous female fusiform, more acute at the 

 abdominal apex. Colour uniformly ochreous-yellow, 

 with two faint brown marks at the junction of the 

 scutellum and the pronotum. The first part of the 

 pronotum one-half longer than the second. Abdomen 

 with strongly marked rings, and in some examples with 

 a dark stripe on each side. Py gofer tri-acuminate, the 

 central style projecting beyond the outer plates ; the 

 mouth roundish pyriform. TibiaG and tarsi of the hind 

 legs stoutly spurred. Claws black. Elytra grey, and 

 only one-third of the length of the abdomen. A dark 

 spot occurs on each side of the frons. 



