LIST OF HOMOPTEROrs INSECTS. 715 



lively free from punctures: hind-wings almost colourless; veins 

 tawny. Length of the body 3 lines ; of the wings 7^ lines. 



a. Nova Scotia. From Lieut. Redman's collection. 



25. Ptyelus ixterruptus. 



Castaneus ; caput alho bhnacn latum, antice ferrugineum ; pedes 

 fuh'i ; alcB antic(E Jiavo interrupte bifasciata. 



Nearly allied to P. ocell'ujera. Chestnut colour, shining, mi- 

 nutely punctured: head ferruginous in front, slightly depressed on 

 each side, with two whitish spots near the hind border between the 

 eyes and the eyelets ; face smooth, I'erruginous, very convex ; ridges 

 on each side oblique, very slight : mouth and legs tawny : chest 

 transversely rugulose : fore-wings adorned with two interrupted an- 

 gular yellow bands : hind-wings grayish ; veins black, tawny towards 

 the base. Length of the body 4^ lines ; of the wings 10 lines. 



a. Columbia. From M. Jurgeus' collection. 



26. Ptyelus concolor. 



Testaceus^ depressus ; fades ad discum nigra ; abdomen subtus 

 nigricans; alee posticcE limpidce. 



Testaceous, very minutely punctured, covered with pale down : 

 head and chest flat : head concave along the bind border, more con- 

 vex in front ; disk of the face black, with a broad shallow furrow, 

 on each side of which are nine hardly oblique ridges: mouth and 

 underside of abdomen blackish : hind-wings colourless ; veins 

 tawny, paler towards the base. Length of the body 4 lines; of the 

 wings 9 lines. 



27. Ptyelus sexvittatus. 



Flavus, nigro sexvittatus ; pectus disco nigrum ; abdomen piceum, 

 fulvo fasciatum et univittatum ; alcB anticce fuscce, angusta, 

 albo bimaculatce, albido quadrinotata. 



Yellow, shining: head and chest flat, minutely punctured, 

 adorned with six black stripes: head concave along the hind border, 

 almost conical in front ; its length less than half its breadth ; face 



