LIST or HOMOPTEROUS INSECTS. 493 



pressed and not much prorluced : its length before the shoulders not 

 exceedinof its breadth between them ; upper ridge slightly undu- 

 lating, extending to the tip of the abdomen, adorned with two pale 

 yellow spots, one a little beyond the l)ase oi the fore-winus, the other 

 at the tip ; two ridges on each side, diverging landward, the lower 

 one short, the upper slightly undulating and extending to the border 

 at two-thirds of the length of the fore-chest : tarsi tawny : fore- 

 wings dark brown, slightly punctured at the base of the fore border, 

 with two discoidal areolets : hind-wings pale gray; veins black. 

 Length of the body If line ; of the wings 3 lines. 



a. United States. Presented by E. Doubleday, Esq. 



40. Enchenopa ascendens. Fern. 



Picea, angusta ; prothorax cornu compresao lineari ahruptc ascen- 

 dente ferruyineo-quadrivittato armatus ; pectus et abdomen 

 nigra ; pedes ferruginei. 



Pitchy, very narrow : head almost triangular, a little longer 

 than broad, hardly narrower than the fore-chest : eyes prominent : 

 fore-chest roughly punctured, very slightly ridged, transversely im- 

 pressed near the fore border, prolonged in front of the head into a 

 compressed abruptly ascending linear horn, its length is about four 

 times its breadth, and it has two parallel ferruginous stripes on each 

 side ; hind part of the fore-chest extending beyond the tip of the ab- 

 domen, having on each side a slight ridge which converges towards 

 the acute tip; breast and abdomen black: legs ferruginous; tibiae 

 flat, fusiform : wings pitchy, long and narrow ; fore-wings punctured 

 with the exception of their tips and some part of the hind border. 

 Length of the body 3^ lines; of the wings 8 lines. 



a. Columbia. From Mr. Turner's collection. 



4L Enchenopa sericea, Fern. 



Ferruginea :. prothorax cornu porrecto compresso subascendente 

 attenuato armatus ; pectus et abdomen nigra; ala nigro-fuscce. 



Ferruginous, clothed with yellow down : head conical, a little 

 longer than broad, narrower than the fore-chest : fore-chest thickly 

 and minutely punctured, ridged, prolonged in front of the head into 

 a much compressed slightly ascending horn, which decreases very 

 little in depth from the base to the tip and is there rounded, its 

 length is about thrice its depth and it has three ridges along each 

 side ; the upper pair of ridges inclose a long narrow lanceolate com- 



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